Welcome to the Treatise on Invertebrate Paleontology!
Please enter a genera name to retrieve more information.
Choffatia
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Ammonitida
Superfamily:
Perisphinctaceae
Family:
Perisphinctidae
Formal Genus Name and Reference:
Choffatia SIEMIRADZKI, 1898
Type Species:
Perisphinctes cobra Wangen, 1875, SD BUCKMAN, 1920
Images
(Click to enlarge in a new window)
Fig. 405,1. *C. (C.) cobra (Waagen), Callov., Cutch; 1a,b, X0.3 (546*)
Synonyms
Geographic Distribution
Eu.-N.Afr.-Somali-Kenya- Tangan.-Madag.-Cauc.-TransCaspia - Persia - Cutch- Baluch.-Pamir-Himalaya-S. Alaska-VSA-Ch
Age Range
Beginning Stage in Treatise Usage:
M.Jur.(U.Bath.)
Beginning International Stage:
Bathonian
Fraction Up In Beginning Stage:
80
Beginning Date:
165.87
Ending Stage in Treatise Usage:
M.Jur.(M. Callov.)
Ending International Stage:
Callovian
Fraction Up In Ending Stage:
70
Ending Date:
162.66
Description
Medium-sized to large shells with regular, well- differentiated primary and secondary ribbing, which gradually fades on venter and becomes distant and faint on outer whorl; peristome simple.
References
Siemiradzki, Joseph von, 1898-99, Monographische Beschreibung der Ammonitengattung Perisphinctes: Palaeontographica (Stuttgart), Band 45 Siemiradzki, Joseph von, , p. 69-296, Band 46 Siemiradzki, Joseph von, , p. 297-352, pl. 20-27.
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Ammonitida
Superfamily:
Perisphinctaceae
Family:
Perisphinctidae
Formal Genus Name and Reference:
Choffatia SIEMIRADZKI, 1898
Type Species:
Perisphinctes cobra Wangen, 1875, SD BUCKMAN, 1920
Images
(Click to enlarge in a new window)
Fig. 405,1. *C. (C.) cobra (Waagen), Callov., Cutch; 1a,b, X0.3 (546*)
Synonyms
Geographic Distribution
Eu.-N.Afr.-Somali-Kenya- Tangan.-Madag.-Cauc.-TransCaspia - Persia - Cutch- Baluch.-Pamir-Himalaya-S. Alaska-VSA-Ch
Age Range
Beginning Stage in Treatise Usage:
M.Jur.(U.Bath.)
Beginning International Stage:
Bathonian
Fraction Up In Beginning Stage:
80
Beginning Date:
165.87
Ending Stage in Treatise Usage:
M.Jur.(M. Callov.)
Ending International Stage:
Callovian
Fraction Up In Ending Stage:
70
Ending Date:
162.66
Description
Medium-sized to large shells with regular, well- differentiated primary and secondary ribbing, which gradually fades on venter and becomes distant and faint on outer whorl; peristome simple.
References
Siemiradzki, Joseph von, 1898-99, Monographische Beschreibung der Ammonitengattung Perisphinctes: Palaeontographica (Stuttgart), Band 45 Siemiradzki, Joseph von, , p. 69-296, Band 46 Siemiradzki, Joseph von, , p. 297-352, pl. 20-27.