The Culebra Formation (Tcb)[1] is a geologic formation in Panama. It preserves fossils dating back to the Miocene period; Early Miocene epoch, Aquitanian to Burdigalian stages (Late Arikareean to Hemingfordian in the NALMA classification).[2] Fossils of Culebrasuchus have been found in and named after the formation.[3] The thickness of the formation is at least 250 metres (820 ft) thick,[4] and the age has been estimated as from 23 to 19 Ma.[5]

Culebra Formation
Stratigraphic range: Aquitanian-Burdigalian (Late Arikareean-Hemingfordian)
23–19 Ma
TypeFormation
Sub-unitsEmperador Limestone
UnderliesCucaracha Formation
OverliesLas Cascadas Formation
Thickness> 250 m (820 ft)
Lithology
PrimarySandstone, limestone, mudstone, shale
OtherSiltstone, conglomerate, lignite
Location
Coordinates9°06′N 79°42′W / 9.1°N 79.7°W / 9.1; -79.7
Approximate paleocoordinates8°24′N 77°30′W / 8.4°N 77.5°W / 8.4; -77.5
RegionColón Province
Country Panama
ExtentPanama Basin
Type section
Named forCulebra Cut
Culebra Formation is located in Panama
Culebra Formation
Culebra Formation (Panama)

Fossil content

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See also

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References

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  1. ^ Geologic Map, 1980
  2. ^ Culebra Formation at Fossilworks.org
  3. ^ a b Culebrasuchus at Fossilworks.org
  4. ^ Kirby et al., 2008, p.7
  5. ^ Kirby et al., 2008, p.11
  6. ^ Hastings et al., 2013
  7. ^ Vélez Juarbe & Wood, 2019
  8. ^ Landau et al., 2016
  9. ^ Silvestro, 2017, p.14
  10. ^ Panamacebus at Fossilworks.org
  11. ^ Rincón et al., 2015
  12. ^ Cadena et al., 2012, p.549

Bibliography

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Further reading

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  • B. J. MacFadden, M. X. Kirby, A. Rincon, C. Montes, S. Moron, N. Strong, and C. Jaramillo. 2010. Extinct peccary "Cynorca" occidentale (Tayassuidae, Tayassuinae) from the Miocene of Panama and correlations to North America. Journal of Paleontology 84(2):288-298
  • C. Pimiento, G. González Barba, A.J.W. Hendy, C. Jaramillo, B. J. MacFadden, C. Montes, S. C. Suarez and M. Shippritt. 2013. Early Miocene chondrichthyans from the Culebra Formation Panama A window into marine vertebrate faunas before closure the Central American Seaway. Journal of South American Earth Sciences 42:159-170