Post-Triassic nautiloid genera
Post-Triassic nautiloid genera
复制标题
三叠纪后鹦鹉螺属
DOI:
10.1007/978-1-4757-9153-2_13
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发表时间:
1956
期刊:
影响因子:
--
通讯作者:
B. Kummel
中科院分区:
文献类型:
--
作者:
B. Kummel
The shell of an ammonoid is a kind of autobiography of the animal that once occupied it. Different parts of the shell tell different parts of the life history. The growth lines and the tiny intervals in between, along with the shape of the shell itself, record what was happening at the anterior end of the body. The septa and their sutures relate the tale of the other extremity.