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Leymeriella
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Ammonitida
Superfamily:
Acanthocerataceae
Family:
Leymeriellidae
Formal Genus Name and Reference:
Leymeriella JACOB, 1907, p. 311
Type Species:
Ammonites tardefurcatus Orbigny, 1841, p. 248, SD SPATH, 1925a, p. 75
Images
(Click to enlarge in a new window)
Fig. 103, 4a-c. *L. (N.) consueta, England, X (Casey, 1978).
Synonyms
Geographic Distribution
Europe, Transcaspia, Iran
Age Range
Beginning Stage in Treatise Usage:
Lower Cretaceous (Lower Albian)
Beginning International Stage:
Albian
Fraction Up In Beginning Stage:
0
Beginning Date:
113.2
Ending Stage in Treatise Usage:
Lower Cretaceous (Middle Albian)
Ending International Stage:
Albian
Fraction Up In Ending Stage:
50
Ending Date:
106.85
Description
Venter flat or sulcate, ribs single but grooved on outer part
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Ammonitida
Superfamily:
Acanthocerataceae
Family:
Leymeriellidae
Formal Genus Name and Reference:
Leymeriella JACOB, 1907, p. 311
Type Species:
Ammonites tardefurcatus Orbigny, 1841, p. 248, SD SPATH, 1925a, p. 75
Images
(Click to enlarge in a new window)
Fig. 103, 4a-c. *L. (N.) consueta, England, X (Casey, 1978).
Synonyms
Geographic Distribution
Europe, Transcaspia, Iran
Age Range
Beginning Stage in Treatise Usage:
Lower Cretaceous (Lower Albian)
Beginning International Stage:
Albian
Fraction Up In Beginning Stage:
0
Beginning Date:
113.2
Ending Stage in Treatise Usage:
Lower Cretaceous (Middle Albian)
Ending International Stage:
Albian
Fraction Up In Ending Stage:
50
Ending Date:
106.85
Description
Venter flat or sulcate, ribs single but grooved on outer part