Culebra Formation

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)
TypeFormation
Sub-unitsEmperador Limestone
UnderliesCucaracha Formation
OverliesLas Cascadas Formation
Thickness> 250 m (820 ft)
Lithology
PrimarySandstone, limestone, mudstone, shale
OtherSiltstone, conglomerate, lignite
Location
Coordinates9.1°N 79.7°W / 9.1; -79.7
Approximate paleocoordinates8.4°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

See also

References

  1. Geologic Map, 1980
  2. Culebra Formation at Fossilworks.org
  3. 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

Further reading

  • 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
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