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Otospirifer
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Spiriferida
Superfamily:
Delthyriodoidea
Family:
Hysterolitidae
Formal Genus Name and Reference:
Otospirifer Hou & XIAN, 1975, p. 65
Type Species:
O. shipaiensis, OD
Images
(Click to enlarge in a new window)
Fig. 1216a–b. *O. shipaiensis, upper Emsian; a, dorsal view, ×1.5; b, exterior showing fine ornament, ×5 (new).
Synonyms
Geographic Distribution
southern China
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:
Lower Devonian (Emsian)
Ending International Stage:
Emsian
Fraction Up In Ending Stage:
100
Ending Date:
394.3
Description
Medium to large, transverse, with acute cardinal angles, ventral interarea low, apsacline, fold and sulcus smooth, lateral plications numerous, simple, concentric lamellae with double rows of granules, long, divergent dental plates present, with some umbonal callus, ctenophoridium broad, crural plates lacking.
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Spiriferida
Superfamily:
Delthyriodoidea
Family:
Hysterolitidae
Formal Genus Name and Reference:
Otospirifer Hou & XIAN, 1975, p. 65
Type Species:
O. shipaiensis, OD
Images
(Click to enlarge in a new window)
Fig. 1216a–b. *O. shipaiensis, upper Emsian; a, dorsal view, ×1.5; b, exterior showing fine ornament, ×5 (new).
Synonyms
Geographic Distribution
southern China
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:
Lower Devonian (Emsian)
Ending International Stage:
Emsian
Fraction Up In Ending Stage:
100
Ending Date:
394.3
Description
Medium to large, transverse, with acute cardinal angles, ventral interarea low, apsacline, fold and sulcus smooth, lateral plications numerous, simple, concentric lamellae with double rows of granules, long, divergent dental plates present, with some umbonal callus, ctenophoridium broad, crural plates lacking.