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Datta
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Pteriomorphia
Order:
Pterioida
Suborder:
Pteriina
Superfamily:
Pteriacea
Family:
Dattidae
Formal Genus Name and Reference:
Datta HEALEY, 1908, p. 64
Type Species:
D. oscillaris, OD
Images
(Click to enlarge in a new window)
Fig. C45,1. *D. oscillaris, la, LV int. mold, X2, 16 , wax squeeze, reproducing features of hinge, X4.5 (Healey, 1908)"
Synonyms
Geographic Distribution
Burma
Age Range
Beginning Stage in Treatise Usage:
U.Trias.(Rhaet.)
Beginning International Stage:
Rhaetian
Fraction Up In Beginning Stage:
0
Beginning Date:
205.74
Ending Stage in Treatise Usage:
U.Trias.(Rhaet.)
Ending International Stage:
Rhaetian
Fraction Up In Ending Stage:
100
Ending Date:
201.36
Description
Characters of family = Shell small, Pteria-like, known only by LV; posterior wing obtuse, no anterior auricle, anterodorsal angle rounded off, with external narrow ligamental area containing 2 ligamental pits, one below beak, other well posterior to it; spoonlike structure also present, possibly a chondrophore, projecting into shell cavity just in front of beak; elongate lateral tooth on posterior wing; adductor muscle scars and pallial line not observed.
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Pteriomorphia
Order:
Pterioida
Suborder:
Pteriina
Superfamily:
Pteriacea
Family:
Dattidae
Formal Genus Name and Reference:
Datta HEALEY, 1908, p. 64
Type Species:
D. oscillaris, OD
Images
(Click to enlarge in a new window)
Fig. C45,1. *D. oscillaris, la, LV int. mold, X2, 16 , wax squeeze, reproducing features of hinge, X4.5 (Healey, 1908)"
Synonyms
Geographic Distribution
Burma
Age Range
Beginning Stage in Treatise Usage:
U.Trias.(Rhaet.)
Beginning International Stage:
Rhaetian
Fraction Up In Beginning Stage:
0
Beginning Date:
205.74
Ending Stage in Treatise Usage:
U.Trias.(Rhaet.)
Ending International Stage:
Rhaetian
Fraction Up In Ending Stage:
100
Ending Date:
201.36
Description
Characters of family = Shell small, Pteria-like, known only by LV; posterior wing obtuse, no anterior auricle, anterodorsal angle rounded off, with external narrow ligamental area containing 2 ligamental pits, one below beak, other well posterior to it; spoonlike structure also present, possibly a chondrophore, projecting into shell cavity just in front of beak; elongate lateral tooth on posterior wing; adductor muscle scars and pallial line not observed.