First record of the Cenomanian (Cretaceous) ammonite Pachydesmoceras maroccanum from North America

被引：0
|
作者：
Sealey, Paul L. [1 ]
Lucas, Spencer G. [1 ]
机构：
[1] New Mexico Museum Nat Hist & Sci, 1801 Mt Rd NW, Albuquerque, NM 87104 USA
来源：
NEUES JAHRBUCH FUR GEOLOGIE UND PALAONTOLOGIE-ABHANDLUNGEN | 2017年 / 283卷 / 01期
关键词：
Pachydesmoceras maroccanum; Dakota Formation; Paguate Member; Cenomanian; North America; USA; FAUNAS;
D O I：
10.1127/njgpa/2017/0629
中图分类号：
Q91 [古生物学];
学科分类号：
0709 ; 070903 ;
摘要：
A single specimen of Pachydesmoceras maroccanum COLLIGNON was recovered from the middle Cenomanian Acanthoceras amphibolum Zone in the Paguate Member of the Dakota Formation in Sandoval County, New Mexico. Previous to this report, P. maroccanum was only known from the Cenomanian of the Tarfaya Basin in Morocco. The New Mexican specimen is the first known occurrence of P. maroccanum in North America, with only a few occurrences of Pachydesmoceras reported from the continent. It is also the first Cenomanian record of the genus from North America and indicates a trans-Atlantic migration of P. maroccanum.
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页码：77 / 84
页数：8
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