Rhynchotrema minnesotensis

UNB-2018-0247Fossils » Eukaryote » Animalia » Brachiopoda » Rhynchonellata

Description

Kingdom: Animalia Phylum: Brachiopoda Class: Rhynchonellata Order: Rhynchonellida Family: Rhynchotrematidae Genus: Rhynchotrema (Hall, 1860) Species: Rhynchotrema minnesotensis Two specimens of the brachial and pedicle valves. Medium, defined ribs (~0.09 cm) with thin ornamentation near the anterior margin. Prominent sulcus (~0.5 cm) and fold composed of four ribs (~0.4 cm). Rounded/triangular anterior margin and triangular posterior margin. Small beak. Prominent plication near the commissure.

Specifications

Object nameRhynchotrema minnesotensis
IDUNB-2018-0247
Legal statusPermanent collection
CategoryFossil
Classification
Domain:
Eukaryote
Kingdom:
Animalia
Phylum:
Brachiopoda
Class:
Rhynchonellata
CompositionCalcium carbonate
Age
Eon:
Phanerozoic
Era:
Paleozoic
Period:
Ordovician
Age:
Trentonian
Numeric age485 Mya
OriginCannon Falls, Minnesota, U.S.A.
Pieces2
PartialNo
Measurements
  • 1.2cm x 1cm x 0.6cm
  • 1cm x 0.9cm x 0.8cm

Map of Origin