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Megalytoceras
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Ammonitida
Superfamily:
Lytocerataceae
Family:
Lytoceratidae
Formal Genus Name and Reference:
Megalytoceras BUCKMAN, 1905
Type Species:
*Lytoceras confusum BUCK., 1881
Images
(Click to enlarge in a new window)
Fig. 226,5. *M. confusum (Buck.), 5a,b, x0.3 (595*)
Synonyms
Geographic Distribution
Eng.
Age Range
Beginning Stage in Treatise Usage:
M.Baj.
Beginning International Stage:
Bajocian
Fraction Up In Beginning Stage:
33
Beginning Date:
170
Ending Stage in Treatise Usage:
M.Baj.
Ending International Stage:
Bajocian
Fraction Up In Ending Stage:
66
Ending Date:
169.1
Description
Early whorls elliptical in section, bearing periodic flares, later whorls becoming smooth and planulate, with convergent sides, rather wide umbilical area and abrupt umbilical edge
References
Buckman, S. S., 1905, On certain genera and species of Lytoceratidae: Quart. Jour. Geol. Soc. (London), v. 61, p. 142-154, pl. 15-16.
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Ammonitida
Superfamily:
Lytocerataceae
Family:
Lytoceratidae
Formal Genus Name and Reference:
Megalytoceras BUCKMAN, 1905
Type Species:
*Lytoceras confusum BUCK., 1881
Images
(Click to enlarge in a new window)
Fig. 226,5. *M. confusum (Buck.), 5a,b, x0.3 (595*)
Synonyms
Geographic Distribution
Eng.
Age Range
Beginning Stage in Treatise Usage:
M.Baj.
Beginning International Stage:
Bajocian
Fraction Up In Beginning Stage:
33
Beginning Date:
170
Ending Stage in Treatise Usage:
M.Baj.
Ending International Stage:
Bajocian
Fraction Up In Ending Stage:
66
Ending Date:
169.1
Description
Early whorls elliptical in section, bearing periodic flares, later whorls becoming smooth and planulate, with convergent sides, rather wide umbilical area and abrupt umbilical edge
References
Buckman, S. S., 1905, On certain genera and species of Lytoceratidae: Quart. Jour. Geol. Soc. (London), v. 61, p. 142-154, pl. 15-16.