Ceratosauridae
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Ceratosauridae is a family of theropod dinosaurs belonging to the infraorder Ceratosauria. Its type genus, Ceratosaurus, was first found in Jurassic rocks from North America. Ceratosauridae is made up of Ceratosaurus, found in North America, Tanzania, and Portugal, and Genyodectes, from the Late Cretaceous of Argentina.
[edit] Identification
There are two known types of Ceratosaurus teeth: one with longitudinal ridges and the other with smooth enamel both types of teeth have crowns witha teardrop-shaped cross section and carinae runing up the middle the cross section of the tooth's base depends on the position of the tooth in the mouth with front teeth having less symmetric cross sections.
[edit] Sites containing Ceratosaurids
- Dry Mesa Quarry, Colorado/USA (Ceratosaurus)
- Cleveland Lloyd Dinosaur Quarry, Utah/USA (Ceratosaurus)
- Tendaguru, Mtwara Region/Tanzania (Ceratosaurus)
- New Amoreira- Porto Fomation, Portugal (Ceratosaurus)
- Cañadón Grande, Chabut Province/Argentina(Genyodectes)
Note: Dry Mesa Quarry and Cleveland Lloyd Dinosaur Quarry are part of the Morrison Formation
[edit] References
- Khalaf-von Jaffa, Norman Ali Bassam Ali Taher (2006). "Ornithomimid Dinosaur Tracks from Beit Zeit, West of Jerusalem, Palestine." Gazelle: The Palestinian Biological Bulletin, Number 56, August 2006. pp.1-7.
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- Megatheropod Tooth from the Late Tithonian Middle Berriasian (Jurassic- Cretaceous transition) Galve (Aragon, NE Spain) Josà Ignacio Canudo, Josà Ignacio Ruiz-Omeñaca Marc Aurell, Josà Luis Barco and Gloria Cuenca-Bescos, Zaragoza
