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Notothyris
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Terebratulida
Superfamily:
Cryptonelloidea
Family:
Notothyrididae
Formal Genus Name and Reference:
Notothyris WAAGEN, 1882, p. 336
Type Species:
Terebratula subvesicularis Davidson, 1862, p. 27, SD Hall & CLARKE, 1893, p. 275
Images
(Click to enlarge in a new window)
Fig. 1338, 4a-c. *N. subvesicularis (Davidson), Salt Range, Pakistan, dorsal, lateral, and anterior views, approximately X1.5 (Waagen, 1882).——Fig. 1338, 4d. N. sp., Salt Range, Pakistan, interior of dorsal valve, X2 (Cooper & Grant, 1976b).
Synonyms
Geographic Distribution
USA (Texas), Italy, Pakistan, southern China, Thailand
Age Range
Beginning Stage in Treatise Usage:
Permian (Wordian)
Beginning International Stage:
Wordian
Fraction Up In Beginning Stage:
0
Beginning Date:
269.21
Ending Stage in Treatise Usage:
Permian (Changhsingian)
Ending International Stage:
Changhsingian
Fraction Up In Ending Stage:
100
Ending Date:
251.9
Description
Small to medium size, anteriorly plicate, anterior commissure rectimarginate to slightly unisulcate, adult shells commonly with abruptly bent anteriors and broadly truncated anterior margin, hinge plate apically perforate, loop with broad descending lamellae, incipient median vertical plate
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Terebratulida
Superfamily:
Cryptonelloidea
Family:
Notothyrididae
Formal Genus Name and Reference:
Notothyris WAAGEN, 1882, p. 336
Type Species:
Terebratula subvesicularis Davidson, 1862, p. 27, SD Hall & CLARKE, 1893, p. 275
Images
(Click to enlarge in a new window)
Fig. 1338, 4a-c. *N. subvesicularis (Davidson), Salt Range, Pakistan, dorsal, lateral, and anterior views, approximately X1.5 (Waagen, 1882).——Fig. 1338, 4d. N. sp., Salt Range, Pakistan, interior of dorsal valve, X2 (Cooper & Grant, 1976b).
Synonyms
Geographic Distribution
USA (Texas), Italy, Pakistan, southern China, Thailand
Age Range
Beginning Stage in Treatise Usage:
Permian (Wordian)
Beginning International Stage:
Wordian
Fraction Up In Beginning Stage:
0
Beginning Date:
269.21
Ending Stage in Treatise Usage:
Permian (Changhsingian)
Ending International Stage:
Changhsingian
Fraction Up In Ending Stage:
100
Ending Date:
251.9
Description
Small to medium size, anteriorly plicate, anterior commissure rectimarginate to slightly unisulcate, adult shells commonly with abruptly bent anteriors and broadly truncated anterior margin, hinge plate apically perforate, loop with broad descending lamellae, incipient median vertical plate