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Protelliptio
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Palaeoheterodonta
Order:
Unionoida (Freshwater mussels and relatives)
Superfamily:
Unionacea (freshwater mussels)
Family:
Unionidae
Subfamily:
Unioninae
Formal Genus Name and Reference:
Protelliptio RUSSELL, 1934
Type Species:
Unio biornatus RUSSELL, 1932, OD
Images
(Click to enlarge in a new window)
Synonyms
Geographic Distribution
N.Am.
Age Range
Beginning Stage in Treatise Usage:
L.Cret.
Beginning International Stage:
Berriasian
Fraction Up In Beginning Stage:
0
Beginning Date:
143.1
Ending Stage in Treatise Usage:
Paleoc.
Ending International Stage:
Thanetian
Fraction Up In Ending Stage:
100
Ending Date:
56
Description
Medium-sized, elongate-ovoid, beaks low, sculptured with numerous regular concentric or double-looped plications, 2 somewhat divergent lines directed posteroventrally
References
Russell, L. S., 1934, Reclassification of the fossil Unionidae (fresh-water mussels) of western Canada: Canad. Field Nat., v. 48, p. 1-4.
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Palaeoheterodonta
Order:
Unionoida (Freshwater mussels and relatives)
Superfamily:
Unionacea (freshwater mussels)
Family:
Unionidae
Subfamily:
Unioninae
Formal Genus Name and Reference:
Protelliptio RUSSELL, 1934
Type Species:
Unio biornatus RUSSELL, 1932, OD
Images
(Click to enlarge in a new window)Synonyms
Geographic Distribution
N.Am.
Age Range
Beginning Stage in Treatise Usage:
L.Cret.
Beginning International Stage:
Berriasian
Fraction Up In Beginning Stage:
0
Beginning Date:
143.1
Ending Stage in Treatise Usage:
Paleoc.
Ending International Stage:
Thanetian
Fraction Up In Ending Stage:
100
Ending Date:
56
Description
Medium-sized, elongate-ovoid, beaks low, sculptured with numerous regular concentric or double-looped plications, 2 somewhat divergent lines directed posteroventrally
References
Russell, L. S., 1934, Reclassification of the fossil Unionidae (fresh-water mussels) of western Canada: Canad. Field Nat., v. 48, p. 1-4.