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Arcestes
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Ceratitida
Superfamily:
Arcestaceae
Family:
Arcestidae
Formal Genus Name and Reference:
Arcestes SUESS, 1865
Type Species:
Am. galeiformis Hauer, 1850 (pro Am. galeatus Hauer, 1846, non von Вuch), SD MOJS., 1893
Images
(Click to enlarge in a new window)
Fig. 208,1d,e. A. (A.) intuslabiatus Mojs., Nor., Alps, 1d, x0.7, le, x1 (743*), Fig. 208,1c. A. (A.) gigantogaleatus Mojs., Nor., Alps, x0.25 (584*), Fig. 208,1a. A. (A.) pinacostomus Diener, Carn., Alps, x0.5 (584*), Fig. 208,1b. A. (A.) colonus Mojs., Carn., Alps, x0.5 (584*)
Synonyms
Geographic Distribution
cosmop
Age Range
Beginning Stage in Treatise Usage:
M.Trias.(Anis.)
Beginning International Stage:
Anisian
Fraction Up In Beginning Stage:
0
Beginning Date:
246.7
Ending Stage in Treatise Usage:
U.Trias.(Rhaet.)
Ending International Stage:
Rhaetian
Fraction Up In Ending Stage:
100
Ending Date:
201.36
Description
Smooth many-whorled ammonites with long body chambers and modified peristomes; constrictions and flared ribs may be present. Suture ammonitic, lobes and sad- dles triangular, septa closely spaced
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Ceratitida
Superfamily:
Arcestaceae
Family:
Arcestidae
Formal Genus Name and Reference:
Arcestes SUESS, 1865
Type Species:
Am. galeiformis Hauer, 1850 (pro Am. galeatus Hauer, 1846, non von Вuch), SD MOJS., 1893
Images
(Click to enlarge in a new window)
Fig. 208,1d,e. A. (A.) intuslabiatus Mojs., Nor., Alps, 1d, x0.7, le, x1 (743*), Fig. 208,1c. A. (A.) gigantogaleatus Mojs., Nor., Alps, x0.25 (584*), Fig. 208,1a. A. (A.) pinacostomus Diener, Carn., Alps, x0.5 (584*), Fig. 208,1b. A. (A.) colonus Mojs., Carn., Alps, x0.5 (584*)
Synonyms
Geographic Distribution
cosmop
Age Range
Beginning Stage in Treatise Usage:
M.Trias.(Anis.)
Beginning International Stage:
Anisian
Fraction Up In Beginning Stage:
0
Beginning Date:
246.7
Ending Stage in Treatise Usage:
U.Trias.(Rhaet.)
Ending International Stage:
Rhaetian
Fraction Up In Ending Stage:
100
Ending Date:
201.36
Description
Smooth many-whorled ammonites with long body chambers and modified peristomes; constrictions and flared ribs may be present. Suture ammonitic, lobes and sad- dles triangular, septa closely spaced