标题俄罗斯奥伦堡地区下Vyatkian(上二叠统)一新Pareiasaur (Parareptilia)

IF 0.7 4区 地球科学 Q4 PALEONTOLOGY Paleontological Journal Pub Date : 2023-11-29 DOI:10.1134/s0031030123060023
E. I. Boyarinova, V. K. Golubev
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引用次数: 0

摘要

摘要根据Preobrazhenka-2地区(Orenburg地区)下Vyatkian地区的一具大型成年个体的颅骨后骨架,描述了一种新的异长龙属——Senectosaurus karamzini Boyarinova et Golubev gen. et spnov .。新异角龙的特征是大的颅后平台型骨皮。骨皮扁平,腹面平坦,背面微凸,与相邻的骨皮有一至三个锯齿状或鳞状缝合线的接触面,无背侧隆起和包皮窝,但平台背表面有许多大窝。背侧隆起的缺失区别于所有已知的有颅后骨皮的新顶乳龙。
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A New Pareiasaur (Parareptilia) from the Lower Vyatkian (Upper Permian) of Orenburg Region, Russia

Abstract

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.

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来源期刊
Paleontological Journal
Paleontological Journal 地学-古生物学
CiteScore
1.20
自引率
33.30%
发文量
70
审稿时长
6-12 weeks
期刊介绍: Paleontological Journal (Paleontologicheskii zhurnal) is the principal Russian periodical in paleontology. The journal publishes original work on the anatomy, morphology, and taxonomy of fossil organisms, as well as their distribution, ecology, and origin. It also publishes studies on the evolution of organisms, ecosystems, and the biosphere and provides invaluable information on global biostratigraphy with an emphasis on Eastern Europe and Asia.
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