Welcome to the Treatise on Invertebrate Paleontology!
Please enter a genera name to retrieve more information.
Unio
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:
Unio PHILIPSSON, 1788
Type Species:
Mya pictorum Linné, 1758, SD Turton, 1831 (ICZN, 1957, Opinion 495, p. 289)
Images
(Click to enlarge in a new window)
Fig. D17, 5. *U. (U.) pictorum (LinnÉ), Rec., Eu., LV ext., X0.7 (after 497).
Synonyms
Geographic Distribution
Eu.-Asia-Afr.
Age Range
Beginning Stage in Treatise Usage:
Trias.
Beginning International Stage:
Induan
Fraction Up In Beginning Stage:
0
Beginning Date:
251.9
Ending Stage in Treatise Usage:
Rec.
Ending International Stage:
Meghalayan
Fraction Up In Ending Stage:
100
Ending Date:
0
Description
Posterior slope generally distinct, coarse ridges on umbo looped or broken, remainder of shell smooth, periostracum with or without rays. Marsupium occupying whole length of outer gill pairs.
References
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:
Unio PHILIPSSON, 1788
Type Species:
Mya pictorum Linné, 1758, SD Turton, 1831 (ICZN, 1957, Opinion 495, p. 289)
Images
(Click to enlarge in a new window)
Fig. D17, 5. *U. (U.) pictorum (LinnÉ), Rec., Eu., LV ext., X0.7 (after 497).
Synonyms
Geographic Distribution
Eu.-Asia-Afr.
Age Range
Beginning Stage in Treatise Usage:
Trias.
Beginning International Stage:
Induan
Fraction Up In Beginning Stage:
0
Beginning Date:
251.9
Ending Stage in Treatise Usage:
Rec.
Ending International Stage:
Meghalayan
Fraction Up In Ending Stage:
100
Ending Date:
0
Description
Posterior slope generally distinct, coarse ridges on umbo looped or broken, remainder of shell smooth, periostracum with or without rays. Marsupium occupying whole length of outer gill pairs.