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Pseudosyrinx
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Spiriferinida
Superfamily:
Syringothyridoidea
Family:
Syringothyrididae
Formal Genus Name and Reference:
Pseudosyrinx WELLER, 1914, p. 404
Type Species:
P. missouriensis, OD
Images
(Click to enlarge in a new window)
Fig. 1267, 1a-e. * P. missouriensis, upper Tournaisian, Missouri, USA, holotype, anterior, posterior, lateral, ventral, and dorsal views, X1 (Weller, 1914).
Synonyms
Geographic Distribution
cosmopolitan
Age Range
Beginning Stage in Treatise Usage:
Carboniferous (upper Tournaisian)
Beginning International Stage:
Tournaisian
Fraction Up In Beginning Stage:
66
Beginning Date:
351
Ending Stage in Treatise Usage:
Carboniferous (lower Visean)
Ending International Stage:
Visean
Fraction Up In Ending Stage:
33
Ending Date:
341.32
Description
Medium to large, externally similar to Syringothyris, ventral interarea high, flattened, usually procline, more rarely catacline to slightly apsacline, delthyrial plate large, slightly below plane of interarea, syrinx absent, position of adductor attachment unknown.
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Spiriferinida
Superfamily:
Syringothyridoidea
Family:
Syringothyrididae
Formal Genus Name and Reference:
Pseudosyrinx WELLER, 1914, p. 404
Type Species:
P. missouriensis, OD
Images
(Click to enlarge in a new window)
Fig. 1267, 1a-e. * P. missouriensis, upper Tournaisian, Missouri, USA, holotype, anterior, posterior, lateral, ventral, and dorsal views, X1 (Weller, 1914).
Synonyms
Geographic Distribution
cosmopolitan
Age Range
Beginning Stage in Treatise Usage:
Carboniferous (upper Tournaisian)
Beginning International Stage:
Tournaisian
Fraction Up In Beginning Stage:
66
Beginning Date:
351
Ending Stage in Treatise Usage:
Carboniferous (lower Visean)
Ending International Stage:
Visean
Fraction Up In Ending Stage:
33
Ending Date:
341.32
Description
Medium to large, externally similar to Syringothyris, ventral interarea high, flattened, usually procline, more rarely catacline to slightly apsacline, delthyrial plate large, slightly below plane of interarea, syrinx absent, position of adductor attachment unknown.