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Grandaurispina
Classification
Phylum:
Brachiopoda
Class:
Strophomenata
Order:
Productida
Superfamily:
Linoproductoidea
Family:
Linoproductidae
Formal Genus Name and Reference:
Grandaurispina Muir-Wood & COOPER, 1960, p. 305
Type Species:
C. kingorum, OD
Images
(Click to enlarge in a new window)
Fig. 370, Ia-d. *G. kingorum, Upper Permian, Word Formation, Texas, $a$, holotype, viewed dorsally, USNM 123454, x1.5, b$, ventral valve exterior, x1}, c, d$, dorsal valve viewed externally showing capillae, internally, x2$ (Muir-Wood & Cooper, 1960).
Synonyms
Geographic Distribution
USA
Age Range
Beginning Stage in Treatise Usage:
Upper Permian (Kazanian)
Beginning International Stage:
Roadian
Fraction Up In Beginning Stage:
0
Beginning Date:
274.37
Ending Stage in Treatise Usage:
Upper Permian (Kazanian)
Ending International Stage:
Roadian
Fraction Up In Ending Stage:
100
Ending Date:
269.21
Description
Medium size with hinge at maximum width, dorsal disk weakly concave with short trail, ribbing fine (capillae) commonly indistinct, rugae weak on dorsal disk, spines thick, in clusters on ears and flanks, thin with slightly elongate bases quincuncially arranged ventrally, dorsal valve with dimples, thin suberect spines, cardinal process sessile, trifid, lacking pit, lateral ridges short, medium septum long.
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Class:
Strophomenata
Order:
Productida
Superfamily:
Linoproductoidea
Family:
Linoproductidae
Formal Genus Name and Reference:
Grandaurispina Muir-Wood & COOPER, 1960, p. 305
Type Species:
C. kingorum, OD
Images
(Click to enlarge in a new window)
Fig. 370, Ia-d. *G. kingorum, Upper Permian, Word Formation, Texas, $a$, holotype, viewed dorsally, USNM 123454, x1.5, b$, ventral valve exterior, x1}, c, d$, dorsal valve viewed externally showing capillae, internally, x2$ (Muir-Wood & Cooper, 1960).
Synonyms
Geographic Distribution
USA
Age Range
Beginning Stage in Treatise Usage:
Upper Permian (Kazanian)
Beginning International Stage:
Roadian
Fraction Up In Beginning Stage:
0
Beginning Date:
274.37
Ending Stage in Treatise Usage:
Upper Permian (Kazanian)
Ending International Stage:
Roadian
Fraction Up In Ending Stage:
100
Ending Date:
269.21
Description
Medium size with hinge at maximum width, dorsal disk weakly concave with short trail, ribbing fine (capillae) commonly indistinct, rugae weak on dorsal disk, spines thick, in clusters on ears and flanks, thin with slightly elongate bases quincuncially arranged ventrally, dorsal valve with dimples, thin suberect spines, cardinal process sessile, trifid, lacking pit, lateral ridges short, medium septum long.