Strophomena planumbona

UNB-2018-0197Fossils » Eukaryote » Animalia » Brachiopoda » Strophomenata

Description

Kingdom: Animalia Phylum: Brachiopoda Class: Strophomenata Order: Strophomenida Family: Strophomenidae Genus: Strophomena (Rafinesque and De Blainville, 1824) Species: Strophomena planumbona (Hall, 1847) Two specimens, labeled a and b; One is the brachial valve embedded on the surface of the sediment and the second specimen is of the pedicle valve. Ribs are not visible, the valves are encrusted with sediment. Small beak. Brachial valve is convex and pedicle valve is flat to slightly concave. Circular anterior margin and straight posterior margin.

Specifications

Object nameStrophomena planumbona
IDUNB-2018-0197
Legal statusPermanent collection
CategoryFossil
Classification
Domain:
Eukaryote
Kingdom:
Animalia
Phylum:
Brachiopoda
Class:
Strophomenata
CompositionLimestone
Age
Eon:
Phanerozoic
Era:
Paleozoic
Period:
Ordovician to Late Ordovician
Numeric age450 Mya
OriginRichmond, Indiana, U.S.A.
Pieces2
PartialNo
Measurements
  • 3cm x 2.1cm x 0.8cm
  • 2.6cm x 2.1cm x 0.3cm

Map of Origin