Abstract

The Jurassic rocks of the area of Kanev glacial dislocations (Central Ukraine) with the Bathonian coastal marine (lagoon) and the Lower Callovian normal marine sediments have been studied, the upper part of which was unknown to the predecessors. The zonal and infrazonal scale of the Lower Callovian of Kanev dislocations are elaborated by ammonites and include four zones, five subzones, and 14 biohorizons: Elatmae Zone (the upper part: P. elatmae and P. vasily biohorizons); Subpatruus Zone (the uppermost part: Ch. saratovensis (G. toricelli) Biohorizon); Koenigi Zone with the Gowerianum (G. metorchum and G. gowerianum biohorizons), Curtilobum (G. indigestum, G. curtilobum, and G. crucifer biohorizons), and Galilaeii (G. galilaeii, s.l. Biohorizon) subzones; Calloviense Zone with the Calloviense (S. khvalynicum and S. kiselevi biohorizons) and Enodatum (C. enodatum planicerclus, C. e. enodatum, and C. e. aeeta biohorizons) subzones. This scale is compared with those of European Russia and Western Europe. It is found that the base of the Proplanulites koenigi Zone, which was distinguished by Karitzky (1887) in the sections of the north Kanev dislocations, biostratigraphically corresponds to the base of the eponymous Zone, which was distinguished by Buckman (1913) in North Yorkshire and used in a standard scale of Europe. The ammonites of the families Cardioceratidae, Kosmoceratidae, Perisphinctidae, and Macrocephalitidae common in the Early Callovian in the East European marine basin are revised and their evolution and biogeography are analyzed. It is shown that, at the beginning of the Callovian, this vast young epicontinental basin was a “pot” of neoendemic evolution of various groups of ammonites, which migrated from Arctic, West European, and West Tethyan biochorems. The western (Dnieper–Donets) marine area of the basin, which also includes the area of Kanev dislocations, was a main way for migration of marine organisms between the West and East European paleobiogeographic provinces. New species are described: Paracadoceras vasily Gulyaev, sp. nov., Sigaloceras fundator Gulyaev, sp. nov., and S. kiselevi Gulyaev, sp. nov.

中文翻译：

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Kanev 位错的下 Callovian，乌克兰切尔卡瑟州：菊石和地层学

摘要

已经研究了卡涅夫冰川位错区（乌克兰中部）与巴通期沿海海相（泻湖）和下卡洛夫期正常海相沉积物的侏罗纪岩石，其上部为前人所不知道。Kanev 位错下 Callovian 的纬向和次纬向尺度由菊石详细阐述，包括 4 个区带、5 个亚区和 14 个生物区位：Elatmae 区（上部：P. elatmae 和 P. vasily 生物区）；亚帕特鲁斯区（最上部：Ch. saratovensis (G. toricelli) Biohorizo​​n）；具有 Gowerianum (G. metorchum 和 G. gowerianum biohorizo​​ns)、Curtilobum (G. indigestum、G. curtilobum 和 G. crucifer biohorizo​​ns) 和 Galilaeii (G. galilaeii, sl Biohorizo​​n) 子区的 Koenigi 区；Calloviense 带 Calloviense (S. khvalynicum 和 S. kiselevi biohorizo​​ns) 和 Enodatum (C. enodatum planicerclus、C. e. enodatum 和 C. e. aeeta biohorizo​​ns) 亚区。这一规模与欧洲俄罗斯和西欧的规模相比。发现由 Karitzky (1887) 在北 Kanev 位错剖面中区分的 Proplanulites koenigi 带的底部在生物地层上对应于由 Buckman (1913) 在北约克郡区分的同名带的底部并用于欧洲的标准规模。对东欧海盆早期Callovian常见的Cardioceratidae、Kosmoceratidae、Perisphinctidae和Macrocephalitidae科菊石进行了修订，并对其演化和生物地理学进行了分析。结果表明，在 Callovian 的开头，这个巨大的年轻陆缘盆地是从北极、西欧和西特提斯生物迁徙而来的各种菊石群新地方性演化的“锅”。盆地西部（第聂伯-顿涅茨）海区，也包括卡涅夫位错区，是西欧和东欧古生物地理省份之间海洋生物迁移的主要途径。新物种描述：Paracadoceras vasily Gulyaev, sp。11 月，Sigaloceras 基金资助者Gulyaev，sp。十一月，和S. kiselevi Gulyaev，sp。十一月