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Asoella
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Pteriomorphia
Order:
Pterioida
Suborder:
Pteriina
Superfamily:
Pectinacea (scallops and relatives)
Family:
Aviculopectinidae
Subfamily:
Aviculopectininae
Formal Genus Name and Reference:
Asoella TOKUYAMA, 1959, p. 2
Type Species:
Eumorphotis (A.) confertoradiata, OD
Images
(Click to enlarge in a new window)
Fig. C60,2. A. laevigata (Токиуnam), 2 a-c, LV ext., dorsal part RV ext., int., all X6 (Tokuyama, 1959).
Synonyms
Geographic Distribution
Japan
Age Range
Beginning Stage in Treatise Usage:
U.Trias.(Nor.)
Beginning International Stage:
Norian
Fraction Up In Beginning Stage:
0
Beginning Date:
227.3
Ending Stage in Treatise Usage:
U.Trias.(Nor.)
Ending International Stage:
Norian
Fraction Up In Ending Stage:
100
Ending Date:
205.74
Description
Small (height ca. 10 mm .), quadrately suborbicular, almost acline, LV strongly convex, with broadly rounded, projecting umbo, RV feebly convex, wings of LV and right posterior wing subequal, obtuse or slightly acute, not well delimited, marginal sinus below each shallow or absent, right anterior auricle almost as long as posterior wing, subauricular notch relatively shallow, surface with fine radial riblets or smooth
References
\& Tokuyama, Akira, 1959, Daonella in Japan: Univ. Tokyo, Jour. Fac. Sci., sec. 2, v. 12, pt. 1, p. 1-30.
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Pteriomorphia
Order:
Pterioida
Suborder:
Pteriina
Superfamily:
Pectinacea (scallops and relatives)
Family:
Aviculopectinidae
Subfamily:
Aviculopectininae
Formal Genus Name and Reference:
Asoella TOKUYAMA, 1959, p. 2
Type Species:
Eumorphotis (A.) confertoradiata, OD
Images
(Click to enlarge in a new window)
Fig. C60,2. A. laevigata (Токиуnam), 2 a-c, LV ext., dorsal part RV ext., int., all X6 (Tokuyama, 1959).
Synonyms
Geographic Distribution
Japan
Age Range
Beginning Stage in Treatise Usage:
U.Trias.(Nor.)
Beginning International Stage:
Norian
Fraction Up In Beginning Stage:
0
Beginning Date:
227.3
Ending Stage in Treatise Usage:
U.Trias.(Nor.)
Ending International Stage:
Norian
Fraction Up In Ending Stage:
100
Ending Date:
205.74
Description
Small (height ca. 10 mm .), quadrately suborbicular, almost acline, LV strongly convex, with broadly rounded, projecting umbo, RV feebly convex, wings of LV and right posterior wing subequal, obtuse or slightly acute, not well delimited, marginal sinus below each shallow or absent, right anterior auricle almost as long as posterior wing, subauricular notch relatively shallow, surface with fine radial riblets or smooth
References
\& Tokuyama, Akira, 1959, Daonella in Japan: Univ. Tokyo, Jour. Fac. Sci., sec. 2, v. 12, pt. 1, p. 1-30.