First Record of Sexual Dimorphism in Toxasterid Echinoid Heteraster from the Early Cretaceous Deposits of the Kopet-Dagh Basin, NE Iran

被引：0
|
作者：
Hossein KAMYABI SHADAN [1 ]
Morteza TAHERPOUR KHALIL-ABAD [2 ]
机构：
[1] Exploration Directorate of the National Iranian Oil Company
[2] Young Researchers and Elite Club, Mashhad Branch, Islamic Azad University
来源：
Acta Geologica Sinica(English Edition) | 2023年 / 05期
关键词：
D O I：
暂无
中图分类号：
P534.53 [白垩纪（系）]; Q915 [古动物学];
学科分类号：
0709 ; 070903 ;
摘要：
Spatangoid echinoids belonging to Heteraster found in the Lower Cretaceous limestones and calcareous deposits of the Tirgan and Sarcheshmeh formations(Barremian–Aptian) in the Bahman jan-Bala stratigraphic section on the northern flank of the Borouj syncline, situated in the eastern Kopet-Dagh Basin, northeastern Iran are assessed as a sexually dimorphic species. Sexual dimorphism is a common feature in echinoids and, in this study of Heteraster renngarteni Poretzkaja, 1961, sexual dimorphism has been detected for the first time in the family Toxasteridae.
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页码：1318 / 1334
页数：17
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