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Elymospirifer
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Spiriferida
Superfamily:
Delthyriodoidea
Family:
Acrospiriferidae
Formal Genus Name and Reference:
Elymospirifer Wang in Wang, Yu, & WU, 1974, p. 40
Type Species:
Indospirifer kwangsiensis HOU, 1959b, p. 458, OD
Images
(Click to enlarge in a new window)
Fig. 1223, 3a-e. * E. k w a n g s i e n s i s (HOU), southern China, a-d, ventral, dorsal, anterior, and side views, X1.5, e, exterior showing fine ornament, X5 (Wang & Rong, 1986).
Synonyms
Geographic Distribution
Taimyr, southern China
Age Range
Beginning Stage in Treatise Usage:
Lower Devonian (lower Emsian)
Beginning International Stage:
Emsian
Fraction Up In Beginning Stage:
0
Beginning Date:
410.51
Ending Stage in Treatise Usage:
Lower Devonian (lower Emsian)
Ending International Stage:
Emsian
Fraction Up In Ending Stage:
33
Ending Date:
405.16
Description
Medium to large, biconvex, transversely quadrate, ventral interarea curved, apsacline, fold, sulcus, and flanks with numerous bifurcating plications of U-shaped cross section and U-shaped interspaces, microornament of variably developed radial lirae interrupted by fine growth lines, dental plates long, extrasinal, without umbonal callus, ctenophoridium bilobed, short crural plates present
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Spiriferida
Superfamily:
Delthyriodoidea
Family:
Acrospiriferidae
Formal Genus Name and Reference:
Elymospirifer Wang in Wang, Yu, & WU, 1974, p. 40
Type Species:
Indospirifer kwangsiensis HOU, 1959b, p. 458, OD
Images
(Click to enlarge in a new window)
Fig. 1223, 3a-e. * E. k w a n g s i e n s i s (HOU), southern China, a-d, ventral, dorsal, anterior, and side views, X1.5, e, exterior showing fine ornament, X5 (Wang & Rong, 1986).
Synonyms
Geographic Distribution
Taimyr, southern China
Age Range
Beginning Stage in Treatise Usage:
Lower Devonian (lower Emsian)
Beginning International Stage:
Emsian
Fraction Up In Beginning Stage:
0
Beginning Date:
410.51
Ending Stage in Treatise Usage:
Lower Devonian (lower Emsian)
Ending International Stage:
Emsian
Fraction Up In Ending Stage:
33
Ending Date:
405.16
Description
Medium to large, biconvex, transversely quadrate, ventral interarea curved, apsacline, fold, sulcus, and flanks with numerous bifurcating plications of U-shaped cross section and U-shaped interspaces, microornament of variably developed radial lirae interrupted by fine growth lines, dental plates long, extrasinal, without umbonal callus, ctenophoridium bilobed, short crural plates present