Rio Colorado Formation

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Rio Colorado Formation
Type Geological formation
Location
Country  Argentina

The Rio Colorado Formation is a Mesozoic geologic formation. Dinosaur remains diagnostic to the genus level are among the fossils that have been recovered from the formation.[1]

Paleofauna

Ornithischians

Ornithischians reported from the Rio Colorado Formation
Genus Species Province Stratigraphic position Material Notes Images

Gasparinisaura[2]

G. cincosaltensis[2]

Anacleto

"Skull and postcranial skeleton, postcranial elements, juvenile to subadult."[3]

Sauropods

Titanosaur eggs are known from Neuquen province.[4]

Color key
Taxon Reclassified taxon Taxon falsely reported as present Dubious taxon or junior synonym Ichnotaxon Ootaxon Morphotaxon
Notes
Uncertain or tentative taxa are in small text; crossed out taxa are discredited.
Sauropods reported from the Rio Colorado Formation
Genus Species Province Stratigraphic position Material Notes Images

Antarctosaurus[2]

A. wichmannianus[2]

Anacleto

Loricosaurus[5]

L. scutatus[5]

Microcoelus[4]

M. patagonicus[4]

Bajo de La Carpa

Possible synonym of Neuquensaurus

Neuquensaurus[6]

N. australis[6]

Anacleto

"Titanosaurus"[2]

"T." robustus[2]

Anacleto

Titanosaurus[6]

T. nanus[6]

Bajo de La Carpa

Theropods

Theropods reported from the Rio Colorado Formation
Genus Species Province Stratigraphic position Material Notes Images

Abelisaurus[2]

A. comahuaensis[2]

Anacleto

"Partial skull."[7]

Alvarezsaurus[4]

A. calvoi[4]

Bajo de La Carpa

"Partial postcranial skeleton."[8]

Aucasaurus[4]

A. garridoi[4]

Anacleto

"Nearly complete skeleton."[7]

Neuquenornis[4]

N. volans[4]

Bajo de la Carpa

"Partial skeleton."[9]

Patagopteryx[4]

P. deferrariisi[4]

Bajo de la Carpa

"Many skeletons."[10]

Velocisaurus[4]

V. unicus[4]

Bajo de la Carpa

"Partial hind limb."[7]

See also

Footnotes

  1. Weishampel, et al. (2004). "Dinosaur distribution." Pp. 603-604.
  2. 2.00 2.01 2.02 2.03 2.04 2.05 2.06 2.07 2.08 2.09 2.10 2.11 2.12 2.13 "63.10 Provincia de Río Negro, Argentina; 4. Río Colorado Formation," in Weishampel, et al. (2004). Page 604.
  3. "Table 18.1," in Weishampel, et al. (2004). Page 395.
  4. 4.00 4.01 4.02 4.03 4.04 4.05 4.06 4.07 4.08 4.09 4.10 4.11 4.12 4.13 4.14 4.15 4.16 4.17 4.18 4.19 4.20 4.21 "63.6 Provincia de Neuquén, Argentina; 3. Río Colorado Formation," in Weishampel, et al. (2004). Page 603.
  5. 5.0 5.1 Listed as "?Loricosaurus scutatus" in "63.6 Provincia de Neuquén, Argentina; 3. Río Colorado Formation" and "63.10 Provincia de Río Negro, Argentina; 4. Río Colorado Formation," in Weishampel, et al. (2004). Pages 603-604.
  6. 6.0 6.1 6.2 6.3 "63.6 Provincia de Neuquén, Argentina; 3. Río Colorado Formation" and "63.10 Provincia de Río Negro, Argentina; 4. Río Colorado Formation," in Weishampel, et al. (2004). Pages 603-604.
  7. 7.0 7.1 7.2 "Table 3.1," in Weishampel, et al. (2004). Page 49.
  8. "Table 11.1," in Weishampel, et al. (2004). Page 211.
  9. "Table 11.1," in Weishampel, et al. (2004). Page 213.
  10. "Table 11.1," in Weishampel, et al. (2004). Page 212.

References

  • Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp. ISBN 0-520-24209-2.

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