Cerro Carnerero Formation

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Cerro Carnerero Formation
Stratigraphic range: Toarcian-Bajocian
~180–170 Ma
TypeGeological formation
Unit of
Underlies
Overlies
Thickness440 m (1,440 ft)
Lithology
PrimaryClaystone, tuff
OtherConglomerate
Location
Coordinates44°00′S 69°30′W / 44.0°S 69.5°W / -44.0; -69.5Coordinates: 44°00′S 69°30′W / 44.0°S 69.5°W / -44.0; -69.5
Approximate paleocoordinates41°48′S 28°30′W / 41.8°S 28.5°W / -41.8; -28.5
RegionChubut Province
Country Argentina
ExtentGolfo San Jorge Basin
Type section
Named forCerro Carnerero
Named byHerbst
Year defined1966
Cerro Carnerero Formation is located in Argentina
Cerro Carnerero Formation
Cerro Carnerero Formation (Argentina)

The Cerro Carnerero Formation is a geological formation of the Golfo San Jorge Basin in Chubut Province, Patagonia, Argentina.[1]

Description[]

The claystones and tuffs of the approximately 440 metres (1,440 ft) thick formation,[2] belonging to the ,[3] were deposited in a fluvial environment.[4]

The formation dates back to the Middle Jurassic (Toarcian stage) and has preserved fossils of Cladophlebis oblonga,[5] and Amygdalodon patagonicus.[6]

The fossiliferous beds rest on Liassic beds with , and below the Middle to Upper Jurassic . Called the "Cerro Carnerero" beds, Rauhut, 2008, assigned the Cerro Carnerero to the Toarcian to Bajocian.[7]

Lithology[]

The formation comprises sandy tuffs and bluish gray claystones, which form part of a continental sedimentary series mixed with porphyritic conglomerates with partly encrusted round pebbles, and bluish gray clays with sandy intercalations and clays in lesser amounts.[7]

Fossil content[]

Vertebrate fauna[]

Dinosaurs
Taxa Presence Notes Images
Genus:
  1. A. patagonicus
 Chubut Province "Partial skeleton"[6][8]

Arthropods[]

See also[]

References[]

  1. ^ Cañadón Puelman at Fossilworks.org
  2. ^ Cortés, 1986, p.50
  3. ^ Cortés, 1986, p.49
  4. ^ Cortés, 1986, p.53
  5. ^ Cortés, 1986, p.52
  6. ^ a b Weishampel et al., 2004, p.542
  7. ^ a b c Cañadón Puelman, East Slope, Sierra Pampa de Agnía at Fossilworks.org
  8. ^ "Table 13.1," in Weishampel et al., 2004, p.263

Bibliography[]

  • Cortés, José María. 1986. Estratigrafía y tectónica de la región central de la Provincia de Chubut, República Argentina (PhD thesis), 1–242. Universidad de Buenos Aires. Accessed 2019-02-16.
  • Weishampel, David B.; Peter Dodson, and Halszka Osmólska (eds.). 2004. The Dinosauria, 2nd edition, 1–880. Berkeley: University of California Press. Accessed 2019-02-21. ISBN 0-520-24209-2

Further reading[]

  • Cabrera, Á. 1947. Un saurópodo nuevo del Jurásico de Patagonia. , , Paleontología 12. 1–17.
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