The
Río Neuquén Subgroup is a geological
subgroup in the
Neuquén Basin ,
Neuquén Province , Argentina, whose strata date back to the
Late Cretaceous . The subgroup, formerly defined as a formation, is the middle unit of the
Neuquén Group and contains the
Plottier ,
Sierra Barrosa Formation ,
Los Bastos Formation , and
Portezuelo Formations . The subgroup overlies the
Río Limay Subgroup and is overlain by the
Río Colorado Subgroup . Dinosaur remains are among the fossils that have been recovered from the formation.
Fossil content
Dinosaurs
Genus
Species
Location
Stratigraphic position
Material
Notes
Images
Antarctosaurus A. giganteus
"[Two] femora, pubis."
Río Neuquén remains previously referred to A. giganteus are now attributed to an indeterminate sauropod.
A. wichmannianus
Megaraptor M. namunhuaiquii
"Partial forelimb, manus, and pes."
Patagonykus P. puertai
"Partial postcranial skeleton."
Rinconsaurus R. cadamirus
Titanosaurus Indeterminate
Titanosaurus is now considered a nomen dubium
Unenlagia U. comahuensis
"Fragmentary postcrania."
See also
References
^ Garrido, 2011, p.237
^ Garrido, 2011, p.236
^ Balgord & Carapa, 2014, p.6
^ Balgord, 2017, p.455
^ Lebinson et al., 2018, p.252
^ Leanza et al., 2004, p.63
^ Weishampel, 2004, pp. 600-604
^ "Río Neuquén Formation." Weishampel, et al. (2004). Pg. 603.
^ "Table 13.1," in Weishampel, et al. (2004). Page 270.
^ "Table 10.1," in Weishampel, et al. (2004). Page 199.
^ "Table 11.1," in Weishampel, et al. (2004). Page 211.
^ "Table 10.1," in Weishampel, et al. (2004). Page 198.
Bibliography
Balgord, Elizabeth A (2017), "Triassic to Neogene evolution of the south-central Andean arc determined by detrital zircon U-Pb and Hf analysis of Neuquén Basin strata, central Argentina (34°S–40°S)", Lithosphere 9 (3): 453–462, doi :10.1130/L546.1 Balgord, Elizabeth A.; Carapa, Barbara (2014), "Basin evolution of Upper Cretaceous–Lower Cenozoic strata in the Malargüe fold-and-thrust belt: northern Neuquen Basin, Argentina" (PDF) , Basin Research , retrieved 2019-02-22 Garrido, Alberto C (2011), El Grupo Neuquén (Cretácico Tardío) en la Cuenca Neuquina , retrieved 2019-02-23 Leanza, H.A.; Apesteguia, S.; Novas, F.E. ; De la Fuente, M.S. (2004), "Cretaceous terrestrial beds from the Neuquén Basin (Argentina) and their tetrapod assemblages" , Cretaceous Research 25 : 61–87, Bibcode :2004CrRes..25...61L , doi :10.1016/j.cretres.2003.10.005 , retrieved 2019-02-16 Lebinson, Fernando; Turienzo, Martín; Sánchez, Natalia; Araujo, Vanesa; D'Annunzio, María Celeste; Dimieri, Luis (2018), "The structure of the northern Agrio fold and thrust belt (37°30' S), Neuquén Basin, Argentina" , Andean Geology 45 (2): 249–273, doi :10.5027/andgeoV45n2-3049 , hdl :11336/83841 , retrieved 2019-02-22 Weishampel, David B.; Dodson, Peter; Osmólska, Halszka (2004), The Dinosauria, 2nd edition ISBN 0-520-24209-2 , retrieved 2019-02-21 
