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Cancelloceras
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Goniatitida
Superfamily:
Gastrioceratoidea
Family:
Gastrioceratidae
Formal Genus Name and Reference:
Cancelloceras Ruzhentsev & BOGOSLOVSKAIA, 1969b, p. 1333
Type Species:
Gastrioceras cancellatum BISAT, 1923, p. 47, OD
Images
(Click to enlarge in a new window)
Fig. 60, 4a-b. C. (C.) crencellatum Bisat, = C. (Cr.) soliari Nikolaeva & Kullmann, paratype, Choça, near São Marcos da Serra, southwestern Portugal, Quebradas Formation, Yeadonian, IGML 24/1, a, side view, X 2, b, suture, X 3.1 (Nikolaeva & Kullmann, 1995).", "Fig. 60, 3a-c. *C. (M.) karpinskii (YaniSHEVSKII), Shartym river, Cheliabinsk oblast', Marsdenian, a-b, PIN 455/48002, X 2, c, suture, PIN 455/48000, whorl height at 6.3 mm , whorl width 12.3 mm, X 4.2 (Ruzhentsev & Bogoslovskaia, 1978)."
Synonyms
Leiogastrioceras
Geographic Distribution
Belgium, England, Wales, France, Germany, Netherlands, Poland, Portugal, Russia (South Urals), Ukraine (Donets), Algeria, Morocco, Kazakhstan (Tian Shan), Kyrgyzstan (Tian Shan), Uzbekistan (Fergana, Tian Shan), China (Ningxia, Guizhou), USA (Arkansas, Oklahoma, Nevada)
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 moderately involute. Well-developed tubercles on umbilical shoulder similar to Gastrioceras, but with reticulate ornamentation at maturity. Suture resembles Gastrioceras. Many species. Three subgenera: Cancelloceras (Cancelloceras) ruzhentsev & BogoslovsKaia, 1969b; Cancelloceras (Monitoceras) ruzhentsev & BogoslovsKaia, 1978; and Cancelloceras (Crencelloceras) niKolaeva & Kullmann, 1995. [Leiogastrioceras was established for species with relatively high median saddle and narrow adventitious lobe. For discussion, see niKolaeva & Kullmann, 1995.]
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Goniatitida
Superfamily:
Gastrioceratoidea
Family:
Gastrioceratidae
Formal Genus Name and Reference:
Cancelloceras Ruzhentsev & BOGOSLOVSKAIA, 1969b, p. 1333
Type Species:
Gastrioceras cancellatum BISAT, 1923, p. 47, OD
Images
(Click to enlarge in a new window)
Fig. 60, 4a-b. C. (C.) crencellatum Bisat, = C. (Cr.) soliari Nikolaeva & Kullmann, paratype, Choça, near São Marcos da Serra, southwestern Portugal, Quebradas Formation, Yeadonian, IGML 24/1, a, side view, X 2, b, suture, X 3.1 (Nikolaeva & Kullmann, 1995).", "Fig. 60, 3a-c. *C. (M.) karpinskii (YaniSHEVSKII), Shartym river, Cheliabinsk oblast', Marsdenian, a-b, PIN 455/48002, X 2, c, suture, PIN 455/48000, whorl height at 6.3 mm , whorl width 12.3 mm, X 4.2 (Ruzhentsev & Bogoslovskaia, 1978)."
Synonyms
Leiogastrioceras
Geographic Distribution
Belgium, England, Wales, France, Germany, Netherlands, Poland, Portugal, Russia (South Urals), Ukraine (Donets), Algeria, Morocco, Kazakhstan (Tian Shan), Kyrgyzstan (Tian Shan), Uzbekistan (Fergana, Tian Shan), China (Ningxia, Guizhou), USA (Arkansas, Oklahoma, Nevada)
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 moderately involute. Well-developed tubercles on umbilical shoulder similar to Gastrioceras, but with reticulate ornamentation at maturity. Suture resembles Gastrioceras. Many species. Three subgenera: Cancelloceras (Cancelloceras) ruzhentsev & BogoslovsKaia, 1969b; Cancelloceras (Monitoceras) ruzhentsev & BogoslovsKaia, 1978; and Cancelloceras (Crencelloceras) niKolaeva & Kullmann, 1995. [Leiogastrioceras was established for species with relatively high median saddle and narrow adventitious lobe. For discussion, see niKolaeva & Kullmann, 1995.]