Athyris

Athyris
Temporal range: Lower Devonian - Triassic
Athyris concentrica
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Brachiopoda
Class: Rhynchonellata
Order: †Athyridida
Family: †Athyrididae
Subfamily: †Athyridinae
Genus: †Athyris
McCoy, 1844
Species
  • A. concentrica (Von Buch, 1834) type = Terebratula concentrica
  • A. lamellosa (Léveillé)
  • A. vittata Hall
Synonyms

Cliothyris, Spirithyris, Euthyris, Cleidothyris

Athyris is a brachiopod genus with a subequally biconvex shell that is generally wider than long and a range that extends from the Silurian into the Triassic. Athyris is the type genus for the Athyrididae, which belongs to the articulate order Athyridida. R.C. Moore (1952) gives a shorter range, from the Mid Devonian to the Lower Mississippian.

Alverezites, Bruntonites, and Meristospira are among related genera.

Reassigned species

Some species originally included in Athyris have been reassigned.

Ecology and taphonomy

Composition: low Mg calcite

Entire body: yes

Adult length: 10 to < 100

Adult width: 10 to < 100

Adult height: 10 to < 100

Folds: minor

Ribbing: minor

Spines: none

Internal reinforcement: none

Locomotion: stationary

Attached: yes

Life habit: low-level epifaunal

Diet: suspension feeder

Vision: blind

References: Aberhan et al. 2004, Hendy 2009

References

  1. ↑ Moore, R.C. (1965). Brachiopoda. Treatise on Invertebrate Paleontology. Vol. Part H., Volume 1 and 2. Boulder, Colorado/Lawrence, Kansas: Geological Society of America/University of Kansas Press. ISBN 0-8137-3015-5.