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Ilmeniopsis
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Spiriferida
Superfamily:
Ambocoelioidea
Family:
Ambocoeliidae
Formal Genus Name and Reference:
Ilmeniopsis XIAN, 1983a, p. 15
Type Species:
I. changtangensis, OD
Images
(Click to enlarge in a new window)
Fig. 1141, 3a-c. * I. changtangensis, posterior, lateral, and anterior views, X1 (new).
Synonyms
Geographic Distribution
southern China
Age Range
Beginning Stage in Treatise Usage:
Middle Devonian (Givetian)
Beginning International Stage:
Givetian
Fraction Up In Beginning Stage:
0
Beginning Date:
385.3
Ending Stage in Treatise Usage:
Middle Devonian (Givetian)
Ending International Stage:
Givetian
Fraction Up In Ending Stage:
100
Ending Date:
378.9
Description
Ventribiconvex, submegathyrid, ventral interarea low, incurved, commissure straight, faint concentric growth lines, dental plates short, crural plates short, discrete, connected posteriorly by suspended inner hinge plates
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Spiriferida
Superfamily:
Ambocoelioidea
Family:
Ambocoeliidae
Formal Genus Name and Reference:
Ilmeniopsis XIAN, 1983a, p. 15
Type Species:
I. changtangensis, OD
Images
(Click to enlarge in a new window)
Fig. 1141, 3a-c. * I. changtangensis, posterior, lateral, and anterior views, X1 (new).
Synonyms
Geographic Distribution
southern China
Age Range
Beginning Stage in Treatise Usage:
Middle Devonian (Givetian)
Beginning International Stage:
Givetian
Fraction Up In Beginning Stage:
0
Beginning Date:
385.3
Ending Stage in Treatise Usage:
Middle Devonian (Givetian)
Ending International Stage:
Givetian
Fraction Up In Ending Stage:
100
Ending Date:
378.9
Description
Ventribiconvex, submegathyrid, ventral interarea low, incurved, commissure straight, faint concentric growth lines, dental plates short, crural plates short, discrete, connected posteriorly by suspended inner hinge plates