Temporal range: Valanginian-Early Pleistocene, 140.2–0.781 Ma
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A group of Pycnodonte pulaskiensis fossils from the Clayton Formation, (Paleocene) of Mississippi
Scientific 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]
^"Pycnodonte (Pycnodonte)". The Paleobiology Database. Archived from the original on 2011-07-20. Retrieved 2009-05-02.
^"Pycnodonte: Age Range and Collections". The Paleobiology Database. Archived from the original on 2011-07-20. Retrieved 2009-05-02.
^"Late Cretaceous Stratigraphic Units of the Coastal Plain". United States Geological Survey. July 22, 2003. Retrieved 2009-05-02.
(Gryphaeidae) as Gryphaea. Two genera have been removed from this genus: Pycnodonte and Texigryphaea. Gryphaea arcuata Gryphaea dilatata Wikimedia Commons...
attached in groups to the shell of large species such as Inoceramus. Pycnodonte and Pseudoperna are preserved mostly as calcitic valves and are also found...
include: Belemnites in the genus Belemnitella, Oysters such as Exogyra and Pycnodonte, and rare mosasaur, turtle, and plesiosaur remains. Earth sciences portal...
replaced by silica from the Menuha Formation. Several oysters, possibly Pycnodonte vesicularis, from the Menuha Formation. Irregular echinoid spine from...
†Pterotrigonia thoracica Pulvinites †Pulvinites argenteus Pycnodonte †Pycnodonte vesiculare †Pycnodonte vesicularis †Pyropsis Contents A B C D E F G H I J K...
saltwashensis – type locality for species Pycnodonte †Pycnodonte kellumi – or unidentified related form †Pycnodonte newberryi †Pyncnodonte †Quasicyclotosaurus...
Genus †Labrostrea Vialov, 1936 Genus Neopycnodonte Stenzel, 1971 Genus †Pycnodonte (Fischer von Waldheim, 1835) Genus †Texigryphaea Stenzel, 1959 Subfamily...