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Guangxiispirifer
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Spiriferida
Superfamily:
Ambocoelioidea
Family:
Ambocoeliidae
Formal Genus Name and Reference:
Guangxiispirifer XIAN SI-YUAN, 1983a, p. 12
Type Species:
G. subaequatus Xian SI-YUAN, 1983a, p. 13, OD
Images
(Click to enlarge in a new window)
Fig. 1139, 3a-d. *G. subaequatus, Givetian, southern China, a-c, ventral, dorsal, and side views, X1 (new), d, interior of dorsal valve, X1 (Xian, 1983a).
Synonyms
Geographic Distribution
western Europe, southern China
Age Range
Beginning Stage in Treatise Usage:
Middle Devonian (Eifelian)
Beginning International Stage:
Eifelian
Fraction Up In Beginning Stage:
0
Beginning Date:
394.3
Ending Stage in Treatise Usage:
Middle Devonian (Givetian)
Ending International Stage:
Givetian
Fraction Up In Ending Stage:
100
Ending Date:
378.9
Description
Large, ventribiconvex, submegathyrid, ventral interarea high, curved, apsacline, with deltidial plates, dorsal interarea low, flat, anacline, fold and sulcus lacking, surface with concentric growth lines and capillae, strong dental flanges, inner hinge plates united into triangular platform, with prominent cardinal process
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Spiriferida
Superfamily:
Ambocoelioidea
Family:
Ambocoeliidae
Formal Genus Name and Reference:
Guangxiispirifer XIAN SI-YUAN, 1983a, p. 12
Type Species:
G. subaequatus Xian SI-YUAN, 1983a, p. 13, OD
Images
(Click to enlarge in a new window)
Fig. 1139, 3a-d. *G. subaequatus, Givetian, southern China, a-c, ventral, dorsal, and side views, X1 (new), d, interior of dorsal valve, X1 (Xian, 1983a).
Synonyms
Geographic Distribution
western Europe, southern China
Age Range
Beginning Stage in Treatise Usage:
Middle Devonian (Eifelian)
Beginning International Stage:
Eifelian
Fraction Up In Beginning Stage:
0
Beginning Date:
394.3
Ending Stage in Treatise Usage:
Middle Devonian (Givetian)
Ending International Stage:
Givetian
Fraction Up In Ending Stage:
100
Ending Date:
378.9
Description
Large, ventribiconvex, submegathyrid, ventral interarea high, curved, apsacline, with deltidial plates, dorsal interarea low, flat, anacline, fold and sulcus lacking, surface with concentric growth lines and capillae, strong dental flanges, inner hinge plates united into triangular platform, with prominent cardinal process