This rotund, barrel-like belly is on full display in the early herbivorous pelycosaur Cotylorhynchus, whose body dwarfed its tiny head.
这种圆形的桶状腹部在早期食草性盘龙类 Cotylorhynchus 身上得到了充分展示，它的身体使它的小脑袋相形见绌。
Cotylorhynchus
原声例句
PBS地球-动物趣闻
中文百科
杯鼻龙属
杯鼻龙属（属名：Cotylorhynchus）是种大型合弓纲动物，属于盘龙目卡色龙亚目，生存于二叠纪早期到中期的北美洲南部，约2亿6500万年前。杯鼻龙是目前已知最大的卡色龙类与盘龙目动物，C. hancocki是那个时代最大的四足动物。如同其他卡色龙类，杯鼻龙是草食性动物。因为杯鼻龙的体型过大，所以牠们不怕任何肉食性动物。
英语百科
Cotylorhynchus 杯鼻龙属
Cotylorhynchus was a very large synapsid that lived in the southern part of what is now North America during the Early Permian period. It is the best known member of the synapsid clade Caseidae, the largest terrestrial vertebrates of the Early Permian. They were herbivores, and because of their enormous size, probably had no predators.
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