Redescription of Cryptopecten yanagawaensis (NOMURA and ZINBO) : Paleontological Study of the Molluscan Fauna from the Moniwa Formation Part-2 - Collections

＜departmental bulletin paper＞
Redescription of Cryptopecten yanagawaensis (NOMURA and ZINBO) : Paleontological Study of the Molluscan Fauna from the Moniwa Formation Part-2

Creator	Creator Name Sato, Yoshio 佐藤, 喜男サトウ, ヨシオ Affiliation Affiliation Name Faculty of Science, Kyushu University 九州大学理学部
Language	English
Publisher	Faculty of Science, Kyushu University
Publisher	九州大学理学部
Date	1984-11-15
Source Title	Memoirs of the Faculty of Science, Kyūsyū University. Series D, Geology
Vol	25
Issue	2
First Page	247
Last Page	269
Publication Type	Version of Record
Access Rights	open access
Crossref DOI	https://doi.org/10.5109/1546098
Abstract	This paper gives a redescription of a Miocene pectinid, Cryptopecten yanagawaensis (NOMURA and ZINBO) which occurs mainly in the beds aged 16 Ma, the early Medial Miocene. The present species is one o...f the most characteristic ones of the molluscan fauna of the Moniwa Formation and is presumed to be ancestor of the Pliocene and Recent species, C. vesiculosus (DUNKER). By way of block sampling method the writer collected more than 200 free specimens from 18 samples taken from the Moniwa Formation which yields many best preserved specimens. Redescription of the species is made by applying the results from paleoautoecological analysis. This paper also refers to the geographic and stratigraphic distribution and paleoecology of the species.show more

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