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''Coniophis'' is an extinct genus of snakes from the late Cretaceous period. The type species, '' Coniophis precedes'', was about 7 cm long and had snake-like teeth and body form, with a skull and a largely
Volltext
* Jean-Claude Rage: ' In: ''Palaeontographica Abteilung A'' 25, 1988. S. 3–27. * Jean-Claude Rage, C. Werner: ' In: ''Palaeontologia Africana'' 35, 1999. S. 85–110. * Jean-Claude Rage, Guntupalli V.R. Prasad, Sunil Bajpai: ' In: ' 25, 2004. , S. 425–434. * Jean-Claude Rage, Marc Augé: ' In: ''Geobios'' 42, 2010. , 253–268. {{Taxonbar, from=Q1126074 Cretaceous snakes Eocene snakes Turonian genus first appearances Priabonian extinctions Cretaceous–Paleogene boundary Late Cretaceous reptiles of Africa Late Cretaceous reptiles of Asia Fossils of India Late Cretaceous reptiles of North America Cretaceous Canada Cretaceous United States Fossils of Canada Fossils of the United States Eocene reptiles of Africa Fossils of Morocco Eocene reptiles of Europe Eocene France Fossils of France Paleocene reptiles of North America Paleogene United States Paleocene reptiles of South America Paleocene Bolivia Fossils of Bolivia Tiupampan Eocene Brazil Fossils of Brazil Itaboraian Fossil taxa described in 1892 Taxa named by Othniel Charles Marsh Paleocene reptiles of Africa Eocene reptiles of North America Eocene reptiles of South America Paleocene snakes Cretaceous India Cretaceous Sudan
''Coniophis'' is an extinct genus of snakes from the late Cretaceous period. The type species, '' Coniophis precedes'', was about 7 cm long and had snake-like teeth and body form, with a skull and a largely lizard
Lizards are a widespread group of squamate reptiles, with over 7,000 species, ranging across all continents except Antarctica, as well as most oceanic island chains. The group is paraphyletic since it excludes the snakes and Amphisbaenia alt ...
-like bone structure. It probably ate small vertebrates. The fossil remains of ''Coniophis'' were first discovered at the end of the 19th century in the Lance Formation of the US state of Wyoming, and were described in 1892 by Othniel Charles Marsh. For the genus ''Coniophis'', a number of other species have been described. Their affiliation is, however, poorly secured, mostly based on vertebrae descriptions from only a few fossils.
Fossil distribution
Fossils of ''Coniophis'' have been found in: ;Cretaceous * Milk River and Frenchman Formations, Canada (Alberta, Saskatchewan) *Intertrappean Beds
The Intertrappean Beds are a Late Cretaceous geologic formation in India. The beds are found as interbeds between Deccan Traps layers. Indeterminate theropod and pterosaur remains have been recovered from the formation, as well as dinosaur e ...
, India
* Wadi Milk Formation
The Wadi Milk Formation is a geological formation in Sudan whose strata date back to the Late Cretaceous. Originally, the formation was thought to be Albian to Cenomanian, later research has provided dating to the Campanian to Maastrichtian. Dinosa ...
, Sudan
* United States
** Hell Creek Formation, Montana
** Fruitland Formation, New Mexico
** Naturita, Cedar Mountain, Straight Cliffs, Kaiparowits and Wahweap Formations, Utah
** Lance Formation, Wyoming
;Paleocene
* Santa Lucía Formation ( Tiupampan), Bolivia
* Jbel Guersif Formation, Morocco
* Fort Union Formation, Montana, United States
;Eocene
* Itaboraí Formation, Brazil
* France
* Aït Ouarhitane Formation, Morocco
* United States
** Chadron Formation, North Dakota
** Bridger, Wagon Bed and Wasatch Formations, Wyoming
References
Further reading
* Adriana María Albino: ' In: ''Ameghiniana'' 27, 1991. S. 337–342. * Sebastián Apesteguía, Hussam Zaher: ' In: ' 440, 2006. , S. 1037–1040. * Judy Gail Armstrong-Ziegler: ' In: ' 52 (2), 1978. S. 480–483. * Marc Augé, Jean-Claude Rage: ' In: ' 92, 2006. , S. 235–253. * Richard Estes: 'In: ' 50, 1976. S. 500–520. * Richard C. Fox: ' In: ' 12, 1975. S. 1557–1563. * James D. Gardner, Richard L. Cifelli: ' In: David M. Unwin: ' 60, 1999. S. 87–100. * Robert Hoffstetter: ' In: Jean Piveteau: ' Masson, Paris 1955. S. 606–662 * J. Alan Holman: ' Indiana University Press, Bloomington 2000. . * Nicholas R. Longrich, Bhart-Anjan S. Bhullar, Jacques A. Gauthier: ' In: ''Nature'', 2012. , S. 1–4. * Nicholas R. Longrich, Bhart-Anjan S. Bhullar, Jacques A. Gauthier: ' In: ''Nature'', 2012. , S. 1–10. * Othniel Charles Marsh: ' In: ' 43, 1892. S. 449–453. * Paul Orman McGrew, Max K. Hecht, John M. Hummel, George Gaylord Simpson, Albert Elmer Wood: ' In: ' 117, 1959. S. 117–176.Volltext
* Jean-Claude Rage: ' In: ''Palaeontographica Abteilung A'' 25, 1988. S. 3–27. * Jean-Claude Rage, C. Werner: ' In: ''Palaeontologia Africana'' 35, 1999. S. 85–110. * Jean-Claude Rage, Guntupalli V.R. Prasad, Sunil Bajpai: ' In: ' 25, 2004. , S. 425–434. * Jean-Claude Rage, Marc Augé: ' In: ''Geobios'' 42, 2010. , 253–268. {{Taxonbar, from=Q1126074 Cretaceous snakes Eocene snakes Turonian genus first appearances Priabonian extinctions Cretaceous–Paleogene boundary Late Cretaceous reptiles of Africa Late Cretaceous reptiles of Asia Fossils of India Late Cretaceous reptiles of North America Cretaceous Canada Cretaceous United States Fossils of Canada Fossils of the United States Eocene reptiles of Africa Fossils of Morocco Eocene reptiles of Europe Eocene France Fossils of France Paleocene reptiles of North America Paleogene United States Paleocene reptiles of South America Paleocene Bolivia Fossils of Bolivia Tiupampan Eocene Brazil Fossils of Brazil Itaboraian Fossil taxa described in 1892 Taxa named by Othniel Charles Marsh Paleocene reptiles of Africa Eocene reptiles of North America Eocene reptiles of South America Paleocene snakes Cretaceous India Cretaceous Sudan