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Volsellina
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Pteriomorphia
Order:
Mytiloida
Superfamily:
Mytilacea (mussels)
Family:
Mytilidae
Subfamily:
Modiolinae
Formal Genus Name and Reference:
Volsellina NEWELL, 1942, p. 42
Type Species:
Pleurophorus subellipticus MEEK, 1867, OD
Images
(Click to enlarge in a new window)
Fig. C21,3. *V. subelliptica (MEEK), U.Penn.(Willard Sh.), Neb.; RV ext., X2 (666)
Synonyms
Geographic Distribution
N.Am.
Age Range
Beginning Stage in Treatise Usage:
Penn.
Beginning International Stage:
Bashkirian
Fraction Up In Beginning Stage:
0
Beginning Date:
323.4
Ending Stage in Treatise Usage:
Perm.
Ending International Stage:
Changhsingian
Fraction Up In Ending Stage:
100
Ending Date:
251.9
Description
Thin, elongate, flattened, beaks subterminal, anterior lobe extending slightly ahead of beaks, anterior sulcus obscure, umbonal ridge narrow, edentulous
References
Newell, N. D., 1942, Late Paleozoic pelecypods: Mytilacea: Kansas State Geol. Survey, Publ., v. 10, no. 2, 115 p., 20 pl .
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Pteriomorphia
Order:
Mytiloida
Superfamily:
Mytilacea (mussels)
Family:
Mytilidae
Subfamily:
Modiolinae
Formal Genus Name and Reference:
Volsellina NEWELL, 1942, p. 42
Type Species:
Pleurophorus subellipticus MEEK, 1867, OD
Images
(Click to enlarge in a new window)
Fig. C21,3. *V. subelliptica (MEEK), U.Penn.(Willard Sh.), Neb.; RV ext., X2 (666)
Synonyms
Geographic Distribution
N.Am.
Age Range
Beginning Stage in Treatise Usage:
Penn.
Beginning International Stage:
Bashkirian
Fraction Up In Beginning Stage:
0
Beginning Date:
323.4
Ending Stage in Treatise Usage:
Perm.
Ending International Stage:
Changhsingian
Fraction Up In Ending Stage:
100
Ending Date:
251.9
Description
Thin, elongate, flattened, beaks subterminal, anterior lobe extending slightly ahead of beaks, anterior sulcus obscure, umbonal ridge narrow, edentulous
References
Newell, N. D., 1942, Late Paleozoic pelecypods: Mytilacea: Kansas State Geol. Survey, Publ., v. 10, no. 2, 115 p., 20 pl .