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Tutuella
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Palaeoheterodonta
Order:
Unionoida (Freshwater mussels and relatives)
Superfamily:
Anthracosiacea
Family:
Pseudocardiniidae
Formal Genus Name and Reference:
Tutuella LUMKEVICH et al., 1960, p. 99
Type Species:
T. chachlovi RAGOZIN, 1938; OD
Images
(Click to enlarge in a new window)
Fig. D13,3. *T. crassa Ragozin, M.Jur., Chulimo-YenisE1 basin, C.Asia, LV ext., X1 (Lebedev, 1958).
Synonyms
Geographic Distribution
USSR(Sib.), C.Asia, E.Asia
Age Range
Beginning Stage in Treatise Usage:
L.Jur.
Beginning International Stage:
Hettangian
Fraction Up In Beginning Stage:
0
Beginning Date:
201.36
Ending Stage in Treatise Usage:
M.Jur.
Ending International Stage:
Callovian
Fraction Up In Ending Stage:
100
Ending Date:
161.53
Description
Shell about 10 to 20 mm long when full-grown, ovate, subequilateral, more strongly convex than Ferganoconcha and with more protruding umbones, hinge line straight, dentition unknown, growth lines inconspicuous
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Palaeoheterodonta
Order:
Unionoida (Freshwater mussels and relatives)
Superfamily:
Anthracosiacea
Family:
Pseudocardiniidae
Formal Genus Name and Reference:
Tutuella LUMKEVICH et al., 1960, p. 99
Type Species:
T. chachlovi RAGOZIN, 1938; OD
Images
(Click to enlarge in a new window)
Fig. D13,3. *T. crassa Ragozin, M.Jur., Chulimo-YenisE1 basin, C.Asia, LV ext., X1 (Lebedev, 1958).
Synonyms
Geographic Distribution
USSR(Sib.), C.Asia, E.Asia
Age Range
Beginning Stage in Treatise Usage:
L.Jur.
Beginning International Stage:
Hettangian
Fraction Up In Beginning Stage:
0
Beginning Date:
201.36
Ending Stage in Treatise Usage:
M.Jur.
Ending International Stage:
Callovian
Fraction Up In Ending Stage:
100
Ending Date:
161.53
Description
Shell about 10 to 20 mm long when full-grown, ovate, subequilateral, more strongly convex than Ferganoconcha and with more protruding umbones, hinge line straight, dentition unknown, growth lines inconspicuous