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Darwinuloides
Classification
Phylum:
Arthropoda
Subphylum:
Crustacea (superclass)
Class:
Ostracoda
Order:
Podocopida
Suborder:
Podocopina
Superfamily:
Darwinulacea
Family:
Darwinulidae
Formal Genus Name and Reference:
Darwinuloides MANDELSTAM, 1956
Type Species:
Darwinala otiformis MANDELSTAM, 1947
Images
(Click to enlarge in a new window)
Fig. 183,1. *D. oviformis (Mandelstam), 1a,b, RV lat., RV lat., X45 (50).
Synonyms
Geographic Distribution
Sib.(Kuznetzk Basin)
Age Range
Beginning Stage in Treatise Usage:
Perm.
Beginning International Stage:
Asselian
Fraction Up In Beginning Stage:
0
Beginning Date:
298.89
Ending Stage in Treatise Usage:
Trias.
Ending International Stage:
Rhaetian
Fraction Up In Ending Stage:
100
Ending Date:
201.36
Description
Shell ellipsoidal, ovoid, highly convex, LV larger than RV, anterior end more broadly rounded than posterior; dorsal margin convex or straight, ventral margin generally convex, but may be slightly concave medially, surface smooth; pore-canal zone not well developed; adductor muscle scar stated to be as in Darwintlla; hinge unknown; dorsally, valve edges depressed to form shallow groove along line of contact. [Fresh-water.]
References
Mandelstam, M. I., et al., 1956, Ostracoda: All-Union Sci. Res. Geol. Inst. (VSEGEI), Contr. Paleont., new ser., no. 12, Ostracodes, p. 87-144, pl. 19-27, fig. 16-53 (Moscow).
Museum or Author Information
Classification
Phylum:
Arthropoda
Subphylum:
Crustacea (superclass)
Class:
Ostracoda
Order:
Podocopida
Suborder:
Podocopina
Superfamily:
Darwinulacea
Family:
Darwinulidae
Formal Genus Name and Reference:
Darwinuloides MANDELSTAM, 1956
Type Species:
Darwinala otiformis MANDELSTAM, 1947
Images
(Click to enlarge in a new window)
Fig. 183,1. *D. oviformis (Mandelstam), 1a,b, RV lat., RV lat., X45 (50).
Synonyms
Geographic Distribution
Sib.(Kuznetzk Basin)
Age Range
Beginning Stage in Treatise Usage:
Perm.
Beginning International Stage:
Asselian
Fraction Up In Beginning Stage:
0
Beginning Date:
298.89
Ending Stage in Treatise Usage:
Trias.
Ending International Stage:
Rhaetian
Fraction Up In Ending Stage:
100
Ending Date:
201.36
Description
Shell ellipsoidal, ovoid, highly convex, LV larger than RV, anterior end more broadly rounded than posterior; dorsal margin convex or straight, ventral margin generally convex, but may be slightly concave medially, surface smooth; pore-canal zone not well developed; adductor muscle scar stated to be as in Darwintlla; hinge unknown; dorsally, valve edges depressed to form shallow groove along line of contact. [Fresh-water.]
References
Mandelstam, M. I., et al., 1956, Ostracoda: All-Union Sci. Res. Geol. Inst. (VSEGEI), Contr. Paleont., new ser., no. 12, Ostracodes, p. 87-144, pl. 19-27, fig. 16-53 (Moscow).