Rio Colorado Formation

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]

Contents 1 Paleofauna 1.1 Ornithischians 1.2 Sauropods 1.3 Theropods 2 See also 3 Footnotes 4 References

Paleofauna

Ornithischians

Ornithischians reported from the Rio Colorado Formation
Genus	Species	Province	Stratigraphic position	Material	Notes	Images
Gasparinisaura[2]	G. cincosaltensis[2]	Río Negro Province[2]		"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 data are in small text; crossed out data are discredited.

Sauropods reported from the Rio Colorado Formation
Genus	Species	Province	Stratigraphic position	Material	Notes	Images
Antarctosaurus[2]	A. wichmannianus[2]	Río Negro Province[2]
Argyrosaurus[4]	Indeterminate[4]	Neuquén Province[4]
Loricosaurus[5]	L. scutatus[5]	Neuquén Province[4] Río Negro Province[2]
Macrurosaurus[6]	Indeterminate[6]	Río Negro Province[2]
Microcoelus[4]	M. patagonicus[4]	Neuquén Province[4]
Neuquensaurus[7]	N. australis[7]	Neuquén Province[4] Río Negro Province[2]
Saltasaurus[2]	S. robustus[2]	Río Negro Province[2]
Titanosaurus[7]	T. nanus[7]	Neuquén Province[4] Río Negro Province[2]

Theropods

Theropods reported from the Rio Colorado Formation
Genus	Species	Province	Stratigraphic position	Material	Notes	Images
Abelisaurus[2]	A. comahuaensis[2]	Río Negro Province[2]		"Partial skull."[8]
Alvarezsaurus[4]	A. calvoi[4]	Neuquén Province[4]		"Partial postcranial skeleton."[9]
Aucasaurus[4]	A. garridoi[4]	Neuquén Province[4]		"Nearly complete skeleton."[8]
Neuquenornis[4]	N. volans[4]	Neuquén Province[4]		"Partial skeleton."[10]
Patagopteryx[4]	P. deferrariisi[4]	Neuquén Province[4]		"Many skeletons."[11]
Velocisaurus[4]	V. unicus[4]	Neuquén Province[4]		"Partial hind limb."[8]

See also

• List of stratigraphic units with dinosaur body fossils
• List of stratigraphic units with dinosaur trace fossils

Footnotes

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.