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Indospirifer
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Spiriferida
Superfamily:
Alolfioidea
Family:
Echinospiriferidae
Formal Genus Name and Reference:
Indospirifer GRABAU, 1931b, p. 359
Type Species:
Spirifer padaukpinensis REED, 1908, p. 101, OD
Images
(Click to enlarge in a new window)
Fig. 1120, 2a-f. *I. padaukpinensis (Reed), Eifelian, Burma, a-c, ventral, posterior, and anterior views, X2, d, ventral sulcus showing capillae, X5, e-f, dorsal and posterior views of internal mold, ×2 (Anderson, Boucot, & Johnson, 1969).
Synonyms
Schizospirifer
Geographic Distribution
Salair, Guangxi, northern Vietnam, Burma
Age Range
Beginning Stage in Treatise Usage:
Lower Devonian (Emsian)
Beginning International Stage:
Emsian
Fraction Up In Beginning Stage:
0
Beginning Date:
410.51
Ending Stage in Treatise Usage:
Middle Devonian (lower Givetian)
Ending International Stage:
Givetian
Fraction Up In Ending Stage:
35
Ending Date:
383.06
Description
Medium size, ventribiconvex, transverse, with obtuse or acute cardinal angles, ventral interarea curved, apsacline to nearly orthocline, fold and sulcus prominent, with small, nonradial plications, flanks with rounded, elevated plications, commonly simple, less commonly branching, microornament of prominent growth lines anteriorly and subradial capillae, delthyrial cavity with some callus, dental plates extrasinal, short crural plates converging anterodorsally that may be obscured by callus and elevated ctenophoridium. Lower Devonian (Emsian)-Middle Devonian (lower Givetian): Salair, Guangxi, northern Vietnam, Burma.
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Spiriferida
Superfamily:
Alolfioidea
Family:
Echinospiriferidae
Formal Genus Name and Reference:
Indospirifer GRABAU, 1931b, p. 359
Type Species:
Spirifer padaukpinensis REED, 1908, p. 101, OD
Images
(Click to enlarge in a new window)
Fig. 1120, 2a-f. *I. padaukpinensis (Reed), Eifelian, Burma, a-c, ventral, posterior, and anterior views, X2, d, ventral sulcus showing capillae, X5, e-f, dorsal and posterior views of internal mold, ×2 (Anderson, Boucot, & Johnson, 1969).
Synonyms
Schizospirifer
Geographic Distribution
Salair, Guangxi, northern Vietnam, Burma
Age Range
Beginning Stage in Treatise Usage:
Lower Devonian (Emsian)
Beginning International Stage:
Emsian
Fraction Up In Beginning Stage:
0
Beginning Date:
410.51
Ending Stage in Treatise Usage:
Middle Devonian (lower Givetian)
Ending International Stage:
Givetian
Fraction Up In Ending Stage:
35
Ending Date:
383.06
Description
Medium size, ventribiconvex, transverse, with obtuse or acute cardinal angles, ventral interarea curved, apsacline to nearly orthocline, fold and sulcus prominent, with small, nonradial plications, flanks with rounded, elevated plications, commonly simple, less commonly branching, microornament of prominent growth lines anteriorly and subradial capillae, delthyrial cavity with some callus, dental plates extrasinal, short crural plates converging anterodorsally that may be obscured by callus and elevated ctenophoridium. Lower Devonian (Emsian)-Middle Devonian (lower Givetian): Salair, Guangxi, northern Vietnam, Burma.