Estancia Laguna Palacios "2005 Quarry": Middle Cenomanian - Turonian, Argentina
collected 2005

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia
1 individual
UNPSJB-PV 1007, associated partial skeleton: 3 anterior to middle cervical vertebrae (UNPSJB-PV 1007/1–3), 3 middle to posterior dorsal vertebrae (UNPSJB-PV 1007/4–6), & 2 caudal vertebrae (UNPSJB-PV 1007/7 & 1007/8). Newly identified holotypic material includes: fragment of R frontal (UNPSJB-PV 1007/29), indeterminate neural arch fragment & partial cervical ribs (UNPSJB-PV 1007/35–36), incomplete anterior dorsal vertebra (UNPSJB-PV 1007/13), incomplete anterior to middle dorsal vertebra (UNPSJB-PV 1007/12), incomplete anterior to middle dorsal neural arch (UNPSJB-PV 1007/31), 3 incomplete anterior caudal vertebrae (UNPSJB-PV 1007/9–11), possible metapodial fragment (UNPSJB-PV 1007/33), possible fragment of R astragalus (UNPSJB-PV 1007/32), & numerous indet. elements (UNPSJB-PV 1007/19–28,30,32 and 34). Many of these latter (e.g., UNPSJB-PV 1007/14– 16) are probably partial dorsal or anterior caudal neural spines.
Reptilia - Abelisauridae
Lamanna et al. 2012 1 individual
Partial skeleton, including partial skull
Reptilia
Testudinata indet. (Oppel 1811)
partial skeletons of a turtle
see common names

Geography
Country:Argentina State/province:Chubut
Coordinates: 44.9° South, 69.4° West (view map)
Paleocoordinates:44.3° South, 36.0° West (Wright 2013)
Basis of coordinate:stated in text
Geographic resolution:small collection
Time
Period: Cretaceous Epoch: Late Cretaceous
Stage: Cenomanian - Turonian 10 m.y. bin: Cretaceous 5 - Cretaceous 6
Key time interval: Middle Cenomanian - Turonian
Age range of interval: 100.5 - 89.8 m.y. ago
Stratigraphy
Formation:Bajo Barreal Member:Lower
Stratigraphic resolution:bed
Stratigraphy comments: Upper part of the Lower Member of the Bajo Barreal Formation (Upper Cretaceous; Fig. 2), Chubut Group. The age of the Lower Member of the Bajo Barreal Formation is widely regarded as Cenomanian–Turonian (e.g., Archangelsky et al., 1994; Bridge et al., 2000; Lamanna et al., 2002; Ibiricu et al., 2012).
Lithology and environment
Primary lithology:lenticular,grading,coarse,green sandstone
Includes fossils?Y
Lithology description: UNPSJBPV 1007 was recovered from the base of a 1.25-m-thick, fining upward fluvial deposit of lenticular geometry and erosive base. The specimen comes from a coarse green sandstone with numerous mudstone clasts in the matrix.
Environment:fluvial indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:selective quarrying,surface (in situ),mechanical,field collection
Reason for describing collection:taxonomic analysis
Collection dates:2005
Collection method comments: UNPSJB-PV, Universidad Nacional de la Patagonia San Juan Bosco Laboratorio de Paleovertebrados, Comodoro Rivadavia, Argentina
Other vertebrate fossils recovered from the ‘2005 Quarry’ include the partial skeletons of a turtle (M.C.L., pers. observ.) and an abelisaurid theropod dinosaur (Lamanna et al., 2011, 2012), as well as several isolated theropod teeth.
Metadata
Database number:152253
Authorizer:R. Benson Enterer:R. Benson
Modifier:M. Carrano Research group:vertebrate
Created:2013-11-13 02:18:46 Last modified:2025-02-22 15:12:02
Access level:the public Released:2013-11-13 02:18:46
Creative Commons license:CC0
Reference information

Primary reference:
48949. L. M. Ibiricu, G. A. Casal, R. D. Martinez, M. C. Lamanna, M. Luna and L. Salgado. 2013. Katepensaurus goicoecheai, gen. et sp. nov., a Late Cretaceous rebbachisaurid (Sauropoda, Diplodocoidea) from central Patagonia, Argentina. Journal of Vertebrate Paleontology 33(6):1351-1366 [R. Benson/R. Benson]

Secondary references:

76290 L. M. Ibiricu, G. A. Casal, R. D. Martínez, M. C. Lamanna, M. Luna and L. Salgado. 2015. New material of Katepensaurus goicoecheai (Sauropoda: Diplodocoidea) and its significance for the morphology and evolution of Rebbachisauridae. Ameghiniana 52(4):430-446 [M. Carrano/M. Carrano/M. Carrano]
48950 M. C. Lamanna, R. D. Martínez, and J. B. Smith. 2012. A new abelisaurid (Theropoda: Ceratosauria) skeleton from the Upper Cretaceous Bajo Barreal Formation of Chubut Province, Argentina. Journal of Vertebrate Paleontology, Program and Abstracts 2012:124 [R. Benson/R. Benson]