Nonmarine biostratigraphic/biochronologic schemes have been created for all or parts of the late Carboniferous–Middle Triassic using palynomorphs, megafossil plants, conchostracans, blattoid insects, tetrapod footprints and tetrapod body fossils, and these provide varied temporal resolution. Cross correlation of the nonmarine biochronologies to the Standard Global Chronostratigraphic Scale has been achieved in some parts of the late Carboniferous–Middle Triassic in locations where nonmarine and marine strata are intercalated, the nonmarine strata produce biochronologically significant fossils and the marine strata yield fusulinids, conodonts and/or ammonoids. Other cross correlations have been aided by magnetostratigraphy, chemostratigraphy and a growing database of radioisotopic ages. A synthetic nonmarine biochronology for the late Carboniferous–Middle Triassic based on all available nonmarine index fossils, integrated with the Standard Global Chronostratigraphic Scale, is presented here. The focus is on the nonmarine biostratigraphy/biochronology of blattoid insects, conchostracans, branchiosaurid amphibians, tetrapod footprints and tetrapod body fossils within the biochronological framework of land-vertebrate faunachrons. Correlation to the Standard Global Chronostratigraphic Scale presented here is divided into seven time intervals: Pennsylvanian, Carboniferous–Permian boundary, Cisuralian, Guadalupian, Lopingian, Permian–Triassic boundary and Early to Middle Triassic. The insects, conchostracans and branchiosaurs provide robust nonmarine correlations in the Pennsylvanian–Cisuralian, and the footprints and tetrapod body fossils provide robust correlations of varied precision within the entire Pennsylvanian–Middle Triassic. Radioisotopic ages are currently the strongest basis for cross correlation of the nonmarine biostratigraphy/biochronology to the Standard Global Chronostratigraphic Scale, particularly for the Pennsylvanian–Cisuralian. Chemostratigraphy and magnetostratigraphy thus far provide only limited links of nomarine and marine chronologies. Improvements in the nonmarine-marine correlations of late Paleozoic–Triassic Pangea require better alpha taxonomy and stratigraphic precision for the nonmarine fossil record integrated with more reliable radioisotopic ages and more extensive chemostratigraphic and magnetostratigraphic datasets.

已经为晚石炭纪-中三叠纪的全部或部分地区创建了非海洋生物地层/生物年代学方案，其中使用了古怪型，巨型化石植物、,形纲动物，类扁平昆虫，四足动物脚印和四足动物体化石，这些提供了不同的时间分辨率。在晚石炭纪-中三叠纪的某些地区，非海洋生物年代学与标准全球年代地层刻度之间存在相互关联，在这些地区中插入非海洋和海相地层，非海洋地层产生了具有生物年代学意义的化石，并且海洋地层产生了融合藻类，牙形石和/或铵盐。磁地层学，化学地层学和不断增长的放射性同位素年龄数据库帮助了其他互相关。本文介绍了晚石炭纪-中三叠纪的合成非海洋生物年代学，它基于所有可用的非海洋指数化石，并与标准全球年代地层刻度结合在一起。重点是陆地脊椎动物的生物年代学在生物年代学框架内的类海生昆虫，conconhostracans，分支龙科两栖动物，四足动物足迹和四足动物化石的非海洋生物地层学/生物年代学。这里介绍的与标准全球地层刻度的相关性分为七个时间间隔：宾夕法尼亚州，石炭纪-二叠纪界线，西苏里系，瓜达卢普系，罗平纪，二叠纪-三叠纪界线和早至中三叠纪。昆虫，河豚和分支龙在宾夕法尼亚州-西塞哥里亚人中提供强大的非海洋相关性，并且脚印和四足动物化石在整个宾夕法尼亚州-中三叠纪提供了各种精度的稳固关联。放射性同位素年龄是目前非海洋生物地层学/生物年代学与全球标准年代地层标度之间相互关联的最强基础，特别是对于宾夕法尼亚州-西拉尔人。到目前为止，化学地层学和地磁地层学仅提供了有限的航海和海洋年代学联系。晚期古生代-三叠纪Pangea的非海洋-海洋相关性的改善需要更好的alpha分类法和地层精度，以使非海洋化石记录与更可靠的放射性同位素年龄和更广泛的化学地层和磁地层数据集结合在一起。