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Simaspidoceras
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Ammonitida
Superfamily:
Perisphinctaceae
Family:
Perisphinctidae
Formal Genus Name and Reference:
Simaspidoceras SPATH, 1925 [?Subgen. of Physodoceras.]
Type Species:
Aspidoceras argobbae DACQUÉ, 1905
Images
(Click to enlarge in a new window)
Fig. 444,4. *P.? (S.) argobbae (Dacqué), Somali., 4 a-c, X0.3 (604*)
Synonyms
Geographic Distribution
Somali, Abys, Kenya
Age Range
Beginning Stage in Treatise Usage:
U.Jur.(L.Kimm.)
Beginning International Stage:
Kimmeridgian
Fraction Up In Beginning Stage:
0
Beginning Date:
154.78
Ending Stage in Treatise Usage:
U.Jur.(L.Kimm.)
Ending International Stage:
Kimmeridgian
Fraction Up In Ending Stage:
50
Ending Date:
152.01
Description
Whorls stout, coarse feeble ribbing branches from blunt tubercles on umbilical edge. Sutures complex. [?Subgen. of Physodoceras.]
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:
Simaspidoceras SPATH, 1925 [?Subgen. of Physodoceras.]
Type Species:
Aspidoceras argobbae DACQUÉ, 1905
Images
(Click to enlarge in a new window)
Fig. 444,4. *P.? (S.) argobbae (Dacqué), Somali., 4 a-c, X0.3 (604*)
Synonyms
Geographic Distribution
Somali, Abys, Kenya
Age Range
Beginning Stage in Treatise Usage:
U.Jur.(L.Kimm.)
Beginning International Stage:
Kimmeridgian
Fraction Up In Beginning Stage:
0
Beginning Date:
154.78
Ending Stage in Treatise Usage:
U.Jur.(L.Kimm.)
Ending International Stage:
Kimmeridgian
Fraction Up In Ending Stage:
50
Ending Date:
152.01
Description
Whorls stout, coarse feeble ribbing branches from blunt tubercles on umbilical edge. Sutures complex. [?Subgen. of Physodoceras.]
References
Spath, L. F., 1925, Ammonites and Aptychi [from Somaliland]: Mon. Hunterian Mus. Univ. Glasgow, v. 1, p. 111-164, pl. 15-16.