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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