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Calliptychoceras
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Ammonitida
Superfamily:
Perisphinctaceae
Family:
Neocomitidae
Formal Genus Name and Reference:
Calliptychoceras SPATH, 1924a, p. 88
Type Species:
Neocomites calliptychus UHLIG, 1910a, p. 251, M
Images
(Click to enlarge in a new window)
Fig. 40, 1a, b. *C. calliptychum (Uhlig), Valanginian, India (Spiti Valley), X0.7 (Uhlig, 1910a).
Synonyms
Geographic Distribution
Madagascar, India
Age Range
Beginning Stage in Treatise Usage:
Lower Cretaceous (Berriasian)
Beginning International Stage:
Berriasian
Fraction Up In Beginning Stage:
0
Beginning Date:
143.1
Ending Stage in Treatise Usage:
Lower Cretaceous (Valanginian)
Ending International Stage:
Valanginian
Fraction Up In Ending Stage:
100
Ending Date:
132.6
Description
More evolute and inflated than Neocomites, with sinuous ribs, fine at first, coarse later, branching from distinct umbilical tubercles, most branching again at midflank, with slight, sharp, oblique ventrolateral bullae bordering smooth venter
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Ammonitida
Superfamily:
Perisphinctaceae
Family:
Neocomitidae
Formal Genus Name and Reference:
Calliptychoceras SPATH, 1924a, p. 88
Type Species:
Neocomites calliptychus UHLIG, 1910a, p. 251, M
Images
(Click to enlarge in a new window)
Fig. 40, 1a, b. *C. calliptychum (Uhlig), Valanginian, India (Spiti Valley), X0.7 (Uhlig, 1910a).
Synonyms
Geographic Distribution
Madagascar, India
Age Range
Beginning Stage in Treatise Usage:
Lower Cretaceous (Berriasian)
Beginning International Stage:
Berriasian
Fraction Up In Beginning Stage:
0
Beginning Date:
143.1
Ending Stage in Treatise Usage:
Lower Cretaceous (Valanginian)
Ending International Stage:
Valanginian
Fraction Up In Ending Stage:
100
Ending Date:
132.6
Description
More evolute and inflated than Neocomites, with sinuous ribs, fine at first, coarse later, branching from distinct umbilical tubercles, most branching again at midflank, with slight, sharp, oblique ventrolateral bullae bordering smooth venter