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Notothyrina
Classification
Phylum:
Brachiopoda
Subphylum:
Rhynchonelliformea
Class:
Rhynchonellata
Order:
Terebratulida
Suborder:
Terebratulidina
Superfamily:
Cryptonelloidea
Family:
Notothyrididae
Formal Genus Name and Reference:
Notothyrina LICHAREW, 1936, p. 271
Type Species:
Notothyris (Notothyrina) pontica, OD
Images
(Click to enlarge in a new window)
Fig. 1338, 5a-b. *N. pontica, dorsal and ventral views, X3 (Licharew, Makridin, & Rzhonsnitskaya, 1960).
Synonyms
Geographic Distribution
North Caucasus (Nikitin Formation)
Age Range
Beginning Stage in Treatise Usage:
Permian (Lopingian)
Beginning International Stage:
Wuchiapingian
Fraction Up In Beginning Stage:
0
Beginning Date:
259.55
Ending Stage in Treatise Usage:
Permian (Lopingian)
Ending International Stage:
Changhsingian
Fraction Up In Ending Stage:
100
Ending Date:
251.9
Description
Very small, ventral valve with two strong folds each bordered by weak lateral folds, internal structures identical to Notothyris except for loop thickened by secondary shell material
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Subphylum:
Rhynchonelliformea
Class:
Rhynchonellata
Order:
Terebratulida
Suborder:
Terebratulidina
Superfamily:
Cryptonelloidea
Family:
Notothyrididae
Formal Genus Name and Reference:
Notothyrina LICHAREW, 1936, p. 271
Type Species:
Notothyris (Notothyrina) pontica, OD
Images
(Click to enlarge in a new window)
Fig. 1338, 5a-b. *N. pontica, dorsal and ventral views, X3 (Licharew, Makridin, & Rzhonsnitskaya, 1960).
Synonyms
Geographic Distribution
North Caucasus (Nikitin Formation)
Age Range
Beginning Stage in Treatise Usage:
Permian (Lopingian)
Beginning International Stage:
Wuchiapingian
Fraction Up In Beginning Stage:
0
Beginning Date:
259.55
Ending Stage in Treatise Usage:
Permian (Lopingian)
Ending International Stage:
Changhsingian
Fraction Up In Ending Stage:
100
Ending Date:
251.9
Description
Very small, ventral valve with two strong folds each bordered by weak lateral folds, internal structures identical to Notothyris except for loop thickened by secondary shell material