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Pseudoavonia
Classification
Phylum:
Brachiopoda
Class:
Strophomenata
Order:
Productida
Superfamily:
Productoidea
Family:
Productellidae
Formal Genus Name and Reference:
Pseudoavonia Wang in Zhang, Fu, & DING, 1983, p. 312
Type Species:
Avonia lopingensiformis Ustritsky in Ustritsky, Hu, & CHAN, 1960, p. 28, OD
Images
(Click to enlarge in a new window)
Fig. 286, 6a, b. *P. lopingensiformis (Ustritsky), Chihsian, Xinjiang, ventral valve viewed anteriorly, posteriorly, X1 (Zhang, Fu, & Ding, 1983).
Synonyms
Geographic Distribution
China
Age Range
Beginning Stage in Treatise Usage:
Lower Permian (Artinskian)
Beginning International Stage:
Artinskian
Fraction Up In Beginning Stage:
0
Beginning Date:
290.51
Ending Stage in Treatise Usage:
Lower Permian (Artinskian)
Ending International Stage:
Artinskian
Fraction Up In Ending Stage:
100
Ending Date:
283.3
Description
Poorly known, resembles Costispinifera, but lacks concentric ornament on ventral umbo, perhaps fewer dorsal spines, apparently has stronger marginal ridges at sides of dorsal disk. Lower Permian (Artinskian): China.
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Class:
Strophomenata
Order:
Productida
Superfamily:
Productoidea
Family:
Productellidae
Formal Genus Name and Reference:
Pseudoavonia Wang in Zhang, Fu, & DING, 1983, p. 312
Type Species:
Avonia lopingensiformis Ustritsky in Ustritsky, Hu, & CHAN, 1960, p. 28, OD
Images
(Click to enlarge in a new window)
Fig. 286, 6a, b. *P. lopingensiformis (Ustritsky), Chihsian, Xinjiang, ventral valve viewed anteriorly, posteriorly, X1 (Zhang, Fu, & Ding, 1983).
Synonyms
Geographic Distribution
China
Age Range
Beginning Stage in Treatise Usage:
Lower Permian (Artinskian)
Beginning International Stage:
Artinskian
Fraction Up In Beginning Stage:
0
Beginning Date:
290.51
Ending Stage in Treatise Usage:
Lower Permian (Artinskian)
Ending International Stage:
Artinskian
Fraction Up In Ending Stage:
100
Ending Date:
283.3
Description
Poorly known, resembles Costispinifera, but lacks concentric ornament on ventral umbo, perhaps fewer dorsal spines, apparently has stronger marginal ridges at sides of dorsal disk. Lower Permian (Artinskian): China.