Uber die innere organisation und stammesgeschichte einiger irregularer seeigel der obern kreide ...

Bibliographic Details
Main Author:	Klinghardt, Franz
Format:	Thesis Book
Language:	German
Published:	Jena : [Frommannsche Buchdruckerei], 1911.
Subjects:	Sea urchins, Fossil. Paleontology > Cretaceous.

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