Toro Toro Formation

The Toro Toro Formation is a Late Campanian geologic formation pertaining to the Puca Group of central Bolivia. The porous yellowish medium-to-coarse grained ferruginous (iron-containing) sandstones and mudstones with gypsum intercalations, deposited in a beach environment, preserve many ichnofossils of Ligabueichnium bolivianum, Dromaeopodus sp.,^[1] Ornithopoda indet., Theropoda indet. and Titanosauridae indet.^[2] The formation has provided the earliest known tracksite of dinosaurs in Bolivia.^[3] The Toro Toro Formation represents part of the postrift stage in an alluvial to deltaic environment within the Potosí Basin. The formation is a local equivalent of the Chaunaca Formation.^[4] The most famous of the dinosaur tracksites is Cal Orcko, however these are in the El Molino Formation

See also

• List of fossiliferous stratigraphic units in Bolivia
• List of stratigraphic units with dinosaur tracks
  • List of stratigraphic units with theropod tracks
• Cajones Formation
• La Puerta Formation

References

1. ^ Apesteguía et al., 2011, p.663
2. ^ Toro Toro, Pista de Danzas at Fossilworks.org
3. ^ Lockley et al., 2002, p.389
4. ^ Apesteguía et al., 2011, p.662

Bibliography

• Apesteguía, Sebastián; De Valais, Silvina; Ríos Cordero, Giovanni; Medina Ramírez, Omar (2011), "New Ichnological Record from the Late Campanian Toro Toro Formation at Toro Toro, Potosí (bolivia): First probable Dromaeosaurid Tracks from South America", Ameghiniana. 48 (4): 662–667, doi:10.5710/AMGH.v48i4(341). hdl:11336/9519, retrieved 2019-03-03
• Lockley, M.G.; Schulp, A.S.; Meyer, C.A.; Leonardi, G.; Mamani, D.K. (2002), "Titanosaurid trackways from the Upper Cretaceous of Bolivia: evidence for large manus, wide-gauge locomotion and gregarious behaviour", Cretaceous Research. 23 (3): 383–400, Bibcode:2002CrRes..23..383L. doi:10.1006/cres.2002.1006