Plottier Formation
| Plottier Formation | ||
|---|---|---|
Ma | ||
| Type | Approximate paleocoordinates 42°12′S 49°24′W / 42.2°S 49.4°W | |
| Region | Mendoza, Neuquén & Río Negro Provinces | |
| Country |  Argentina | |
| Extent | Neuquén Basin | |
| Type section | ||
| Named for | Plottier | |
| Named by | Fossa Mancini et al. | |
| Year defined | 1938 | |
  Plottier Formation (Argentina) | ||
The Plottier Formation is a
geologic formation that outcrops in the Argentine Patagonian provinces of Río Negro and Neuquén. It is the younger of two formations belonging to the Río Neuquén Subgroup within the Neuquén Group of the Neuquén Basin, with the oldest rocks dating from the late Coniacian and its youngest maybe from the very start of the Santonian. Formerly, that subgroup was treated as a formation, and the Plottier Formation was known as the Plottier Member.[1]
Description
A section near the Neuquén City airport, north of the town of Plottier, is the type locality of the Plottier Formation.[2] At its base, this formation grades into the Portezuelo Formation, and it is in turn overlain conformably by the Bajo de la Carpa Formation, a unit of the Río Colorado Subgroup.
The Plottier Formation is the thinnest formation within the Neuquén Group, with a maximum thickness of only 25 metres (82 ft). It is differentiated from the underlying
Fossil content
Few animal fossils are known from this formation, including:[4]
- sauropods (including "Antarctosaurus" giganteus,[5] Petrobrasaurus puestohernandezi,[6] Muyelensaurus pecheni and Notocolossus gonzalezparejasi[7][8])
- A large basal theropod
- An azhdarchid pterosaur, Thanatosdrakon amaru
- chelid turtles Linderochelys rinconensis and Rionegrochelys caldieroi
- Abelisauridae[9]
- Unenlagiinae
- Ornithopoda
- Aeolosaurini[10]
- Saltasauridae
- Mesoeucrocodylia
- Crocodyliformes
- Ichnofossils
- Scoyenia sp.
- Taenidium sp.
- at least one mammal
There are also
bivalves.[1]
See also
- List of fossil sites
- List of dinosaur bearing rock formations
References
- ^ a b c Sánchez et al., 2006
- ^ Fossa Mancini et al., 1938
- ^ Leanza et al., 2004
- ^ Plottier Formation at Fossilworks.org
- ISSN 1094-8074.
- ^ Petrobrasaurus puestohernandezi type at Fossilworks.org
- doi:10.1007/s41513-018-0047-5.)
{{cite journal}}: CS1 maint: multiple names: authors list (link - ^ Notocolossus gonzalezparejasi type locality at Fossilworks.org
- S2CID 210268523.
- doi:10.4072/rbp.2013.1.11.)
{{cite journal}}: CS1 maint: multiple names: authors list (link
Bibliography
- Chiappe, Luis M. (1993): Enantiornithine (Aves) Tarsometatarsi from the Cretaceous Lecho Formation of Northwestern Argentina. American Museum Novitates 3083: 1-27. [English with Spanish abstract] PDF fulltext
- Coria, Rodolfo A.; Currie, Philip J.; Eberth, David & Garrido, Alberto (2002): Bird footprints from the Anacleto Formation (Late Cretaceous), Neuquén, Argentina. Ameghiniana 39(4): 453-463. [English with Spanish abstract] PDF fulltext
- Fossa Mancini, E.; Feruglio, E.; Yussen de Campana, J.C. (1938). "Una reunión de geólogos de YPF y el problema de la terminología estratigráfica" [A YPF geologists' reunion and the problem of stratigraphy terminology]. Boletín de Informaciones Petroleras (in Spanish). 15: 1–67.
- Leanza, H.A.; Apesteguia, S.; . Retrieved 2019-02-16.
- Lockley, Martin; Matsukawa, Masaki; Ohira, Hiroto; Li, Jianjun; Wright, Joanna; White, Diane & Chen, Peiji (2006): Bird tracks from Liaoning Province, China: New insights into avian evolution during the Jurassic-Cretaceous transition. Cretaceous Research 27(1): 33-43.
- Salgado, L.; Coria, R.A. & Chiappe, Luis M. (2005): Osteology of the sauropod embryos from the Upper Cretaceous of Patagonia. Acta Palaeontologica Polonica 50(1): 79–92. PDF fulltext
- Sánchez, María Lidia; Heredia, Susana; Calvo, Jorge O. (2006). "Paleoambientes sedimentarios del Cretácico Superior de la Formación Plottier (Grupo Neuquén), Departamento Confluencia, Neuquén" [Sedimentary paleoenvironments in the Upper Cretaceous Plottier Formation (Neuquen Group), Confluencia, Neuquén]. Revista de la Asociación Geológica Argentina (in Spanish). 61: 3–18. Retrieved 2019-02-16.
Further reading
Wikimedia Commons has media related to Plottier Formation.
- A. B. Arcucci, L. S. Filippi, and J. O. Calvo. 2011. "Un nuevo Mesoeucrocodylia Cretácio del norte de la Cuenca Neuquina, Argentina" ["A new Cretaceous Mesoeucrocodylia from the north of the Neuquen Basin, Argentina"]. Revista Brasileira de Paleontologia (in Spanish). 14(1):51–60.
- L. S. Filippi, J. I. Canudo, J. L. Salgado, A. Garrido, R. García, I. Cerda, and A. Otero. 2011. "A new sauropod titanosaur from the Plottier Formation (Upper Cretaceous) of Patagonia (Argentina)". Geologica Acta 9(1):1–12.
- B. J. González Riga, M. C. Lamanna, L. D. Ortiz David, J. O. Calvo, and J. P. Coria. 2016. "A gigantic new dinosaur from Argentina and the evolution of the sauropod hind foot". Scientific Reports 6:19165:1–15.