Cantera de la Pala Mécanica (MPCA): Early/Lower Campanian - Middle Campanian, Argentina
collected by R. Abel 1975–1983

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia
Titanosaurus araukanicus (Huene 1927)
Salgado and Azpilicueta 2000
MPCA 1501; 27 articulated caudal vertebrae
    = Lithostrotia indet. Wilson and Upchurch 2003
Gallina and Otero 2015
cf. Epachthosaurus sp. Powell 1990
Salgado 1996 1 individual
Powell 1986; MPCA 1500
    = Pellegrinisaurus powelli n. gen., n. sp. Salgado 1996
Salgado 1996
Reptilia - Abelisauridae
Abelisaurus comahuensis n. gen., n. sp. Bonaparte 1984
Bonaparte and Novas 1985 1 individual
MC 11098, skull (1 measurement)
Reptilia - Testudines
Chelonii indet. Latreille 1800
de Broin and de la Fuente 1993
synonym of Testudines
see common names

Geography
Country:Argentina State/province:Río Negro County:General Roca
Coordinates: 38.8° South, 68.0° West (view map)
Paleocoordinates:41.7° South, 52.6° West
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Campanian 10 m.y. bin:Cretaceous 7
*Period:Late/Upper Cretaceous *Epoch:Late/Upper Senonian
*International age/stage:Maastrichtian
Key time interval:Early/Lower Campanian - Middle Campanian
Age range of interval:83.50000 - 70.60000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Geological group:Neuquén Formation:Anacleto
Stratigraphic resolution:bed
Stratigraphy comments: lower part of Allen Formation, Rio Colorado Subgroup - reassigned to Anacleto Fm.

"The abelisaurid Abelisaurus comahuensis was long thought to come from the Anacleto Formation, from sedimentary beds near Pellegrini Lake (Heredia and Salgado 1999; Leanza et al., 2004). However, a recent communication referred Abelisaurus to the lower member of the Allen Formation (Delaloye and Garrido 2017). Nonetheless, Giannechini et al. (2015), following information from local farmers, raised the possibility that the Abelisaurus holotype does not come from Pellegrini Lake, and instead, belongs to a farm close to Salitral Moreno in which continental sediments from Allen Formation outcrops; however, as pointed out these authors there is no record or field notes to assert this line of evidence (Aranciaga Rolando et al. 2020).
Lithology and environment
Primary lithology:medium,coarse,yellow sandstone
Includes fossils?Y
Lithology description: "medium to coarse light yellowish friable sandstones"
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Degree of concentration:dispersed
Size of fossils:macrofossils,mesofossils
Preservation of anatomical detail:medium
Articulated whole bodies:none
Associated major elements:some
Disassociated major elements:many
Disassociated minor elements:many
Fragmentation:extreme
Collection methods and comments
Collection methods:mechanical,field collection,survey of museum collection
Reason for describing collection:taxonomic analysis
Collectors:R. Abel Collection dates:1975–1983
Collection method comments: Listed as 1983 in Bonaparte (1996)
Metadata
Also known as:Cinco Saltos, Lago Pellegrini
Database number:32339
Authorizer:M. Carrano, R. Benson Enterer:M. Carrano, R. Benson
Modifier:F. Aspromonte Research group:vertebrate
Created:2003-06-25 13:59:14 Last modified:2024-01-08 20:36:42
Access level:the public Released:2003-06-25 13:59:14
Creative Commons license:CC BY
Reference information

Primary reference:

63573. J. F. Bonaparte. 1984. I dinosauri dell’Argentina [. In G. M. Ronzoni, M. L. Greggio, & T. B. Guarinoni (eds.), Sulle Orme dei Dinosauri 125-143 [M. Carrano/M. Carrano]

Secondary references:

74109 M. Aranciaga Rolando, M. A. Cerroni, J. A. Garcia Marsà, F. I. Agnolín, M. J. Motta, S. Rozadilla, F. Brisson Eglí and F. E. Novas. 2021. A new medium-sized abelisaurid (Theropoda, Dinosauria) from the Late Cretaceous (Maastrichtian) Allen Formation of Northern Patagonia, Argentina. Journal of South American Earth Sciences 105:102915:1-18 [P. Mannion/P. Mannion/M. Carrano]
16547ETE J. F. Bonaparte. 1996. Cretaceous tetrapods of Argentina. Münchner Geowissenschaften Abhandlungen 30:73-130 [M. Carrano/M. Carrano/M. Carrano]
8721 J. F. Bonaparte and F. E. Novas. 1985. Abelisaurus comahuensis, n.g., n.sp., Carnosauria del Crétacico Tardio de Patagonia [Abelisaurus comahuensis, n.gen., n.sp., Carnosauria from the Late Cretaceous of Patagonia]. Ameghiniana 21(2-4):259-265 [M. Carrano/M. Carrano/M. Carrano]
77482 I. Cerda, V. L. Zurriaguz, J. L. Carballido, R. González, and L. Salgado. 2021. Osteology, paleohistology and phylogenetic relationships of Pellegrinisaurus powelli (Dinosauria: Sauropoda) from the Upper Cretaceous of Argentinean Patagonia. Cretaceous Research 128:104957 [P. Mannion/P. Mannion/P. Mannion]
42415 F. de Broin and M. de la Fuente. 1993. Les tortues fossiles d'Argentine: synthese [The fossil turtles of Argentina: synthesis]. Annales de Paléontologie (Invertebrés-Vertebrés) 79(3):169-232 [R. Benson/R. Benson/M. Carrano]
76304 P. A. Gallina and A. Otero. 2015. Reassessment of Laplatasaurus araukanicus (Sauropoda: Titanosauria) from the Upper Cretaceous of Patagonia, Argentina. Ameghiniana 52(5):487-501 [M. Carrano/M. Carrano]
56352 R. A. García and V. Zurriaguz. 2015. Histology of teeth and tooth attachment in titanosaurs (Dinosauria; Sauropoda). Cretaceous Research 57:248-256 [M. Carrano/M. Carrano]
46158 Z. Gasparini, S. Casadio, M. Fernandez and L. Salgado. 2001. Marine reptiles from the Late Cretaceous of northern Patagonia. Journal of South American Earth Sciences 14(1):51-60 [P. Mannion/J. Tennant/F. Aspromonte]
34689ETE R. D. Juárez Valieri, J. O. Calvo, and S. D. Rios Díaz. 2011. Sauropods crossing formations: biostratigraphical implications for Patagonian faunal assemblages. In J. O. Calvo, J. D. Porfiri, B. J. González Riga, D. Dos Santos (eds.), Dinosaurios y Paleontología desde América Latina. Anales del III Congreso Latinoamericano de Paleontología. Editorial de la Universidad Nacional de Cuyo, Neuquén 153-160 [M. Carrano/M. Carrano]
45986 A. Otero and M. Reguero. 2013. Dinosaurs (Reptilia, Archosauria) at Museo de La Plata, Argentina: annotated catalogue of the type material and Antarctic specimens. Palaeontologia Electronica 16(1):3T:1-24 [P. Mannion/J. Tennant/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]
13714ETE L. Salgado. 1996. Pellegrinisaurus powelli nov. gen. et sp. (Sauropoda, Titanosauridae) from the Upper Cretaceous of Lago Pellegrini, northwestern Patagonia, Argentina. Ameghiniana 33(4):355-365 [M. Carrano/M. Carrano/M. Carrano]
19132ETE L. Salgado. 2003. Considerations on the bony plates assigned to titanosaurs (Dinosauria, Sauropoda). Ameghiniana 40(3):441-456 [M. Carrano/M. Carrano]
13885ETE L. Salgado and C. Azpilicueta. 2000. Un nuevo saltasaurino (Sauropoda, Titanosauridae) de la provincia de Río Negro (Formación Allen, Cretácico Superior), Patagonia, Argentina [A new saltasaurine (Sauropoda, Titanosauridae) from Río Negro province (Allen Formation, Upper Cretaceous), Patagonia, Argentina. Ameghiniana 37(3):259-264 [M. Carrano/M. Carrano/M. Carrano]