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Pterotrigonia aff. thoracica (van Hoepen 1929) Single Clam valve
(DSM# 10171) Pterotrigonia is the state fossil of Tennessee. This specimen is preserved in pyrite.
Pugnellus densatus (Conrad 1860) Sea Snail Fossil
(DSM# 3257/FK143) An extinct genus of marine snail.
Pugnellus densatus (Conrad 1860) Snail Fossil
(no DSM#) Extinct species - Living snails from this family are slow moving and feed organic material found on the ocean floor (detritivores).
Pycnodonte convexa (Say 1820) Articulated right/left valve
(no DSM#) This common name for this type of oyster is called the Foam Oyster, or Honeycomb Oyster. Their temporal range extends all they way to the early Pleistocene, which means they survived the K-Pg extinction.
Pycnodonte convexa (Say 1820) Oyster internal and external view of left valve
(DSM# 10761) Bottom image of shell shows growth lines. The upper image shows the inside of the oyster including the round muscle scar.
Pycnodonte mutabilis (Morton 1828) Left valve - interior and exterior
(DSM# FK105) Extinct genus of oysters.
Pycnodonte vesicularis (Lamarck 1801) Oyster left valve
(DSM# 10747) The common name of this species is called a Devil's toenail.
Pycnodonte cf. vesicularis (Campbell & Engel 1963) Oytster left valve - interior and exterio
(DSM# FK117) Extinct bivalve suspension feeder of the Paleozoic.
Pyropsis proxima (Wade 1926) Sea Snail Fossil
(DSM# 5589/FK340) Extinct genus - This snail was epifaunal (lived on the ocean floor) and was likely highly mobile as it searched for food.