-
Post-glacial vegetation and landscape change in upland Ireland with particular reference to Mám Éan, Connemara Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2021-01-20 Michael O'Connell
Holocene vegetation dynamics of mid-western Ireland are discussed with particular reference to the Galway and Mayo uplands, the development of upland blanket bog and the history of pine and yew. A detailed pollen profile from Mám Éan (Maumeen), a corrie lake, provides insights into environmental change in upland Connemara where, in recent decades, overgrazing and peat erosion have given rise to serious
-
A comparative study on in situ spores of some Paleozoic noeggerathialeans and their implications for dispersed spore assemblages Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2021-01-19 Jiří Bek; Jun Wang
The presence of noeggerathialeans has never been recognized in palynology in the Carboniferous and Permian floras, although they are a very common group as evidenced by megafossil floras. Noeggerathialeans including over 20 genera and 50 species are quite common in the Carboniferous and Permian floras and especially in Cathaysia (present-day China and East Asia). While the spores of this group will
-
Palynostratigraphic reassessment of the Late Devonian of Bjørnøya, Svalbard Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2021-01-05 Gilda Lopes; Gunn Mangerud; Geoff Clayton; Jorunn Os Vigran
A comprehensive study of the Late Devonian palynostratigraphy of Bjørnøya, Svalbard Archipelago is presented. A total of 61 samples collected from 10 outcrops located along the eastern coast of the island were analyzed for palynology yielding a mid- to latest Famennian age. A reassessment of the existing palynostratigraphy of the Ursa Sandstone Unit of the Røedvika Formation was undertaken. As no independent
-
Biostratigraphy and paleogeography of Middle-Late Ordovician palynomorphs from the Llanos Basin, Colombia Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2021-01-04 Claudia V. Rubinstein; María C. Vargas; Felipe de la Parra; Gareth M.G. Hughes
Diverse and moderately to well-preserved palynomorph assemblages, composed of 81 organic-walled phytoplankton species, belonging to 47 genera, and two chitinozoan species, were recorded from the Ordovician rocks of the well RH-2, in the Llanos Basin of Colombia. The stratigraphic distribution of the taxa allows four assemblages to be distinguished that are, from base to top: Assemblage 1, assigned
-
New insights into Late Devensian Lateglacial and early Holocene environmental change: Two high-resolution case studies from SE England Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-12-17 Michael Simmonds; Nicholas Branch; Peter Marshall; Robert Hosfield; Stuart Black
The Late Devensian Lateglacial to early Holocene transition across north-west Europe was characterized by a rapid shift in climate from the cold, harsh conditions of the Loch Lomond Stadial to the warmer climate of the early Postglacial. However, our knowledge of this transition in south-east England has been hampered by the paucity of mires with sedimentary records spanning this period. We present
-
Chromosomes of fossilized Metasequoia from early Oligocene of Siberia Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-12-21 Igor A. Ozerov; Nadezhda A. Zhinkina; Alla A. Torshilova; Eduard M. Machs; Alexander V. Rodionov
We visualized the Feulgen-stained nuclei and chromosomes of fossilized leaves of Metasequoia occidentalis (syn. M. disticha) from West Siberia dated to 29–33 million years old. There are about 22 metacentric chromosomes in somatic anaphase cells. The karyotype of the fossil plant is similar to the modern species M. glyptostroboides. Metasequoia was widespread in middle and high latitudes of Eurasia
-
Upper Jurassic palynology from the Blue Nile Basin (Ethiopia) Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-12-15 Artai A. Santos; Sreepat Jain; José B. Diez
Late Jurassic paleobotanical records from the northeast of Gondwana are rare. We present the first palynological assemblage from the upper part of the Antalo Limestone Formation from the Blue Nile Basin (central western Ethiopia). A diverse and well-preserved assemblage of palynomorphs with 70 morphospecies belonging to 39 morphogenera, including pollen, spores, fungi, algae, dinoflagellates cysts
-
A rare late Mississipian flora from Northwestern Europe (Maine-et-Loire Coalfield, Pays de la Loire, France) Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-12-14 C. Strullu-Derrien; C.J. Cleal; C. Ducassou; A.R.T. Spencer; E. Stolle; V.O. Leshyk
Numerous localities in the Maine-et-Loire coalfield in northwestern France have yielded diverse adpression floras belonging to the Calymmotheca stangeri Zone, indicating an early Namurian (Serpukhovian–late Mississippian) age. The floristic affinities are with the South European Palaeoprovince, although there is some evidence of an ecotonal relationship with the Central European Palaeoprovince to the
-
Pollen morphology of Ligeriinae Hanst. (Gesneriaceae): Diagnostic features and their systematic importance Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-12-16 Eduardo Custódio Gasparino; Cintia Neves de Souza; Fernanda Vitorete Dutra; Maria Amélia Vitorino da Cruz-Barros; Alain Chautems
The subtribe Ligeriinae, composed of three genera (Paliavana Vand., Sinningia Ness and Vanhouttea Lem.) and species with wide morphological differentiation, has not been investigated satisfactorily yet in terms of palynology. Thus, the pollen grains of 35 Brazilian species of Ligeriinae (Gesneriaceae) were studied under light microscopy and some species under scanning and transmission electron microscopy
-
Modern pollen–vegetation relationships across a landscape mosaic in central México Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-12-17 Valerio Castro-López; Gabriela Domínguez-Vázquez; Gerald A. Islebe; Ángel Guadalupe Priego-Santander; Alejandro Velázquez
Modern pollen rain analysis is useful to understand the pollen–vegetation relationship and to improve the understanding of pollen spectra in sediments by reconstructing past vegetation changes. The aim of this paper is to evaluate the pollen and vegetation relationships across the landscape mosaic in central México. A total of 57 moss and surface water samples were collected from different types of
-
Seed cones of Tsuga (Pinaceae) from the upper Miocene of eastern China: Biogeographic and paleoclimatic implications Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-12-01 Su-Ting Ding; Jing-Yu Wu; De-Liang Tang; Shu-Yang Chen; Lin-Bo Mo; Bai-Nian Sun
Six well-preserved seed cones of Tsuga with fine bract-scale complexes were discovered from the late Miocene (Tortonian; 9.2–10.8 Ma) deposits of the Shengxian Formation at the border of Ninghai and Tiantai County, Zhejiang Province, eastern China. The fossil cones possess ovate to elliptic shape, spirally arranged and obovate-orbicular ovuliferous scales, and cuneate-rhombic bracts hidden behind the
-
Late Maastrichtian to Danian organic-walled dinoflagellate cysts and calcareous nannofossils from eastern Austral Basin, Patagonia, Argentina Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-11-02 M.S. González Estebenet; M.V. Guler; Juan Pablo Pérez Panera
Late Maastrichtian to Danian dinoflagellate cyst and calcareous nannofossil biostratigraphy was analyzed at the Sur Río Chico borehole, Austral Basin, Argentina. Two stratigraphical intervals from the 965 to 1003 m below ground surface of the drilled section were defined. The co-occurrence of Manumiella bertodano, M. seelandica and M. conorata in the 990–1000 to 1000–1003 mbgs interval, associated
-
The Late Pennsylvanian flora of the Italian Carnic Alps Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-12-01 Stanislav Opluštil; Josef Pšenička; Zbyněk Šimůnek; Luca Simonetto; Evelyn Kustatscher; Jana Votočková Frojdová
The Pennsylvanian flora from the Italian Carnic Alps, stored in the Museo Friulano di Storia Naturale in Udine, Italy, was revised taxonomically. Plant fossils come from the Bombaso Formation and Pramollo (Auernig) Group (Late Pennsylvanian) that correspond to the lower part of the paralic to shallow marine Carboniferous–Permian Pramollo (or Pramollo-Nasfeld) Basin succession. Most of the ~ 2500 studied
-
The first paleoxylotomical evidence from the Mid-Eocene Climate Optimum from Turkey Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-12-01 Ünal Akkemik; Dimitra Mantzouka; Umut Tunç; Fikret Koçbulut
Petrified wood is important evidence of forest type and past climate. Studies from mainly the Neogene of Turkey described many fossil woods, and revealed valuable information about the paleoenvironment structure and climate. This is the first occurrence of plant macrofossils belonging to the Middle Miocene Climate Optimum, a crucial period in Earth's history, found in Turkey. The purpose of the present
-
A 298-million-year-old gleicheniaceous fern from China Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-11-25 Xuezhi He; Weiming Zhou; Dandan Li; Shijun Wang; Jason Hilton; Jun Wang
The late Paleozoic genera Chansitheca Regè, Oligocarpia Göppert and Szea Z. Yao et T. N. Taylor are small ferns that represent putative early members of the Gleicheniaceae based on their morphology and the anatomy of their fertile organs. However, the rachis and cauline anatomy are unknown, rendering their systematic affinities controversial. Here we document rachides with partly preserved anatomical
-
Paleoenvironmental changes and vegetation of the Transylvanian Basin in the early stages of Lake Pannon (late Miocene, Tortonian) Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-10-31 Viktória Baranyi; Koraljka Bakrač; Krešimir Krizmanić; Dániel Botka; Emőke Tóth; Imre Magyar
New palynological data from the deep-water Gușterița section in the Transylvanian Basin depict the late Miocene evolution of Lake Pannon between 11.0 and 10.5 Ma. Spores and pollen were used to analyze vegetation and climate while dinoflagellate cysts were used to reconstruct lake ecology. The section hosts primarily endemic brackish-water dinoflagellate cysts related to those in the Ponto-Caspian
-
Paleoenvironmental interpretation and palynoflora of Devonian–Carboniferous subsurface sections from the eastern part of the Moesian Platform (Romania) Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-10-31 Daniel Ţabără; Eugen Tudor; Ciprian Chelariu; Radu F. Olaru-Florea
Palynomorph assemblages and palynofacies analyses have been performed on several core samples from the Devonian–Carboniferous deposits identified in five wells located within the eastern region of the Moesian Platform. The investigated sections include, in ascending stratigraphic order, the Ţăndărei, Smirna, Călăraşi and Vlaşin formations. Based on the stratigraphic distribution of key taxa identified
-
Palynology and geochemistry of the Frasnian global transgression in the Parnaíba Basin, Brazil Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-11-02 P. Steemans; E. Pereira; A. Le Hérissé; Y. Grahn; M. Streel; M. Brito; S. Bergamaschi; R. Rodrigues
An integrated palynological and geochemical approach has been initiated to date and to precise the geochemical events of the Pimenteiras Formation, in the Late Devonian from the Parnaíba Basin, Brazil. Based on good biostratigraphic markers and presence of index species among miospores, acritarchs and chitinozoa, the investigated sequences are referred to the Middle to early Late Frasnian. Among Miospores
-
Does the proportion of shattering vs. non-shattering cereal remains in archeobotanical assemblages reflect Near Eastern Neolithic arable fields? Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-10-30 Shahal Abbo; Zvi Peleg; Simcha Lev-Yadun; Avi Gopher
A protracted domestication time-frame for cereals in the Near East is widely endorsed by the plant domestication research community. This occurs in tandem with the pre-domestication cultivation concept, which rests on the assumption that human husbandry operations (namely cultivation) exerted selection pressures in favor of domesticated phenotypes (e.g., non-shattering spikes) at the expense of the
-
Biostratigraphy of acritarchs, chitinozoans, and miospores from Upper Ordovician sequences in Kuh-e Boghou, southwest of Kashmar, eastern central Iran: Stratigraphic and paleogeographic implications Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-11-05 Mohammad Ghavidel-Syooki; Mohammad Hossein Piri-Kangarshahi
A siliciclastic succession is well exposed at Kuh-e Boghou, located in eastern-central Iran. To verify the exact age and paleogeographic position of this section of the Iranian Platform, a detailed, high-resolution palynological analysis of the Ghelli Formation was performed. Sixty-nine surface samples of the sedimentary succession were collected and analyzed. Most samples yielded abundant and well-preserved
-
Acid-free palynological processing: a Permian case study Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-10-31 Alexander Wheeler; Patrick T. Moss; Annette E. Götz; Joan S. Esterle; Daniel Mantle
Acid-free palynological processing was performed on Permian material from a borehole of the southern Galilee Basin, eastern Australia, to test the efficacy compared to standard processing techniques. Both techniques yielded well-preserved assemblages of terrestrial and aquatic palynomorphs. The proportion of phytoclasts was much higher than in samples that underwent standard acid processing, while
-
A new anachoropterid fern from the Asselian (Cisuralian) Wuda Tuff Flora Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-11-11 Weiming Zhou; Josef Pšenička; Jiří Bek; Mingli Wan; C. Kevin Boyce; Jun Wang
A new anachoropterid fern Hansopteris uncinatus gen. et sp. nov. collected from the well-known Chinese “vegetational Pompeii” is recognized on the basis of both vegetative and fertile parts which are excellently preserved as adpressions, a few of which contain carbonized three-dimensional anatomy. Antepenultimate rachises average 3 mm in diameter and are covered by dense scales. Rachis anatomy conforms
-
T0 Early Permian coal-forest preserved in situ in volcanic ash bed in the Wuda Coalfield, Inner Mongolia, China Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-11-09 Stanislav Opluštil; Jun Wang; Hermann W. Pfefferkorn; Josef Pšenička; Jiří Bek; Milan Libertín; Jinrong Wang; Mingli Wan; Xuezhi He; Mengxiao Yan; Haibo Wei; Jana Votočková Frojdová
An early Permian tuff bed between Coal 7 and Coal 6 of the Wuda Coalfield in Inner Mongolia bears T0 peat-forming vegetation preserved in situ. Documentation of the fossil record uncovered in an area of about 80 m2 shows 14 morphotaxa representing 11 whole-plant species with a wide variety of growth forms. The uncovered phytocoenosis is interpreted as a forest dominated by cordaites as the tallest
-
Palynological grouping of Paleozoic marattialean miospores Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-11-04 Jiří Bek
The paper provides in situ records of eight species of spore genera Punctatosporites, Laevigatosporites, Latosporites, Torispora, Cyclogranisporites and Thymospora macerated from fertile plant specimens of genera Asterotheca (A. sp. A and B), Cyathocarpus (C. arborea, C. aff. arborea and Cyathocarpus hemiteloides) and Acitheca (A. ambigua) which come from the Bolsovian to Stephanian B of the Kladno-Rakovník
-
New colonial acritarch Involusphaeridium gutschicki gen. et sp. nov. from the Lower Sappington Formation (Upper Famennian), western Montana, USA Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-10-31 Paweł Filipiak; Marcelina Kondas; Mercedes di Pasquo; Beverly J. Rice; P. Ted Doughty; George W. Grader; Peter E. Isaacson
Palynological investigation carried on the samples from the Unit 1 of the Sappington Formation (Upper Famennian, Montana, USA) reveals a presence of rich phytoplankton and microflora assemblages. The presence of spheroidal vesicles approx. 20 μm in diameter having a rigid smooth wall and frequently arranged in clusters connected by an external coating are proposed as a new taxon named Involusphaeridium
-
Vegetation and wildfire history of Ocate Mesa, Northern New Mexico, USA Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-10-15 Stephen A. Hall
Pollen and charcoal records are developed from Ocate Bog (2905 m, 9530 ft) on Ocate Mesa east of the Sangre de Cristo Mountains in northern New Mexico. The records extend from 12,090 to 410 cal yr BP based on 19 radiocarbon dates. The vegetation on the mesa at present is a mixed conifer and ponderosa pine forest. Pollen percentages and accumulation rates show a continuous mixed conifer forest with
-
Natural to cultural: The vegetation history of the southern Yorkshire Dales, UK Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-10-20 Graeme T. Swindles; Jennifer M. Galloway; Garry Rushworth; Jane Wheeler; Philip Murphy; Timothy F. Taylor
The Yorkshire Dales is one of the most iconic agricultural landscapes in Britain. However, many questions remain over the evolution of this landscape through time and its natural state before major human impacts. Here we present new palynological data that provide insight into the vegetation and fire history of the southern Yorkshire Dales from the late glacial period to present day. Our data suggest
-
Computer-assisted classification and discrimination of common phytoliths in the surface soils of different vegetation types in Northeast China Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-10-10 Niu Honghao; Jichen Shi; Dongmei Jie
Research into phytolith morphology provides essential information for understanding the relationship between phytoliths and vegetation and hence between vegetation and climate, increasing the precision and accuracy of the use of phytolith analysis in paleoenvironmental reconstruction. This study aims to provide an improved basis for the quantitative description and discrimination of the common phytoliths
-
A Cretaceous Gondwana origin of the wax palm subfamily (Ceroxyloideae: Arecaceae) and its paleobiogeographic context Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-09-24 Mahasin Ali Khan; Manoshi Hazra; Sumana Mahato; Robert A. Spicer; Kaustav Roy; Taposhi Hazra; Manosij Bandopadhaya; Teresa E.V. Spicer; Subir Bera
Here we study a well-preserved petrified palm stem from the latest Maastrichtian (Late Cretaceous) to earliest Danian (early Paleocene) sediments (c. 66–65 Ma old) of the Deccan Intertrappean Beds of Madhya Pradesh, Central India. We infer its systematic relationships and relevance to palm evolution. The significant anatomical attributes of the fossil include the presence of fibrovascular bundles (fvbs)
-
A new Ginkgo from the Lower Cretaceous of Liaoning, Northeast China and its evolutionary implications Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-09-12 Sheng-Hui Deng; Xiao-Ju Yang; Zhi-Yan Zhou
A new species of Ginkgo L., G. pediculata sp. nov., is described from the Lower Cretaceous of Liaoning Province, Northeast China, on the basis of a well-preserved ovule-bearing organ. The cuticles of the integument and peduncle are generally similar to those of the lamina and petiole of the associated Ginkgoites manchurica (Yabe et Ôishi) Cao, which is among the most widely distributed Ginkgo-like
-
Pollen rain–vegetation relationship along an elevational gradient in the Serra dos Órgãos National Park, southeastern Brazil Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-09-12 Maria Carolina Guarinello de Oliveira Portes; Hugh DeForest Safford; Vincent Montade; Hermann Behling
We analyzed modern pollen deposition along an altitudinal gradient in the Brazilian southeastern coastal mountains between 1600 and 2200 m elevation in order to investigate the relationship between modern vegetation and pollen rain, within vegetation composed of montane and upper montane forest in a mosaic with campos de altitude (CDA). The results revealed that the CDA pollen assemblage represents
-
Paleocene high-latitude leaf flora of Antarctica Part 1: Entire-margined angiosperms Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-09-24 Anne-Marie P. Tosolini; David J. Cantrill; Jane E. Francis
Paleocene leaf floras are rare in high latitudes of the Southern Hemisphere, where studies have shown higher taxonomic diversity compared to Northern Hemisphere equivalents. The floras provide valuable insights into biodiversity and forest communities during the Paleocene. The Antarctic Peninsula hosts a wealth of Paleocene–Eocene floras which have been used to interpret climates before, during and
-
Paleoclimatic, paleoenvironmental and paleoecological implications of the Family Anemiaceae: A palynological investigation from variable spatial and temporal strata Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-09-24 Sarah Gonçalves Duarte; Francisco José da Silva; Mitsuru Arai; Lana da Silva Sylvestre; Maria Dolores Wanderley; Neerja Jha; Harinam Joshi; Edwige Masure; Haytham El Atfy
The study of the interaction of cicatricose spores, related to the family Anemiaceae, with other botanical groups, in the palynological record, contributes to a better understanding of the paleoecological, paleoclimatic and paleoenvironmental aspects of this family through geological times. The present work based on the investigation of Anemiaceae fossil spores, and other contemporary palynomorphs
-
A new Choerospondias (Anacardiaceae) endocarp from the middle Miocene of Southeast China and its paleoecological implications Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-09-16 Zixi Wang; Fabiany Herrera; Junwu Shu; Suxin Yin; Gongle Shi
Choerospondias (Anacardiaceae) is a monospecific genus that is mainly distributed in the subtropics and tropics of eastern Asia today. Fossil records suggest that the genus was widely distributed throughout Eurasia during the Oligocene and Miocene. In this paper, we describe a new species of Choerospondias based on three-dimensionally preserved endocarps from the middle Miocene of Fujian, Southeast
-
Callialastrobus sousai gen. et sp. nov., a new araucariaceous pollen cone from the Early Cretaceous of Catefica (Lusitanian Basin, western Portugal) bearing Callialasporites and Araucariacites pollen Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-09-08 Jiří Kvaček, Mário Miguel Mendes
A new araucariaceous pollen cone Callialastrobus sousai gen. et sp. nov. is described from the Early Cretaceous (late Aptian–early Albian) Catefica mesofossil flora in the Lusitanian Basin, Estremadura region, western Portugal. The material comprises a single dispersed pollen cone showing peltate deltoid microsporophylls arranged in a helix. Each microsporophyll bears three pollen sacs with Araucariacites
-
Charcoalified homoxylous woods from the Cenomanian of the Bohemian Cretaceous Basin (Czech Republic) Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-09-02 Josef Greguš, Jiří Kvaček, Jakub Sakala
Three types of charcoalified fossil homoxylous woods are described from the Upper Cretaceous of the Bohemian Cretaceous Basin: Podocarpoxylon sp.,?Podocarpoxylon vel Taxodioxylon sp. and Protocupressinoxylon sp. They come from the uppermost part of the Peruc-Korycany Formation, which is mid-Cenomanian in age. Podocarpoxylon sp. shows distinct growth rings, uniseriate rays of medium height, 1–2 podocarpoid
-
Reinvestigation of the marattialean Zhutheca densata (Gu et Zhi) Liu, Li et Hilton from the Lopingian of Southwest China, and its evolutionary implications Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-08-29 Yun Guo; Yu Zhou; Josef Pšenička; Jiří Bek; Shi-Ling Yang; Zhuo Feng
Marattialeans were the most species-rich fern group in the Lopingian (late Permian) Cathaysian floras in the South China Block. However, most previous studies on marattialean ferns focused on their vegetative morphology; in contrast, their reproductive biology has rarely been examined. New compression materials of Zhutheca densata (Gu et Zhi) Liu, Li et Hilton from the Lopingian Xuanwei Formation in
-
Early Oligocene Podocarpium (Leguminosae) from Qaidam Basin and its paleoecological and biogeographical implications Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-08-29 Fang Han, Tinglu Yang, Kexin Zhang, Yafei Hou, Bowen Song
The extinct legume genus Podocarpium first appeared in the middle Eocene of South China and then became widely distributed throughout Eurasia during the Oligocene and Miocene. Fossil records from Central Asia are important for understanding the patterns of floristic change of Podocarpium between Eastern Asia and Europe, but they are relatively rare. Here, we describe well-preserved fossil fruits and
-
The palynology of the Nayband Formation (Upper Triassic) of the Tabas Block, Central Iran Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-08-27 Hossein Sabbaghiyan, Mohammadreza Aria-Nasab, Ebrahim Ghasemi-Nejad
Palynological study of the Upper Triassic Bidestan and Howz-e-Sheikh members of the Nayband Formation of the Tabas Block, Central Iran, revealed relatively diverse and well-preserved assemblages of palynoflora dominated by dinoflagellate cysts and miospores. The two well-known interval dinoflagellate cysts zones of Hebecysta balmei Interval Zone and Rhaetogonyaulax rhaetica Interval Zone were differentiated
-
The history of conifers in central Italy supports long-term persistence and adaptation of mesophilous conifer fungi in Arbutus-dominated shrublands Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-08-21 Di Rita Federico; Atzeni Manuel; Tudino Francesco
A mycological survey from Monti della Tolfa, a volcanic region of central Italy that originated during the Early Pleistocene and remained isolated from the mainland for at least one million years, shows that a thermophilous shrubland dominated by Arbutus unedo preserves fungal species typically associated with conifers. Pinaceae are currently absent from the study area. Palynological data from the
-
Late Holocene climate dynamics and human impact inferred from vegetation and fire history of the Caatinga, in Northeast Brazil Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-08-21 Caio Alves de Moraes, Marcelo A.T. de Oliveira, Hermann Behling
Holocene vegetation changes are good indicators of climate change/and or human impacts. The environmental history in the semi-arid region with Caatinga vegetation in Northeast Brazil has been still little studied. A 420 cm-long sediment core collected in a mire at the Catimbau National Park, State of Pernambuco, has been analyzed for pollen, spores, charcoal, and sedimentological characteristics. The
-
Pollen morphology of Rubiaceae from Cerrado forest fragments: Pollen unit, polarity and diversity of the types of apertures Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-08-15 Fernanda V. Dutra; Talita Kely Bellonzi; Cintia Neves de Souza; Eduardo Custódio Gasparino
The pollen morphology of 23 Brazilian native species of Rubiaceae Juss. from forest fragments of a Cerrado area was analyzed using light microscopy (LM) and scanning electron microscopy (SEM), in the search for new characters that might increase the knowledge on the pollen morphology of the species, and also aiming to help in the taxonomic characterization of the genera. For LM, the pollen grains were
-
Neoarthropitys gondwanaensis gen. nov. et sp. nov. from the Middle Triassic of Gondwana: an intermediate stage in the anatomical trend of Equisetalean stems Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-08-15 Silvia Gnaedinger, Bárbara Cariglino, Ana María Zavattieri, Mariana Monti, Pedro R. Gutiérrez
A new petrified stem from the Middle Triassic Quebrada de los Fósiles Formation (Puesto Viejo Group, San Rafael Basin) in Mendoza Province, central-western Argentina, is described. The specimen shows affinities with fossil and extant Sphenophyta, such as the presence of a medullar cavity and primary xylem with carinal canal. A new genus and species – Neoarthropitys gondwanaensis – is established based
-
New charophyte flora from the Pine Hollow and Claron formations (southwestern Utah). Taxonomic, biostratigraphic, and paleobiogeographic implications Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-08-12 Josep Sanjuan; Alba Vicente; Jeffrey G. Eaton
Paleogene non-marine deposits of the Pine Hollow and Claron formations (southwestern Utah, USA) provided a rich microfossil assemblage composed of charophytes, freshwater gastropods and ostracods. Charophytes were extracted from a ca. 450-m-thick section, especially from floodplain deposits belonging to the Claron and the Pine Hollow formations. The samples from the Pine Hollow Formation includes small
-
Three Aquilapollenites species from the late Maastrichtian of China: New data and comparisons Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-08-11 Maria Tekleva; Svetlana Polevova; Eugenia Bugdaeva; Valentina Markevich; Sun Ge
-
Deciphering interfungal relationships in the 410-million-yr-old Rhynie chert: Brijax amictus gen. et sp. nov. (Chytridiomycota) colonizing the walls of glomeromycotan acaulospores Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-08-07 Michael Krings, Carla J. Harper
Glomeromycotan spores from the Early Devonian Rhynie chert frequently contain evidence of colonization by other fungi. However, relatively few of these relationships have been described and evaluated. Brijax amictus gen. et sp. nov., a probable chytrid (Chytridiomycota) associated with certain thick-walled archaeosporalean acaulospores from the Rhynie chert, develops largely within the host spore wall
-
Yangopteris ascendens (Halle) gen. et comb. nov., a climbing alethopterid pteridosperm from the Asselian (earliest Permian) Wuda Tuff Flora Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-07-31 Weiming Zhou; Shan Wan; Mingli Wan; Jason Hilton; Josef Pšenička; Jun Wang
Alethopteris ascendens Halle is an endemic element in the Permian Cathaysian floras and is assumed to be a member of the Medullosales based on its alethopterid type foliage. Previous accounts have documented only its pinnae and bipinnate fronds, but other parts of the plant are unknown. Here we describe new specimens from the earliest Permian (Asselian) Wuda Tuff Flora that are identified as A. ascendens
-
Oldest Jurassic wood with Gondwanan affinities from the Middle Jurassic of Tibetan Plateau and its paleoclimatological and paleoecological significance Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-07-30 Guoqing Xia, Ning Tian, Marc Philippe, Haisheng Yi, Chihua Wu, Gaojie Li, Zhiqiang Shi
Jurassic flora of the Tibetan Plateau is poorly known, with limited fossil records. The paleobiogeography of terrestrial biota is, however, one of the major evidences to reconstruct the intricate paleogeography of an area. Well-preserved fossil wood is described from the Middle Jurassic Xiali Formation (Callovian) in the South Qiangtang terrane of the Tibetan Plateau, SW China. The wood specimen is
-
Don't lose sight of the forest for the trees! Discerning Iberian pine communities by means of pollen‐vegetation relationships Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-07-26 José Antonio López-Sáez, J. Julio Camarero, Daniel Abel-Schaad, Reyes Luelmo-Lautenschlaeger, Sebastián Pérez-Díaz, Francisca Alba-Sánchez, José S. Carrión
A set of 30 modern pollen samples collected in pine communities of the Gúdar Range (southeastern Iberian System) has been investigated to determine the relationships between pollen percentages and vegetation composition along a ~ 1000 m elevation transect. Pollen representation was estimated by comparing the presence of plant taxa from a recent vegetation survey with pollen spectra. Classification
-
The carbon isotopic composition of occluded carbon in phytoliths: A comparative study of phytolith extraction methods Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-07-25 Biswajit Roy, Sutapa Patra, Prasanta Sanyal
Phytoliths are microscopic siliceous particles that precipitate within epidermal cells of plant leaves. Phytolith morphology and its carbon isotopic composition (δ13C) are often used to understand the past vegetation composition. To extract phytoliths from modern plants, two different wet-oxidation, dry ashing and microwave digestion techniques have been used. However, the impact of these techniques
-
New Pliocene records of plant fossil-taxa from NW Portugal and their relevance for the assessment of diversity loss patterns in the late Cenozoic of Europe Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-07-25 Edoardo Martinetto, Manuel Vieira
The section of São Pedro da Torre (NW Portugal) is relevant because its rich pollen content, chronologically correlated to the late Pliocene assemblages of the reference section of Rio Maior. The purpose of this study was to carry out, for the first time in the area, a taxonomic analysis of the carpological remains and integrate the results with those of the previous palynological studies. Our carpological
-
Fossil record of Ceratophyllum aff. muricatum Cham. (Ceratophyllaceae) from the middle Eocene of central Tibetan Plateau, China Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-07-24 Cédric Del Rio, Teng-Xiang Wang, Fei-Xiang Wu, Xiao-Qing Liang, Teresa E.V. Spicer, Zhe-Kun Zhou, Tao Su
Ceratophyllaceae Gray is a cosmopolitan submersed family in angiosperm. The fossil record is mainly composed of fruits ranging in age from the Cretaceous to the Neogene within the Northern Hemisphere. However, its fossil record in Asia is sparse. Here we report on a fossil fruit attributed to Ceratophyllum aff. muricatum Cham. from the early middle Eocene of the Niubao Formation in Bangor County, central
-
A new pollen sequence from southern Iberia suggesting coastal Pleistocene phytodiversity hotspot Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-07-22 Juan Ochando, José Antonio López-Sáez, Sebastián Pérez-Díaz, Julián Ramos-Fernández, Manuel Munuera, Santiago Fernández, Federico B. Galacho-Jiménez, Reyes Luelmo-Lautenschlaeger, José S. Carrión
This paper presents a palynological study of the archeological layers from the Neanderthal site Abrigo 3 del Complejo del Humo, in southern Spain (Málaga), with the aim of reconstructing the environmental conditions in the vicinity of this hominin site. The Upper Pleistocene vegetation and its variability are described, revealing a high diversity of thermophilous plant taxa throughout the cold dry
-
Pollen morphology of Croton of the New World and pollen evolution of tribe Crotoneae (Euphorbiaceae) Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-07-15 Lidian Ribeiro de Souza, Otávio Luis Marques da Silva, Francisco de Assis Ribeiro dos Santos, Daniela Santos Carneiro-Torres
Croton has ca. 1200 species and a pantropical distribution, representing the second largest genus in Euphorbiaceae. In this work, we aim to characterize morphologically the pollen grains of 105 species of Croton, besides other representatives of tribe Crotoneae, to provide palynological data sustaining its current delimitation and classification and understand how pollen grains evolved in the tribe
-
Birch-sedge communities, forest withdrawal and flooding at the beginning of Heinrich Stadial 3 at the southern Alpine foreland Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-07-07 Cesare Ravazzi, Federica Badino, Renata Perego, Paolo Bertuletti, Mattia De Amicis, Massimiliano Deaddis, Lorena Garozzo, Massimo Domenico Novellino, Roberta Pini
-
Are your hands clean? Pollen retention on the human hand after washing. Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-07-04 Chris O Hunt,Zuzanna Morawska
Pollen retention on clothes, footwear, hair and body has been used to link people to localities with distinctive vegetation, or soils containing distinctive palynomorphs. Little attention has been given to human skin as a possible medium for carrying a forensically important pollen load and whether this might survive attempts to remove it. We report here the results of experiments testing the retention
-
Pollen analysis of present-day striped hyena (Hyaena hyaena) scats from central Iran: Implications for dryland paleoecology and animal paleoethology Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-07-04 Morteza Djamali, Marjan Mashkour, Hossein Akhani, Dahvya Belkacem, Belinda Gambin, Michelle Leydet, Nafiseh Samadi, Margareta Tengberg, Emmanuel Gandouin
The striped hyena is the largest living omnivorous scavenger in SW Asia. It generally lives in semi-arid desert steppe regions, often denning in small caves, rock shelters, and burrows close to human settlements. Bone fragments of wild and domestic animals and desiccated scats are frequently found in the hyena dens. In this study, eight striped hyena desiccated scats were subjected to pollen analysis
-
Adpression of medullosan prepollen-producing organs, their prepollen and cuticles (Westphalian, Intrasudetic Basin, Czech Republic) Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-07-04 Zbyněk Šimůnek
The adpression fossil record from the Westphalian of the Intrasudetic Basin (Czech Republic) contains diversified medullosan prepollen organs. Langsettian bell-shaped prepollen organs were found in the Lampertice Member in the Žacléř area: Whittleseya elegans Newberry, W. delphinae Stockmans et Willière, W. silesiaca Pacyna et Zdebska and Givesia media (Stockmans) Stockmans et Willière. These fructifications
-
Myrtaceae pollen morphology study from Bass Strait islands, Australia, is effective in separating region-specific fossil Myrtaceae pollen types Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-07-02 Matthew Adesanya Adeleye, Felicitas Viktoria Luise Hopf, Simon Graeme Haberle
The identification of Myrtaceae pollen to species level in fossil records has challenged palynologists due to the similarity of pollen grains produced by species in this family. Here, we present a pollen morphological study of the Myrtaceae species found in a specific region of southeastern Australia, the islands of the Furneaux Group in Bass Strait, and apply this to fossil pollen records from the
-
Fruit of Staphylea (Staphyleaceae) from the Oligocene of Montana, USA Rev. Palaeobot. Palynol. (IF 1.425) Pub Date : 2020-06-29