First Record of Cadoceras (Ammonoidea: Cardioceratidae) from the Middle Callovian of Turkmenistan

被引：0
|
作者：
Mitta, V. V. [1 ,2 ]
机构：
[1] Russian Acad Sci, Borissiak Paleontol Inst, Moscow 117647, Russia
[2] Cherepovets State Univ, Cherepovets 162600, Russia
来源：
PALEONTOLOGICAL JOURNAL | 2024年 / 58卷 / 05期
关键词：
Stephanoceratoidea; Cadoceratinae; Middle Jurassic; Middle Callovian; Tuarkyr;
D O I：
10.1134/S0031030124600689
中图分类号：
Q91 [古生物学];
学科分类号：
0709 ; 070903 ;
摘要：
The first specimen of Cadoceras milaschewici (Nikitin) found in the Middle Callovian Jason Zone of Tuarkyr (northwestern Turkmenistan) is discussed. Rare records of ammonites of the subfamily Cadocera-tinae (Cadoceras, Pseudocadoceras, Chamoussetia) are known from the Lower Callovian of adjacent areas-the Northern Caucasus, Mangyshlak, and the Bolshoi Balkhan Ridge. The only published find of a Middle Callovian Cadoceras from the Peri-Caspian region comes from the Jason Zone of Dagestan (Northern Caucasus). It is possible that the local environments were not suitable for Cadoceras, a genus with a cadiconic shell widely represented in the Upper Bathonian-Middle Callovian of the Russian Platform.
引用
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页码：529 / 532
页数：4
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