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Eospiriferina
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Spiriferida
Superfamily:
Alolfioidea
Family:
Adolfiidae
Formal Genus Name and Reference:
Eospiriferina GRABAU, 1931b, p. 494
Type Species:
*Spiriferina (E.) lachrymosa, OD
Images
(Click to enlarge in a new window)
Fig. 1113, 3a-c. * E. lachrymosa Grabau, Eifelian, a-b, ventral and dorsal internal molds, × 2, c, exterior showing fine ornament, × 5 (new).
Synonyms
Geographic Distribution
southern China (Guangxi)
Age Range
Beginning Stage in Treatise Usage:
Lower Devonian (upper Emsian)
Beginning International Stage:
Emsian
Fraction Up In Beginning Stage:
66
Beginning Date:
399.81
Ending Stage in Treatise Usage:
Middle Devonian (Eifelian)
Ending International Stage:
Eifelian
Fraction Up In Ending Stage:
100
Ending Date:
385.3
Description
Medium size, biconvex, slightly transverse, with obtuse cardinal angles, ventral interarea curved, apsacline, fold and sulcus smooth, flanks with a few strong, rounded plications separated by U-shaped interspaces, microornament of oval to elongate-oval pustules arranged quincuncially or subradially, strong, thin, intrasinal dental plates present, anteriorly convergent crural plates present
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Spiriferida
Superfamily:
Alolfioidea
Family:
Adolfiidae
Formal Genus Name and Reference:
Eospiriferina GRABAU, 1931b, p. 494
Type Species:
*Spiriferina (E.) lachrymosa, OD
Images
(Click to enlarge in a new window)
Fig. 1113, 3a-c. * E. lachrymosa Grabau, Eifelian, a-b, ventral and dorsal internal molds, × 2, c, exterior showing fine ornament, × 5 (new).
Synonyms
Geographic Distribution
southern China (Guangxi)
Age Range
Beginning Stage in Treatise Usage:
Lower Devonian (upper Emsian)
Beginning International Stage:
Emsian
Fraction Up In Beginning Stage:
66
Beginning Date:
399.81
Ending Stage in Treatise Usage:
Middle Devonian (Eifelian)
Ending International Stage:
Eifelian
Fraction Up In Ending Stage:
100
Ending Date:
385.3
Description
Medium size, biconvex, slightly transverse, with obtuse cardinal angles, ventral interarea curved, apsacline, fold and sulcus smooth, flanks with a few strong, rounded plications separated by U-shaped interspaces, microornament of oval to elongate-oval pustules arranged quincuncially or subradially, strong, thin, intrasinal dental plates present, anteriorly convergent crural plates present