Athyris spiriferoides

UNB-2018-0059Fossils » Eukaryote » Animalia » Brachiopoda » Rhynchonellata

Description

Kingdom: Animalia Phylum: Brachiopoda Class: Rhynchonellata Order: Athyridida Family: Athyrididae Genus: Athyris (McCoy, 1844) Species: Athyris spiriferoides (Eaton, 1831) Three specimens labelled a to c, with both the brachial and pedicle valves preserved. Largest specimen is poorly preserved. Faint, thin ribs but defined concentric growth lines. Pedicle valve is concave near the anterior margin and the brachial valve is convex on the smallest specimen. Rounded/triangular anterior margin and triangular posterior margin. Small beak.

Specifications

Object nameAthyris spiriferoides
IDUNB-2018-0059
Legal statusPermanent collection
CategoryFossil
Classification
Domain:
Eukaryote
Kingdom:
Animalia
Phylum:
Brachiopoda
Class:
Rhynchonellata
CompositionCalcium carbonate
Age
Eon:
Phanerozoic
Era:
Paleozoic
Period:
Devonian
Epoch:
Middle Devonian to Upper Devonian
Age:
Eifelian to Famennian
Numeric age393.3 - 372.2 Mya
OriginHamilton, Ontario, Canada
Pieces3
PartialNo
Measurements
  • 4.8cm x 4cm x 1.5cm
  • 3cm x 2.6cm x 1cm
  • 3cm x 2.5cm x 1.5cm

Map of Origin

Publications

  • J. Hall. 1867. Natural History of New York, Palaeontology: Containing descriptions and figures of the fossil Brachiopoda of the upper Helderberg, Hamilton, Portage and Chemung Groups. Geological Survey of New York 4(1):1-428