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Oldhamina
Classification
Phylum:
Brachiopoda
Class:
Strophomenata
Order:
Productida
Superfamily:
Lyttonioidea
Family:
Lyttoniidae
Formal Genus Name and Reference:
Oldhamina WAAGEN, 1883, p. 403
Type Species:
Bellerophon decipiens de KONINCK, 1863, p. 8, OD
Images
(Click to enlarge in a new window)
Fig. 458, 2a-c. *O. decipiens (de Koninck), Upper Permian, Pakistan, $a, b$, posterior, dorsal views of dorsal valve, $\\mathbf{X}_{3}$, $c$, ventral interior, $\\mathbf{X}_{3}$ (Waagen, 1883).
Synonyms
Waagenopora, Oldhamella, Oldhamia
Geographic Distribution
Asia
Age Range
Beginning Stage in Treatise Usage:
Upper Permian
Beginning International Stage:
Wuchiapingian
Fraction Up In Beginning Stage:
0
Beginning Date:
259.55
Ending Stage in Treatise Usage:
Upper Permian
Ending International Stage:
Changhsingian
Fraction Up In Ending Stage:
100
Ending Date:
251.9
Description
Ventral valve strongly convex, surface nearly smooth with fine growth banding, posterior flap recurved and rolled back in successive layers, internal septa medianly high, tapering laterally, sharp, inclined anteriorly, and strongly arcuate toward anterior to accommodate deep concavity of shell interior, dorsal valve with broad flattened hinge region and straight hinge line, cardinal process bilobed, median septum long, sharp, extending to anterior bifurcation of valve, lobes evenly spaced and more or less symmetrical, cambered with trailing edges anterior, external surface finely tuberculate. Upper Permian: Asia.
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Class:
Strophomenata
Order:
Productida
Superfamily:
Lyttonioidea
Family:
Lyttoniidae
Formal Genus Name and Reference:
Oldhamina WAAGEN, 1883, p. 403
Type Species:
Bellerophon decipiens de KONINCK, 1863, p. 8, OD
Images
(Click to enlarge in a new window)
Fig. 458, 2a-c. *O. decipiens (de Koninck), Upper Permian, Pakistan, $a, b$, posterior, dorsal views of dorsal valve, $\\mathbf{X}_{3}$, $c$, ventral interior, $\\mathbf{X}_{3}$ (Waagen, 1883).
Synonyms
Waagenopora, Oldhamella, Oldhamia
Geographic Distribution
Asia
Age Range
Beginning Stage in Treatise Usage:
Upper Permian
Beginning International Stage:
Wuchiapingian
Fraction Up In Beginning Stage:
0
Beginning Date:
259.55
Ending Stage in Treatise Usage:
Upper Permian
Ending International Stage:
Changhsingian
Fraction Up In Ending Stage:
100
Ending Date:
251.9
Description
Ventral valve strongly convex, surface nearly smooth with fine growth banding, posterior flap recurved and rolled back in successive layers, internal septa medianly high, tapering laterally, sharp, inclined anteriorly, and strongly arcuate toward anterior to accommodate deep concavity of shell interior, dorsal valve with broad flattened hinge region and straight hinge line, cardinal process bilobed, median septum long, sharp, extending to anterior bifurcation of valve, lobes evenly spaced and more or less symmetrical, cambered with trailing edges anterior, external surface finely tuberculate. Upper Permian: Asia.