Athyris
Genus of brachiopods From Wikipedia, the free encyclopedia
Genus of brachiopods From Wikipedia, the free encyclopedia
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.
| Athyris Temporal range: Lower Devonian - Triassic | |
|---|---|
| |
| Athyris concentrica | |
| Scientific classification | |
| Kingdom: | |
| Phylum: | |
| Class: | |
| Order: | |
| Family: | Athyrididae |
| Genus: | Athyris McCoy, 1844 |
| species | |
| Synonyms | |
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Cliothyris, Spirithyris, Euthyris, Cleidothyris | |
Alverezites, Bruntonites, and Meristospira are among related genera.
Some species originally included in Athyris have been reassigned.[1]
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
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