noms dans le fil d’Ariane
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.
Some species originally included in Athyris have been reassigned.[1]
Composition: low Mg calcite
Entire body: yes
Adult length: 10 to
Adult width: 10 to
Adult height: 10 to
Folds: minor
Ribbing: minor
Spines: none
Internal reinforcement: none
Locomotion: stationary
Attached: yes
Life habit: low-level epifaunal
Diet: suspension feeder
Vision: blind
Athyris concentrica, pedicle valve
Athyris concentrica, brachial valve
Athyris concentrica, anterior view
Athyris concentrica, posterior view
Athyris concentrica, lateral view
References: Aberhan et al. 2004, Hendy 2009
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.
見內文
無窗貝屬（學名：Athyris）是無窗貝科無窗貝亞科下已滅絕的一個屬，生存在早泥盆紀至三疊紀的海洋中，具有近乎相等的雙凸外殼，一般寬度較長度大。
和本屬相關的屬有Alverezites、Bruntonites和Meristospira。
無窗貝屬下的有些物種現時已被置入其他的屬。[1]
Athyris concentrica的腳狀瓣
Athyris concentrica的臂狀瓣
Athyris concentrica的前視圖
Athyris concentrica的後視圖
Athyris concentrica的側視圖
無窗貝屬（學名：Athyris）是無窗貝科無窗貝亞科下已滅絕的一個屬，生存在早泥盆紀至三疊紀的海洋中，具有近乎相等的雙凸外殼，一般寬度較長度大。
和本屬相關的屬有Alverezites、Bruntonites和Meristospira。
