Coordinates: 46°36′S 72°24′W / 46.6°S 72.4°W / -46.6; -72.4

Toqui Formation

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Toqui Formation
Stratigraphic range: Tithonian
~147 Ma
↓
File:Chilesaurus holotype cast.jpg
Cast of Chilesaurus from the Toqui Formation
TypeGeological formation
Unit ofCoihaique Group
UnderliesKatterfeld Formation
OverliesIbáñez Formation
Thickness300–320 m (980–1,050 ft)
Lithology
PrimaryConglomerate, sandstone, tuffite, ignimbrite
Location
CoordinatesLua error in Module:Coordinates at line 489: attempt to index field 'wikibase' (a nil value).
Approximate paleocoordinatesLua error: callParserFunction: function "#coordinates" was not found.
RegionAysén Region
CountryChile

The Toqui Formation is a geological formation in the Aysén Region of southern Chile. It has been dated to the Tithonian stage of the Late Jurassic by uranium–lead dating of zircons, providing ages between 148.7 ± 1.4 Ma and 147 ± 1.0 Ma.[1] It consists of a sequence of clastic sedimentary sandstones and conglomerates, interbedded with volcanic tuffs and ignimbrite.[2] The dinosaurs Chilesaurus and indeterminate diplodocids and the mesoeucrocodylian Burkesuchus are known from the formation.[3][4][5] The formation was deposited in a fluvio-deltaic environment.[6]

Fossil content

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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.

Dinosaurs

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Sauropods

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Sauropods of the Toqui Formation
Genus Species Location Stratigraphic position Material Notes Image
Diplodocidae indet. Indeterminate Aysén Tithonian Cervical centra. A diplodocid sauropod
Diplodocinae indet. Indeterminate Aysén Tithonian Partial caudal vertebra. A diplodocine diplodocid
Sauropoda indet. Indeterminate Aysén Tithonian Partial dorsal vertebra. A indeterminate sauropod
Indeterminate Aysén Tithonian Two caudal vertebrae centra. A indeterminate sauropod
Indeterminate Aysén Tithonian Partial sternal plate. A indeterminate sauropod
Titanosauriformes Indet. Indeterminate Aysén Tithonian Lower end of left femur. A titanosauriform sauropod
Indeterminate Aysén Tithonian Lower end of right tibia. A titanosauriform sauropod

Theropod

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Theropods of the Toqui Formation
Genus Species Location Stratigraphic position Material Notes Image
Chilesaurus C. diegosuarezi Aysén Tithonian Skull with and skeletons from multiple specimens. tetanuran theropod

Crocodylomorphs

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Crocdylomorps of the Toqui Formation
Genus Species Location Stratigraphic position Material Notes Image
Burkesuchus B. mallingrandensis Aysén Tithonian Fragmented skull and partial postcrania. A neosuchian
Crocodylomorpha Indet. Indeterminate Aysén Tithonian Partial postcrania.
Purranisaurus P. potens Aysén Tithonian A geosaurin geosaurine

Fish

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Fishes of the Toqui Formation
Genus Species Location Stratigraphic position Material Notes Image
Leedsichthys L. problematicus Aysén Tithonian A giant pachycormid pachycorminform

See also

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References

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  1. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  2. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  3. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  4. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  5. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  6. ^ Toqui Formation, Aysén at Fossilworks.org
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  • Error creating thumbnail: File missing Media related to Lua error in Module:Commons_link at line 62: attempt to index field 'wikibase' (a nil value). at Wikimedia Commons


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