Occurrence of a Cephalopod Aptychus in the Ames Limestone...

Occurrence of a Cephalopod Aptychus in the Ames Limestone (Virgilian) of Western Pennsylvania

John A. Harper
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Volume:
63
Language:
english
Journal:
Journal of Paleontology
DOI:
10.2307/1305490
Date:
April, 1989
File:
PDF, 304 KB
english, 1989
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