Pycnodonte

Pycnodonte
Temporal range: Valanginian-Early Pleistocene, 140.2–0.781 Ma
A group of Pycnodonte pulaskiensis fossils from the Clayton Formation, (Paleocene) of Mississippi
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Order: Ostreida
Family: Gryphaeidae
Genus: †Pycnodonte
Fischer von Waldheim (1835)[1]

Pycnodonte is a genus of extinct oysters, fossil marine bivalve mollusks in the family Gryphaeidae, the foam oysters or honeycomb oysters. Shells of species in this genus are found around the world in fossil shell beds from the Valanginian (140.2 Ma) to the Early Pleistocene (0.781 Ma).[2] They are a commonly found fossil in Cretaceous shellbeds of the Navesink Formation in New Jersey.[3]

  1. ^ "Pycnodonte (Pycnodonte)". The Paleobiology Database. Archived from the original on 2011-07-20. Retrieved 2009-05-02.
  2. ^ "Pycnodonte: Age Range and Collections". The Paleobiology Database. Archived from the original on 2011-07-20. Retrieved 2009-05-02.
  3. ^ "Late Cretaceous Stratigraphic Units of the Coastal Plain". United States Geological Survey. July 22, 2003. Retrieved 2009-05-02.