Welcome to the Treatise on Invertebrate Paleontology!
Please enter a genera name to retrieve more information.
Bilinguites
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Goniatitida
Superfamily:
Gastrioceratoidea
Family:
Reticuloceratidae
Formal Genus Name and Reference:
Bilinguites LIBROVICH, 1946, p. 79
Type Species:
Reticuloceras superbilingue BISAT, 1924, p. 51, OD
Images
(Click to enlarge in a new window)
Fig. 57, 4a-b. *B. superbilinguis (BISAT), a, side view, Aiseau-Presles, Hainaut, Belgium, upper Marsdenian, depository not stated, × 3 (Demanet, 1941), b, suture, Donets, Ukraine, Marsdenian, magnification not stated (Bogoslovskii, Librovich, & Ruzhentsev, 1962).
Synonyms
Geographic Distribution
Ningxia, Uzbekistan (Fergana, Tian Shan), Canada (Northwest Territories), USA (Oklahoma)
Age Range
Beginning Stage in Treatise Usage:
Pennsylvanian (lower Bashkirian [Marsdenian])
Beginning International Stage:
Bashkirian
Fraction Up In Beginning Stage:
17.2
Beginning Date:
321.98
Ending Stage in Treatise Usage:
Pennsylvanian (lower Bashkirian Yeadonian)
Ending International Stage:
Bashkirian
Fraction Up In Ending Stage:
56.3
Ending Date:
318.76
Description
Conch form with wide umbilicus in early whorls, later moderately wide, and frequently narrowly umbilicate in adult forms. Some species exhibit a tendency to form oxycone venter.
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Goniatitida
Superfamily:
Gastrioceratoidea
Family:
Reticuloceratidae
Formal Genus Name and Reference:
Bilinguites LIBROVICH, 1946, p. 79
Type Species:
Reticuloceras superbilingue BISAT, 1924, p. 51, OD
Images
(Click to enlarge in a new window)
Fig. 57, 4a-b. *B. superbilinguis (BISAT), a, side view, Aiseau-Presles, Hainaut, Belgium, upper Marsdenian, depository not stated, × 3 (Demanet, 1941), b, suture, Donets, Ukraine, Marsdenian, magnification not stated (Bogoslovskii, Librovich, & Ruzhentsev, 1962).
Synonyms
Geographic Distribution
Ningxia, Uzbekistan (Fergana, Tian Shan), Canada (Northwest Territories), USA (Oklahoma)
Age Range
Beginning Stage in Treatise Usage:
Pennsylvanian (lower Bashkirian [Marsdenian])
Beginning International Stage:
Bashkirian
Fraction Up In Beginning Stage:
17.2
Beginning Date:
321.98
Ending Stage in Treatise Usage:
Pennsylvanian (lower Bashkirian Yeadonian)
Ending International Stage:
Bashkirian
Fraction Up In Ending Stage:
56.3
Ending Date:
318.76
Description
Conch form with wide umbilicus in early whorls, later moderately wide, and frequently narrowly umbilicate in adult forms. Some species exhibit a tendency to form oxycone venter.