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Orthosphinctes
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Order:
Ceratitida
Suborder:
Ammonitina
Superfamily:
Perisphinctaceae
Family:
Perisphinctidae
Subfamily:
Perisphinctinae
Formal Genus Name and Reference:
Orthosphinctes SCHINDEWOLF, 1925 [Subgen. of Perisphinctes.]
Type Species:
*Am. tiziani OPPEL, 1863
Images
(Click to enlarge in a new window)
Fig. 408,3. *P. (O.) tiziani (Oppel), Ger., 3a,b, X0.25 (6*).
Synonyms
Biplices
Geographic Distribution
Eu.-Kenya-Ana-tolia-Cuba
Age Range
Beginning Stage in Treatise Usage:
U.Jur.(U.Oxf.)
Beginning International Stage:
Oxfordian
Fraction Up In Beginning Stage:
50
Beginning Date:
158.16
Ending Stage in Treatise Usage:
U.Jur.(U.Oxf.)
Ending International Stage:
Oxfordian
Fraction Up In Ending Stage:
100
Ending Date:
154.78
Description
Later development of Dichotomosphinctes, from which it differs by having simpler sutures and smaller lappets. [Subgen. of Perisphinctes.]
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Order:
Ceratitida
Suborder:
Ammonitina
Superfamily:
Perisphinctaceae
Family:
Perisphinctidae
Subfamily:
Perisphinctinae
Formal Genus Name and Reference:
Orthosphinctes SCHINDEWOLF, 1925 [Subgen. of Perisphinctes.]
Type Species:
*Am. tiziani OPPEL, 1863
Images
(Click to enlarge in a new window)
Fig. 408,3. *P. (O.) tiziani (Oppel), Ger., 3a,b, X0.25 (6*).
Synonyms
Biplices
Geographic Distribution
Eu.-Kenya-Ana-tolia-Cuba
Age Range
Beginning Stage in Treatise Usage:
U.Jur.(U.Oxf.)
Beginning International Stage:
Oxfordian
Fraction Up In Beginning Stage:
50
Beginning Date:
158.16
Ending Stage in Treatise Usage:
U.Jur.(U.Oxf.)
Ending International Stage:
Oxfordian
Fraction Up In Ending Stage:
100
Ending Date:
154.78
Description
Later development of Dichotomosphinctes, from which it differs by having simpler sutures and smaller lappets. [Subgen. of Perisphinctes.]