6 km north of Estancia "Ocho Hermanos" (2): Late Cenomanian - Early Turonian, Argentina

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Abelisauridae
1 specimen
UNPSJB-PV 247
Lamanna et al. 2002
Reptilia
Martínez et al. 2004 1 specimen
UNPSJB-PV 920, articulated skeleton lacking skull, cervicals, and anterior dorsals (6 measurements)
see common names

Geography
Country:Argentina State/province:Chubut County:Sarmiento
Coordinates: 45.3° South, 69.6° West (view map)
Paleocoordinates:45.0° South, 37.1° West (Wright 2013)
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period: Cretaceous Epoch: Late Cretaceous
Stage: Cenomanian - Turonian 10 m.y. bin: Cretaceous 5 - Cretaceous 6
Key time interval: Late Cenomanian - Early Turonian
Age range of interval: 100.5 - 89.8 m.y. ago
Stratigraphy
Geological group:Chubut Formation:Bajo Barreal Member:Lower
Stratigraphic resolution:bed
Stratigraphy comments: upper portion of the Lower Member
Lithology and environment
Primary lithology: sandstone
Includes fossils?Y
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Degree of concentration:dispersed
Size of fossils:macrofossils
Preservation of anatomical detail:good
Articulated whole bodies:none
Associated major elements:none
Disassociated major elements:all
Fragmentation:occasional
Temporal resolution:snapshot
Collection methods and comments
Collection methods:selective quarrying,mechanical,field collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:49099
Authorizer:M. Carrano Enterer:M. Carrano
Modifier:F. Aspromonte Research group:vertebrate
Created:2005-04-08 11:00:59 Last modified:2025-02-22 15:12:02
Access level:the public Released:2005-04-08 11:00:59
Creative Commons license:CC0
Reference information

Primary reference:
13118.ETE R. D. Martínez, A. Maure, M. Oliva and M. Luna. 1993. Un maxilar de Theropoda (Abelisauria) de la Formacion Bajo Barreal, Cretacico Tardio, Chubut, Argentina [A theropod (Abelisauria) maxilla from the Bajo Barreal Formation, Late Cretaceous, Chubut, Argentina]. Ameghiniana 30(1):109-110 [M. Carrano/M. Carrano/M. Carrano]

Secondary references:

66791 G. A. Casal, R. D. Martinez, M. Luna and L. M. Ibiricu. 2016. Ordenamiento y caracterización faunisitica del Cretacico superior del Grupo Chubut, Cuenca del Golfo San Jorge, Argentina. Revista Brasileira de Paleontologia 19(1):53-70 [E. Vlachos/E. Vlachos]
76297 I. A. Cerda, G. Casal, R. Martínez and L. Ibiricu. 2015. Sobre la presencia de un ligamento elástico osificado en Titanosauriformes (Dinosauria; Sauropoda) [On the presence of an ossified elastic ligament in Titanosauriformes (Dinosauria; Sauropoda)]. XXIX Jornadas Argentinas de Paleontología de Vertebrados. Resúmenes. Ameghiniana 52(4 (suppl.)):11 [M. Carrano/M. Carrano/M. Carrano]
76392 I. A. Cerda, G. A. Casal, R. D. Martínez and L. M. Ibiricu. 2015. Histological evidence for a supraspinous ligament in sauropod dinosaurs. Royal Society Open Science 2:150369:1-17 [M. Carrano/M. Carrano]
13119ETE M. C. Lamanna, R. D. Martínez, and J. B. Smith. 2002. A definitive abelisaurid theropod dinosaur from the Early Cretaceous of Patagonia. Journal of Vertebrate Paleontology 22(1):59-69 [M. Carrano/M. Carrano/M. Carrano]
10539 R. D. Martínez, O. Giménez, J. Rodríguez, M. Luna, and M. C. Lamanna. 2004. An articulated specimen of the basal titanosaurian (Dinosauria: Sauropoda) Epachthosaurus sciuttoi from the early Late Cretaceous Bajo Barreal Formation of Chubut province, Argentina. Journal of Vertebrate Paleontology 24(1):107-120 [M. Carrano/M. Carrano/M. Carrano]
13712ETE J. E. Powell. 2003. Revision of South American titanosaurid dinosaurs: palaeobiological, palaeobiogeographical and phylogenetic aspects. Records of the Queen Victoria Museum Launceston 111:1-173 [M. Carrano/M. Carrano/M. Carrano]