Parastrophinella (Brachiopoda): Its paleogeographic significance at the Ordovician/Silurian boundary
The type species of Parastrophinella, P. reversa, a pentamerid brachiopod from the uppermost Ordovician (Hirnantian) Ellis Bay Formation of Anticosti Island, Quebec, shows that the genus is characterized by three features: 1) a ventral median septum apically buried in a thickened valve floor, but an...
Published in: | Journal of Paleontology |
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Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Cambridge University Press (CUP)
1997
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Subjects: | |
Online Access: | http://dx.doi.org/10.1017/s0022336000039391 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022336000039391 |