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Flexaria
Classification
Phylum:
Brachiopoda
Class:
Strophomenata
Order:
Productida
Superfamily:
Productoidea
Family:
Productidae
Formal Genus Name and Reference:
Flexaria MUIR - OOD & COOPER , 1960, p. 258
Type Species:
Productus arkansanus GIRTY, 1910, p. 216; OD]
Images
(Click to enlarge in a new window)
Fig. 340, 2a–f. *F. arkansana (GIRTY), upper Viséan–lower Serpukhovian; a, dorsal view of complete specimen, Missouri, ×1; b–d, ventral, posterior, lateral views of complete specimen, Missouri, ×1; e, dorsal valve interior, Oklahoma, ×2; f, lateral view of dorsal valve, Oklahoma, ×2 (Muir-Wood & Cooper, 1960).
Synonyms
Geographic Distribution
North America
Age Range
Beginning Stage in Treatise Usage:
Lower Carboniferous (upper Viséan)
Beginning International Stage:
Visean
Fraction Up In Beginning Stage:
66
Beginning Date:
335.91
Ending Stage in Treatise Usage:
Lower Carboniferous (lower Serpukhovian)
Ending International Stage:
Serpukhovian
Fraction Up In Ending Stage:
50
Ending Date:
326.87
Description
Resembles Buxtonia, but differing in its flat dorsal disk, geniculate trail; short lateral ridges, more elongate adductor muscle scars.
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Class:
Strophomenata
Order:
Productida
Superfamily:
Productoidea
Family:
Productidae
Formal Genus Name and Reference:
Flexaria MUIR - OOD & COOPER , 1960, p. 258
Type Species:
Productus arkansanus GIRTY, 1910, p. 216; OD]
Images
(Click to enlarge in a new window)
Fig. 340, 2a–f. *F. arkansana (GIRTY), upper Viséan–lower Serpukhovian; a, dorsal view of complete specimen, Missouri, ×1; b–d, ventral, posterior, lateral views of complete specimen, Missouri, ×1; e, dorsal valve interior, Oklahoma, ×2; f, lateral view of dorsal valve, Oklahoma, ×2 (Muir-Wood & Cooper, 1960).
Synonyms
Geographic Distribution
North America
Age Range
Beginning Stage in Treatise Usage:
Lower Carboniferous (upper Viséan)
Beginning International Stage:
Visean
Fraction Up In Beginning Stage:
66
Beginning Date:
335.91
Ending Stage in Treatise Usage:
Lower Carboniferous (lower Serpukhovian)
Ending International Stage:
Serpukhovian
Fraction Up In Ending Stage:
50
Ending Date:
326.87
Description
Resembles Buxtonia, but differing in its flat dorsal disk, geniculate trail; short lateral ridges, more elongate adductor muscle scars.