Polyptychites (Polyptychites) ramulicosta

Time: 132.6–137.1 million years ago
Period: Unknown
Known sites: 13

Summary

Polyptychites (Polyptychites) ramulicosta was an extinct marine invertebrate, approximately 132.6–137.1 million years ago. Fossils have been recovered from Russia, Svalbard & Jan Mayen, and Greenland, notably in the Palnatokes Bjerg and Rurikfjellet.

Summary generated from Paleobiology Database records. No Wikipedia article is available yet.

Known Sites

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