Wednesday, February 16, 2022

What Genus is this Ammonite Fossil?

 


My cousin Kenny acquired a partially exposed ammonite fossil from a long time mineral collector years ago. Recently, he has prepped more of it showing more of the inner whorl.  No collecting information is known about it and image searches have not shown any fossil quite like it.

The current guess as to what it might be is Euaspidoceras

UPDATE (August 2022): I now wonder if this a Prionocyclus hyatti  (Stanton, 1894) found in Kansas in the Cretaceous Period Carlile Formation. See this specimen at the Sternberg Museum of Natural History at Fort Hays State University.

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