Coptothyris Sous-embranchement (subphylum) des Rhynchonelliformea Classe des Rhynchonellata Ordre des Terebratulida Sous-Ordre des Terebratellidina Super-famille des Laqueoidea

Genus Coptothyris Jackson, 1918

[Type species= Terebratula grayii Davidson, 1852 (p. 76); = Magasella adamsi Davidson, 1871 (p. 307)]

Medium to large, biconvex, subquadrate to transversely oval, rectimarginate to mildly uniplicate, multicostate; beak suberect, attrite, foramen large, mesothyrid to permesothyrid; deltidial plates conjunct in adults. Pedicle collar short, hinge teeth strong, dental plates ven- trally recessive with very reduced, lateral umbonal cavities. Cardinalia as in Terebratalia, median septum very low, loop teloform.

Neogene (Miocene) - Present Diagnosis from volume 5 of the Treatise on Invertebrate Paleontology (2006)

Extant Species of Coptothyris

T. grayii (Davidson, 1852)

Diagnosis

Coptothyris grayii  (Davidson, 1852) Type locality: Coast of Korea; Coll.Cuming. Depth range: 2 - 353 m Terebratula grayii Davidson, 1852 Magasella adamsi Davidson, 1871 Waldheimia grayi: Davidson (1886) Coptothyris grayi: Thomson (1927) Coptothyris adamsi: Allan (1947) Diagnosis - in preparation