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Adygella
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Terebratulida
Superfamily:
Dielasmatoidea
Family:
Dielasmatidae
Formal Genus Name and Reference:
Adygella DAGYS, 1959a, p. 25
Type Species:
A. cubanica, OD
Images
(Click to enlarge in a new window)
Fig. 1342, 5a-n. *A. cubanica, Norian, northwestern Caucasus, a-c, dorsal, lateral, and anterior views of holotype, X1, d-m, transverse serial sections 0.4, 1.7, 1.8, 2.2, 2.7, 3.0, 3.6, 4.2, 4.5, 5.8 ~mm from ventral umbo, X1, n, reconstruction of loop, X2 (Dagys, 1974, courtesy of the late A. S. Dagys).
Synonyms
Geographic Distribution
Alps, Carpathians, northwestern Caucasus, China
Age Range
Beginning Stage in Treatise Usage:
Upper Triassic
Beginning International Stage:
Carnian
Fraction Up In Beginning Stage:
0
Beginning Date:
237
Ending Stage in Treatise Usage:
Upper Triassic
Ending International Stage:
Rhaetian
Fraction Up In Ending Stage:
100
Ending Date:
201.36
Description
Small to medium, rounded to pentagonal in outline, biconvex with incipiently uniplicate, anterior commissure, beak short, incurved, beak ridges rounded, foramen small, permesothyrid, dental plates short, diverging, no cardinal process, outer hinge plates horizontal, crural bases distinct, directed ventrally, septalium deep, supported by thin, short septum, loop short (less than 0.3 dorsal valve length), transverse band low, slightly arched.
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Terebratulida
Superfamily:
Dielasmatoidea
Family:
Dielasmatidae
Formal Genus Name and Reference:
Adygella DAGYS, 1959a, p. 25
Type Species:
A. cubanica, OD
Images
(Click to enlarge in a new window)
Fig. 1342, 5a-n. *A. cubanica, Norian, northwestern Caucasus, a-c, dorsal, lateral, and anterior views of holotype, X1, d-m, transverse serial sections 0.4, 1.7, 1.8, 2.2, 2.7, 3.0, 3.6, 4.2, 4.5, 5.8 ~mm from ventral umbo, X1, n, reconstruction of loop, X2 (Dagys, 1974, courtesy of the late A. S. Dagys).
Synonyms
Geographic Distribution
Alps, Carpathians, northwestern Caucasus, China
Age Range
Beginning Stage in Treatise Usage:
Upper Triassic
Beginning International Stage:
Carnian
Fraction Up In Beginning Stage:
0
Beginning Date:
237
Ending Stage in Treatise Usage:
Upper Triassic
Ending International Stage:
Rhaetian
Fraction Up In Ending Stage:
100
Ending Date:
201.36
Description
Small to medium, rounded to pentagonal in outline, biconvex with incipiently uniplicate, anterior commissure, beak short, incurved, beak ridges rounded, foramen small, permesothyrid, dental plates short, diverging, no cardinal process, outer hinge plates horizontal, crural bases distinct, directed ventrally, septalium deep, supported by thin, short septum, loop short (less than 0.3 dorsal valve length), transverse band low, slightly arched.