Prenoceratops
| Prenoceratops | ||||||||||||
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| Temporal occurrence | ||||||||||||
| Upper Crayon (middle Campanium ) | ||||||||||||
| 80.6 to 76.4 million years | ||||||||||||
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| Scientific name | ||||||||||||
| Prenoceratops | ||||||||||||
| Chinnery , 2004 | ||||||||||||
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Prenoceratops is a genus of pelvic dinosaurs (Ornithischia) from the group of Ceratopsia .
Prenoceratops may have resembled the related Leptoceratops , even if only the skull has been described so far . This was flatter and more curved than that of Leptoceratops , although the finds were too badly damaged to permit precise analysis. As with many more highly developed Ceratopsia, the head was characterized by the neck shield formed from the parietal and scaly bones, and the teeth, as with all Ceratopsia, were adapted to a vegetable diet.
The fossil remains of this dinosaur were found in the Two Medicine Formation in the US state of Montana and first described in 2004 . It was the first basal Neoceratopsia , the remains of which were found in a bone bed - in the Ceratopsidae , however, such finds are more common. The name is derived from the Greek words prenes (= "inclined, crooked") and keratops (= "horny face"), a common part of the name Ceratopsia. The type and only known species is P. pieganensis . The find is dated in the Upper Cretaceous (middle Campanium ) to an age of around 81 to 76 million years.
A preliminary cladistic investigation of the first descriptor classifies Prenoceratops clearly into the Leptoceratopsidae .
literature
- Brenda Chinnery: Description of Prenoceratops pieganensis gen et sp. nov. (Dinosauria: Neoceratopsia) from the Two Medicine Formation of Montana. In: Journal of Vertebrate Paleontology. Vol. 24, No. 3, 2004, ISSN 0272-4634 , pp. 572-590, doi : 10.1671 / 0272-4634 (2004) 024 [0572: DOPPGE] 2.0.CO; 2 .
Web links
Individual evidence
- ^ Gregory S. Paul : The Princeton Field Guide To Dinosaurs. Princeton University Press, Princeton NJ et al. 2010, p. 253, ISBN 978-0-691-13720-9 , online .