A New Pareiasaur (Parareptilia) from the Lower Vyatkian (Upper Permian) of Orenburg Region, Russia

被引：1

作者：

Boyarinova, E. I. ^{[1
,2
]}

Golubev, V. K. ^{[1
]}

机构：

[1] Russian Acad Sci, Borissiak Paleontol Inst, Moscow 117647, Russia

[2] Kazan Volga Reg Fed Univ, Kazan 420008, Russia

来源：

PALEONTOLOGICAL JOURNAL | 2023年 / 57卷 / 06期

基金：

俄罗斯科学基金会;

关键词：

Parareptilia; pareiasaurs; osteoderms; Eastern Europe; Orenburg Region; upper Permian; Lower Vyatkian Substage; OSTEODERMS;

D O I：

10.1134/S0031030123060023

中图分类号：

Q91 [古生物学];

学科分类号：

0709 ; 070903 ;

摘要：

A new genus and species of pareiasaurs, Senectosaurus karamzini Boyarinova et Golubev gen. et sp. nov., is described based on remains of the postcranial skeleton of a large adult individual from the Lower Vyatkian of the Preobrazhenka-2 locality (Orenburg Region). The new pareiasaur is characterized by large postcranial platform-type osteoderms. The osteoderms are flattened, with flat ventral and slightly convex dorsal surfaces, and one to three contact facets of serrate or squamous sutures with adjacent osteoderms, without dorsal elevation and fossae circumcinctae but with numerous large fossae on the dorsal surface of the platform. The absence of the dorsal elevation distinguishes the new pareiasaur from all known pareiasaurs with postcranial osteoderms.

引用

页码：646 / 658

页数：13

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