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Subplanites
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Ammonitida
Superfamily:
Perisphinctaceae
Family:
Perisphinctidae
Formal Genus Name and Reference:
Subplanites SPATH, 1925
Type Species:
Virgatosphinctes reisi SCHNEID, 1914
Images
(Click to enlarge in a new window)
Fig. 431,5. *S. reisi (Schneid), Ger., x0.25 (429*)
Synonyms
Virgatosphinctoides, Allovirgatites, Pectiniformites, Sokolovia, Ilowaiskya
Geographic Distribution
Eu., S.Russia, Somali, Abys., Cutch, Borneo, Mex., ?Greenl.
Age Range
Beginning Stage in Treatise Usage:
M. Kimm.
Beginning International Stage:
Kimmeridgian
Fraction Up In Beginning Stage:
33
Beginning Date:
152.95
Ending Stage in Treatise Usage:
L.Tithon.
Ending International Stage:
Tithonian
Fraction Up In Ending Stage:
70
Ending Date:
144.94
Description
Evolute, constricted, whorls more or less quadrate, ribbing on inner whorls sharp and biplicate, indistinguishable from Lithacoceras, becoming on outer whorls triplicate or quadruplicate and virgatotome
References
Spath, L. F., 1925, Ammonites and Aptychi [from Somaliland]: Mon. Hunterian Mus. Univ. Glasgow, v. 1, p. 111-164, pl. 15-16.
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Ammonitida
Superfamily:
Perisphinctaceae
Family:
Perisphinctidae
Formal Genus Name and Reference:
Subplanites SPATH, 1925
Type Species:
Virgatosphinctes reisi SCHNEID, 1914
Images
(Click to enlarge in a new window)
Fig. 431,5. *S. reisi (Schneid), Ger., x0.25 (429*)
Synonyms
Virgatosphinctoides, Allovirgatites, Pectiniformites, Sokolovia, Ilowaiskya
Geographic Distribution
Eu., S.Russia, Somali, Abys., Cutch, Borneo, Mex., ?Greenl.
Age Range
Beginning Stage in Treatise Usage:
M. Kimm.
Beginning International Stage:
Kimmeridgian
Fraction Up In Beginning Stage:
33
Beginning Date:
152.95
Ending Stage in Treatise Usage:
L.Tithon.
Ending International Stage:
Tithonian
Fraction Up In Ending Stage:
70
Ending Date:
144.94
Description
Evolute, constricted, whorls more or less quadrate, ribbing on inner whorls sharp and biplicate, indistinguishable from Lithacoceras, becoming on outer whorls triplicate or quadruplicate and virgatotome
References
Spath, L. F., 1925, Ammonites and Aptychi [from Somaliland]: Mon. Hunterian Mus. Univ. Glasgow, v. 1, p. 111-164, pl. 15-16.