Cerro Barcino
Description
Source: Wikipédia
The Cerro Barcino Formation (also known as the Gorro Frigio Formation) is a geological formation in South America whose strata span the Early Cretaceous to the earliest Late Cretaceous. The top age for the formation has been estimated to be Cenomanian. Earlier estimates placed the formation until the Campanian.
The formation was deposited in the Cañadón Asfalto Basin, a rift basin that started forming in the earliest Jurassic. Dinosaur remains are among the fossils that have been recovered from the formation.
The Cerro Barcino Formation is the second-youngest unit of the Chubut Group, which also includes the older Los Adobes Formation. Both formations cover a vast area in Chubut Province, Argentina. The two formations are distinguished by geological features suggesting a distinct change in climate, from a wetter, flood plain environment in the Los Adobes to a much more arid, desert-like environment in the Cerro Barcino.
The Cerro Barcino Formation is subdivided into several subunits (members). From oldest to youngest:
Bayo Overo (Correlates with both the Puesto La Paloma and the Cerro Castaño members)
Puesto La Paloma
Characterized by arid plains interspersed with sand dunes
Cerro Castaño
A return to more humid, flood-plain conditions
Las Plumas
The Puesto La Paloma Member dates from ~118-113 Ma, the Cerro Castaño Member dates from ~113-100.5 Ma, correlating with the Albian, and the Las Plumas Member dates from ~100.5-98 Ma.
Découvertes
Source: The Paleobiology Database
Site(s) correspondant(s) à cette formation: 13
La Juanita Estancia, Pablo site : Chubut - ? 10337 17101 49769 ‘La Juanita’ farm, 28 km north-west of Paso de Indios town- Turtle Town, Cerro Barcino : Chubut - ? 10337 "Turtle Town," Cerro Barcino
- Leaellyn's Site #3, Cerro Barcino : Chubut - ? 10337 41617 15 km W of Los Altares, Chubut province
- E flank of Sierra de la Cicuta, Cerro Barcino : Chubut - ? 10337 E flank of Sierra de la Cicuta, Cerro Barcino
- 10 km east-northeast of Cerro Barcino : Chubut - Paso de Indios 10337 10338 10339 13929 16547 59610 63573 85641 10 km ENE of Cerro Barcino, 50 km north of Los Altares, Paseo de Indios Department; originally described as "approximately between 60° 20' W and 43° 30'", and (on a cadastral survey) in Section B1, fraction D, between lots 2 and 9 (lot 9, league A)
- Chubutisaurus insignis
- Carcharodontosauridae identifié comme Megalosaurus inexpectatus n. sp.
- Cañadón Grande, Rio Chubút : Chubut - Paso de Indios 10263 12291 14128 16547 45986 59060 59610 63573 64160 Cañadón Grande, Departamento Paso de Indios, Chubut province, Patagonia, Argentina. Huene (1929) gave the coordinates as 44°30' S, 'slightly east' of 70°W, but also 'not very far from Gaiman', which according to Rauhut is over 50 km away. This large canyon is likely in the region of Laguna del Mate and Manantial Pelado. Listed coordinates are estimated from map as 20 km W of this lake.
- El Jujeño, Cerro Chivo (theropod site) : Chubut - ? 16979 northern flank of Cerro Chivo
- Abelisauroidea identifié comme Abelisauria indet.
- El Indio, Cerro Chivo (sauropod site) : Chubut - ? 16979 62878 eastern flank of Cerro Chivo
- La Juanita Estancia, Raúl site : Chubut - ? 17101 ‘La Juanita’ farm, 28 km north-west of Paso de Indios town
- Leaellyn's Site #2, Cerro Barcino : Chubut - ? 10337 15 km W of Los Altares, Chubut province
- La Flecha ranch : Chubut - ? 63018 76319 15 km W of Los Altares, Chubut province
- Huanimán [Cerro Castaño Mb.] : Chubut - ? 76255 Huanimán, at the base of the SE side of the Sierra de la Cicuta, N-central Chubut
- northeast of Cerro Barcino : Chubut - Paso de Indios 85641 described as being 6 km from the type site of Chubutisaurus insignis.
Publication(s)
La base comprend 22 publication(s).
Source: The Paleobiology Database
- ↑1 2 3 4 5 6 7 8 9 10 11 T. H. Rich, P. J. Vickers-Rich, and F. E. Novas, R. Cuneo, P. Puerta, R. Vacca. 1998. Theropods from the "Middle" Cretaceous Chubut Group of the San Jorge Sedimentary Basin, central Patagonia. A preliminary note. GAIA 15:111-115
- ↑1 2 3 F. E. Novas, S. de Valais, and P. A. Vickers-Rich, T. H. Rich. 2005. A large Cretaceous theropod from Patagonia, Argentina, and the evolution of carcharodontosaurids. Naturwissenschaften 92:226-230 (https://doi.org/10.1007/s00114-005-0623-3)
- ↑1 J. I. Canale, F. E. Novas, and D. Pol. 2013. Osteology and phylogenetic relationships of Tyrannotitan chubutensis Novas, de Valais, Vickers-Rich and Rich, 2005 (Theropoda: Carcharodontosauridae) from the Lower Cretaceous of Patagonia, Argentina. Historical Biology (https://doi.org/10.1080/08912963.2013.861830)
- ↑1 M. T. Carrano, R. B. J. Benson, and S. D. Sampson. 2012. The phylogeny of Tetanurae (Dinosauria: Theropoda). Journal of Systematic Palaeontology 10(2):211-300 (https://doi.org/10.1080/14772019.2011.630927)
- ↑1 2 G. del Corro. 1966. Un nuevo Dinosaurio carnivoro del Chubut [A new carnivorous dinosaur from Chubut]. Communicaciones del Museuo Argentino de Ciencias Naturales "Bernardino Rivadavia" e Institutio Nacional de Investigacion de las Ciencias Naturales: Paleontologia 1(1):1-4
- ↑1 G. del Corro. 1975. Un nuevo sauropodo del Cretácico Superior. Actas del Primer Congreso Argentino de Paleontologia y Bioestratigrafia 2:229-240
- ↑1 J. F. Bonaparte and Z. B. Gasparini. 1979. Los sauropodos de los grupos Neuquén y Chubut, y sus relaciones cronologicas [The sauropods of the Neuquén and Chubut Groups, and their chronological relationships]. Actas del VII Congreso Geológico Argentino, Neuquén 2:393-406
- ↑1 2 J. F. Bonaparte. 1996. Cretaceous tetrapods of Argentina. Münchner Geowissenschaften Abhandlungen 30:73-130
- ↑1 2 J. F. Bonaparte. 1978. El Mesozoico de America de Sur y sus Tetrapodos [The Mesozoic of South America and its tetrapods]. Opera Lilloana 26:1-596
- ↑1 2 J. F. Bonaparte. 1984. I dinosauri dell’Argentina [. Sulle Orme dei Dinosauri
- ↑1 2 3 O. d. V. Giménez. 1999. Nuevo registro de Sauropoda del Cretácico Inferior de la provincia del Chubut [New report of Sauropoda from the Lower Cretaceous of Chubut province]. XIV Jornadas Argentinas de Paleontología de Vertebrados, Neuquén y Plaza Huincul, 18 al 20 de mayo de 1998, Resúmenes. Ameghiniana 36(1):102
- ↑1 2 A. S. Woodward. 1901. On some extinct reptiles from Patagonia, of the genera Miolania, Dinilysia, and Genyodectes. Proceedings of the Zoological Society of London 1901(1):169-184 (https://doi.org/10.1111/j.1469-7998.1901.tb08537.x)
- ↑1 O. W. M. Rauhut. 2004. Provenance and anatomy of Genyodectes serus, a large-toothed ceratosaur (Dinosauria: Theropoda) from Patagonia. Journal of Vertebrate Paleontology 24(4):894-902 (https://doi.org/10.1671/0272-4634(2004)024[0894:paaogs]2.0.co;2)
- ↑1 F. v. Huene. 1926. The carnivorous Saurischia in the Jura and Cretaceous formations, principally in Europe. Revista del Museo de La Plata 29:35-167
- ↑1 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 (https://doi.org/10.26879/352)
- ↑1 F. v. Huene. 1929. Los sauriquios y ornitisquios del Cretáceo argentino. Anales del Museo de La Plata, serie 2 3:1-196
- ↑1 F. Ameghino. 1906. Les formations sédimentaires du Crétacé supérieur et du Tertiare de Patagonie, avec un parallèle entre leurs faunes mammalogiques et celles de l’ancien continent [The sedimentary formations of the Upper Cretaceous and Tertiary of Patagonia, with a parallel between their mammalian faunas and those of the Old World]. Anales del Museo Nacional de Buenos Aires, serie 3e 7:1-508
- ↑1 2 3 4 O. W. M. Rauhut, G. Cladera, and P. Vickers-Rich, T. H. Rich. 2003. Dinosaur remains from the Lower Cretaceous of the Chubut Group, Argentina. Cretaceous Research 24:487-497 (https://doi.org/10.1016/s0195-6671(03)00067-3)
- ↑1 S. F. Poropat, J. P. Nair, and C. E. Syme, P. D. Mannion, P. Upchurch, S. A. Hocknull, A. G. Cook, T. R. Tischler, T. Holland. 2017. Reappraisal of Austrosaurus mckillopi Longman, 1933 from the Allaru Mudstone of Queensland, Australia’s first named Cretaceous sauropod dinosaur. Alcheringa 41(4):543-580 (https://doi.org/10.1080/03115518.2017.1334826)
- ↑1 2 J. L. Carballido, D. Pol, and A. Otero, I. A. Cerda, L. Salgado, A. C. Garrido, J. Ramezzani, N. R. Cúneo, M. J. Krause. 2016. A new giant titanosaur from the Early Cretaceous of Chubut sheds light to giant titanosaur evolution. XXX Jornadas Argentinas de Paleontología de Vertebrados. Resúmenes. Ameghiniana 53(6 (suppl.)):11
- ↑1 J. L. Carballido, D. Pol, and A. Otero, I. A. Cerda, L. Salgado, A. C. Garrido, J. Ramezani, N. R. Cúneo, J. M. Krause. 2017. A new giant titanosaur sheds light on body mass evolution among sauropod dinosaurs. Proceedings of the Royal Society of London B 284:20171219:1-10 (https://doi.org/10.1098/rspb.2017.1219)
- ↑1 2 E. Argañaraz, G. Grellet-Tinner, and L. E. Fiorelli, J. M. Krause, O. W. M. Rauhut. 2013. Huevos de saurópodos del Aptiano–Albiano, Formación Cerro Barcino (Patagonia, Argentina): un enigma paleoambiental y paleobiológico [Sauropod eggs from the Aptian–Albian, Cerro Barcino Formation (Patagonia, Argentina): a paleoenvironmental and paleobiological enigma]. Ameghiniana 50(2):33-50 (https://doi.org/10.5710/AMGH.9.11.2012.570)
Galerie d'image
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