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Pterolytoceras
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Ammonitida
Superfamily:
Lytocerataceae
Family:
Lytoceratidae
Formal Genus Name and Reference:
Pterolytoceras SPATH, 1927
Type Species:
Am. exoticus OPPEL, 1863
Images
(Click to enlarge in a new window)
Fig. 226,1. *P. exoticum (Oppel), Spiti sh., 1 a-c, X0.5 (533*)
Synonyms
Geographic Distribution
Himalaya(Spiti sh.)-Punjab
Age Range
Beginning Stage in Treatise Usage:
Tithon., Cretaceous (Berriasian)
Beginning International Stage:
Tithonian
Fraction Up In Beginning Stage:
0
Beginning Date:
149.24
Ending Stage in Treatise Usage:
Lower Cretaceous (Valanginian).
Ending International Stage:
Valanginian
Fraction Up In Ending Stage:
100
Ending Date:
132.6
Description
Whorls subcircular in section, enlarging very slowly, barely in contact, surface with minutely crinkled growth lines and fine irregular ribs
References
Spath, L. F., 1927-33, Revision of the Jurassic cephalopod faunas of Kachh (Cutch): India Geol. Survey Mem., Palaeont. Indica, new ser., v. 9, mem. 2, pts. 1-6, 945 p., 130 pl.
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Ammonitida
Superfamily:
Lytocerataceae
Family:
Lytoceratidae
Formal Genus Name and Reference:
Pterolytoceras SPATH, 1927
Type Species:
Am. exoticus OPPEL, 1863
Images
(Click to enlarge in a new window)
Fig. 226,1. *P. exoticum (Oppel), Spiti sh., 1 a-c, X0.5 (533*)
Synonyms
Geographic Distribution
Himalaya(Spiti sh.)-Punjab
Age Range
Beginning Stage in Treatise Usage:
Tithon., Cretaceous (Berriasian)
Beginning International Stage:
Tithonian
Fraction Up In Beginning Stage:
0
Beginning Date:
149.24
Ending Stage in Treatise Usage:
Lower Cretaceous (Valanginian).
Ending International Stage:
Valanginian
Fraction Up In Ending Stage:
100
Ending Date:
132.6
Description
Whorls subcircular in section, enlarging very slowly, barely in contact, surface with minutely crinkled growth lines and fine irregular ribs
References
Spath, L. F., 1927-33, Revision of the Jurassic cephalopod faunas of Kachh (Cutch): India Geol. Survey Mem., Palaeont. Indica, new ser., v. 9, mem. 2, pts. 1-6, 945 p., 130 pl.