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Crassilasma
Classification
Phylum:
Cnidaria
Class:
Anthozoa
Subclass:
Rugosa
Order:
Stauriida
Suborder:
Streptelasmatina
Family:
Streptelasmatidae
Subfamily:
Dinophyllinae
Formal Genus Name and Reference:
Crassilasma IVANOVSKIY, 1962, p. 126
Type Species:
C. simplex, OD, 68b, coll. 2, SNIIGGIMS, Novosibirsk, holotype lost, neotype, 71, coll. 305, IGG, Novosibirsk, by IVANOVSKIY, 1976, p. 47
Images
(Click to enlarge in a new window)
Fig. 91,3a-d. ·C. simplex, up. Llandov., Asia, R. Moyero; a, long., bod, transv. sees., X2 (Ivanovskiy, 1962).
Synonyms
Geographic Distribution
Asia (Sib.Platf.-Szechwan)- ?Eu. (U.K.-Vay- gach I.)
Age Range
Beginning Stage in Treatise Usage:
L. Sil.
Beginning International Stage:
Rhuddanian
Fraction Up In Beginning Stage:
0
Beginning Date:
443.07
Ending Stage in Treatise Usage:
L. Sil.
Ending International Stage:
Homerian
Fraction Up In Ending Stage:
100
Ending Date:
426.74
Description
Corallum solitary, major septa long, thick, and radially arranged peripherally, but thinning somewhat and twirling adaxially in groups; minor septa rudimentary; [presence or absence of axial septal lobes unclear]; fossula indistinct; tabulae sparse, flat or slightly concave or convex; dissepiments absent.
References
Museum or Author Information
Classification
Phylum:
Cnidaria
Class:
Anthozoa
Subclass:
Rugosa
Order:
Stauriida
Suborder:
Streptelasmatina
Family:
Streptelasmatidae
Subfamily:
Dinophyllinae
Formal Genus Name and Reference:
Crassilasma IVANOVSKIY, 1962, p. 126
Type Species:
C. simplex, OD, 68b, coll. 2, SNIIGGIMS, Novosibirsk, holotype lost, neotype, 71, coll. 305, IGG, Novosibirsk, by IVANOVSKIY, 1976, p. 47
Images
(Click to enlarge in a new window)
Fig. 91,3a-d. ·C. simplex, up. Llandov., Asia, R. Moyero; a, long., bod, transv. sees., X2 (Ivanovskiy, 1962).
Synonyms
Geographic Distribution
Asia (Sib.Platf.-Szechwan)- ?Eu. (U.K.-Vay- gach I.)
Age Range
Beginning Stage in Treatise Usage:
L. Sil.
Beginning International Stage:
Rhuddanian
Fraction Up In Beginning Stage:
0
Beginning Date:
443.07
Ending Stage in Treatise Usage:
L. Sil.
Ending International Stage:
Homerian
Fraction Up In Ending Stage:
100
Ending Date:
426.74
Description
Corallum solitary, major septa long, thick, and radially arranged peripherally, but thinning somewhat and twirling adaxially in groups; minor septa rudimentary; [presence or absence of axial septal lobes unclear]; fossula indistinct; tabulae sparse, flat or slightly concave or convex; dissepiments absent.