Texasetes
| Texasetes | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temporal occurrence | ||||||||||||
| Lower Cretaceous (late Albian ) | ||||||||||||
| 107.5 to 100.5 million years | ||||||||||||
| Locations | ||||||||||||
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Texasetes | ||||||||||||
| Coombs , 1995 | ||||||||||||
| Art | ||||||||||||
|
Texasetes is a little known genus of the bird's dinosaur (Ornithischia) from the group of the Ankylosauria .
features
Texasetes was a small ankylosaur with an estimated 2.5 to 3 meters in length. Some vertebrae , parts of the shoulder girdle and pelvis as well as individual limb bones and bone plates (osteoderms) have so far been found from this dinosaur . From the construction of the shoulder blade and the bone plates, an association with the ankylosaurs can be inferred, otherwise the exact physique is unknown. Presumably, like all ankylosaurs, its torso was covered with armor made of bone plates, the limbs were short and stocky, the animal moved on all fours ( quadruped ) and ate plants.
Discovery and naming
The Texasetes fossil remains were discovered in the Paw-Paw Formation in Tarrant County , Texas . At first they were taken for a sauropod , only Walter Coombs recognized the genus as ankylosaurs and described them in 1995, the genus name means "inhabitant of Texas". The only species described and thus type species is T. pleurohalio . The finds are dated to the late Lower Cretaceous (late Albian ) to an age of about 107 to 100 million years.
Systematics
From its first descriptor Texasetes was classified within the Ankylosauria in the group of Nodosauridae . Other classifications such as Vickaryous et al. (2004) consider the finds too sparse for a precise classification and list it as "Ankylosauria incertae sedis ". Another ankylosaur comes from the same formation, Pawpawsaurus , of which only the skull has been found so far. It may be the same genus.
literature
- Matthew K. Vickaryous, Teresa Maryańska , David B. Weishampel : Ankylosauria. In: David B. Weishampel, Peter Dodson , Halszka Osmólska (eds.): The Dinosauria . 2nd edition. University of California Press, Berkeley CA et al. 2004, ISBN 0-520-24209-2 , pp. 363-392.