Bajo Barreal Formation
| Bajo Barreal Formation Stratigraphic range: Upper Cretaceous |
|
|---|---|
| Type | Geological formation |
| Unit of | Chubut Group |
| Underlies | Laguna Palacios Formation |
| Overlies | Castillo Formation |
| Location | |
| Country |
 Argentina
|
The Bajo Barreal Formation is a geological formation in Chubut, Argentina whose strata date back to the Late Cretaceous.
Dinosaur remains are among the fossils that have been recovered from the formation. Dinosaur remains include the abelisaurid theropod Xenotarsosaurus bonapartei, as well as indeterminate teeth belonging to carcharodontosaurids and dromaeosaurids.
A. darwini
Lower
A basal coelurosaur.
C. ameghinoi
Lower
Maxilla with seven teeth.
D. deseadensis
Upper
"four dorsal vertebrae, one sacral vertebra, six caudal vertebrae, left scapula, dorsal rib fragments, two haemapophyses and indeterminate fragments."
A titanosaur belonging to Lognkosauria.
E. sciuttoi
Lower
"Vertebrae [and] partial illium."
N. comodorensis
Lower
"Vertebrae, partial fore- and hindlimb."
S. musacchioi
Lower
A skull
A lithostrotian titanosaur.
S. koerneri
Upper
"Associated disarticulated postcrania, braincase."
X. bonapartei
Lower
A vertebra and a nearly complete hind limb.
Coordinates: 45°18′S 69°36′W / 45.3°S 69.6°W
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Wikipedia