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Beyrichites
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Ceratitida
Superfamily:
Ceratitaceae
Family:
Beyrichitidae
Formal Genus Name and Reference:
Beyrichites WAAGEN, 1895
Type Species:
Am. reuttensis BEYRICH, 1867
Images
(Click to enlarge in a new window)
Fig. 182,4. B. kesava (Diener), Anis., Himalaya, 4 a, b, X0.7, 4 c, X1 (100*)
Synonyms
Geographic Distribution
Alps, Balkan, Chios, Himalaya, Japan, B.C., Nev.
Age Range
Beginning Stage in Treatise Usage:
L.Trias.(U.Scyth.)
Beginning International Stage:
Olenekian
Fraction Up In Beginning Stage:
0
Beginning Date:
249.88
Ending Stage in Treatise Usage:
M.Trias.(Anis.)
Ending International Stage:
Anisian
Fraction Up In Ending Stage:
100
Ending Date:
241.46
Description
Venter narrowly arched, sigmoidal ribbing tends to disappear or become modified on outer whorl. Suture subammonitic.
References
Waagen, Wilhelm, 1895, Fossils from the Ceratite Formation: Same, ser. 13, Salt Range Fossils, v. 2, p. 1-323, pl. 1-40.
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Ceratitida
Superfamily:
Ceratitaceae
Family:
Beyrichitidae
Formal Genus Name and Reference:
Beyrichites WAAGEN, 1895
Type Species:
Am. reuttensis BEYRICH, 1867
Images
(Click to enlarge in a new window)
Fig. 182,4. B. kesava (Diener), Anis., Himalaya, 4 a, b, X0.7, 4 c, X1 (100*)
Synonyms
Geographic Distribution
Alps, Balkan, Chios, Himalaya, Japan, B.C., Nev.
Age Range
Beginning Stage in Treatise Usage:
L.Trias.(U.Scyth.)
Beginning International Stage:
Olenekian
Fraction Up In Beginning Stage:
0
Beginning Date:
249.88
Ending Stage in Treatise Usage:
M.Trias.(Anis.)
Ending International Stage:
Anisian
Fraction Up In Ending Stage:
100
Ending Date:
241.46
Description
Venter narrowly arched, sigmoidal ribbing tends to disappear or become modified on outer whorl. Suture subammonitic.
References
Waagen, Wilhelm, 1895, Fossils from the Ceratite Formation: Same, ser. 13, Salt Range Fossils, v. 2, p. 1-323, pl. 1-40.