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Erymnoceras
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Order:
Ceratitida
Suborder:
Ammonitina
Superfamily:
Steogabicerataceae
Family:
Pachyceratidae
Formal Genus Name and Reference:
Erymnoceras HYATT, 1900
Type Species:
Am. coronatus BruGUiÈre in D'ORBIGNY, 1848
Images
(Click to enlarge in a new window)
Fig. 357,2. *E. (E.) coronatum (Brug.), Fr., x0.12 (330*)"
Synonyms
Doliolumites
Geographic Distribution
Eu.-N.Afr.-Syria-C.Arabia-Crimea-Cauc.-C.Russia-Persia-Cutch-Mex.
Age Range
Beginning Stage in Treatise Usage:
M.Jur.(M. Callov.)
Beginning International Stage:
Callovian
Fraction Up In Beginning Stage:
50
Beginning Date:
163.41
Ending Stage in Treatise Usage:
M.Jur.(M. Callov.)
Ending International Stage:
Callovian
Fraction Up In Ending Stage:
70
Ending Date:
162.66
Description
Coronate, with tuberculate umbilical edge and strong ribbing, resembling inner whorls of Teloceras and Tulites. Outer whorl may become smooth and contracted.
References
Hyatt, Alpheus, 1900, Cephalopoda: in Zittel, K. A., Textbook of Palaeontology, 1st English ed., transl. Eastman, C. R., p. 502-592, fig. 1049-1235.
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Order:
Ceratitida
Suborder:
Ammonitina
Superfamily:
Steogabicerataceae
Family:
Pachyceratidae
Formal Genus Name and Reference:
Erymnoceras HYATT, 1900
Type Species:
Am. coronatus BruGUiÈre in D'ORBIGNY, 1848
Images
(Click to enlarge in a new window)
Fig. 357,2. *E. (E.) coronatum (Brug.), Fr., x0.12 (330*)"
Synonyms
Doliolumites
Geographic Distribution
Eu.-N.Afr.-Syria-C.Arabia-Crimea-Cauc.-C.Russia-Persia-Cutch-Mex.
Age Range
Beginning Stage in Treatise Usage:
M.Jur.(M. Callov.)
Beginning International Stage:
Callovian
Fraction Up In Beginning Stage:
50
Beginning Date:
163.41
Ending Stage in Treatise Usage:
M.Jur.(M. Callov.)
Ending International Stage:
Callovian
Fraction Up In Ending Stage:
70
Ending Date:
162.66
Description
Coronate, with tuberculate umbilical edge and strong ribbing, resembling inner whorls of Teloceras and Tulites. Outer whorl may become smooth and contracted.
References
Hyatt, Alpheus, 1900, Cephalopoda: in Zittel, K. A., Textbook of Palaeontology, 1st English ed., transl. Eastman, C. R., p. 502-592, fig. 1049-1235.