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Eudmetoceras
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Order:
Ceratitida
Suborder:
Ammonitina
Superfamily:
Hildocerataceae
Family:
Hammatoceratidae
Subfamily:
Hammatoceratinae
Formal Genus Name and Reference:
Eudmetoceras BUCKMAN, 1920
Type Species:
*. eudmetum
Images
(Click to enlarge in a new window)
Fig. 308,1a,b. *E. eudmetum, Eng., * (595*), Fig. 308,1c. E. euapeptum (Buck.) (type of Euaptetoceras), * (595*)
Synonyms
Euaptetoceras
Geographic Distribution
Eu.-Persia-Arg.
Age Range
Beginning Stage in Treatise Usage:
M.Baj.(sowerbyi z.)
Beginning International Stage:
Bajocian
Fraction Up In Beginning Stage:
33
Beginning Date:
170
Ending Stage in Treatise Usage:
M.Baj.(sowerbyi z.)
Ending International Stage:
Bajocian
Fraction Up In Ending Stage:
66
Ending Date:
169.1
Description
Inner whorls with long primary ribs, outer whorls becoming smooth, involute coiling in some species goes as usual with a nonretracted umbilical lobe
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Order:
Ceratitida
Suborder:
Ammonitina
Superfamily:
Hildocerataceae
Family:
Hammatoceratidae
Subfamily:
Hammatoceratinae
Formal Genus Name and Reference:
Eudmetoceras BUCKMAN, 1920
Type Species:
*. eudmetum
Images
(Click to enlarge in a new window)
Fig. 308,1a,b. *E. eudmetum, Eng., * (595*), Fig. 308,1c. E. euapeptum (Buck.) (type of Euaptetoceras), * (595*)
Synonyms
Euaptetoceras
Geographic Distribution
Eu.-Persia-Arg.
Age Range
Beginning Stage in Treatise Usage:
M.Baj.(sowerbyi z.)
Beginning International Stage:
Bajocian
Fraction Up In Beginning Stage:
33
Beginning Date:
170
Ending Stage in Treatise Usage:
M.Baj.(sowerbyi z.)
Ending International Stage:
Bajocian
Fraction Up In Ending Stage:
66
Ending Date:
169.1
Description
Inner whorls with long primary ribs, outer whorls becoming smooth, involute coiling in some species goes as usual with a nonretracted umbilical lobe