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) | |
| Type | Formation |
| Sub-units | Emperador Limestone |
| Underlies | Cucaracha Formation |
| Overlies | Las Cascadas Formation |
| Thickness | > 250 m (820 ft) |
| Lithology | |
| Primary | Sandstone, limestone, mudstone, shale |
| Other | Siltstone, conglomerate, lignite |
| Location | |
| Coordinates | 9°06′N 79°42′W / 9.1°N 79.7°W |
| Approximate paleocoordinates |  Panama |
| Extent | Panama Basin |
| Type section | |
| Named for | Culebra Cut |
  Culebra Formation (Panama) | |
Fossil content
editSee also
editReferences
edit- ^ Geologic Map, 1980
- ^ Culebra Formation at Fossilworks.org
- ^ a b Culebrasuchus at Fossilworks.org
- ^ Kirby et al., 2008, p.7
- ^ Kirby et al., 2008, p.11
- ^ Hastings et al., 2013
- ^ Vélez Juarbe & Wood, 2019
- ^ Landau et al., 2016
- ^ Silvestro, 2017, p.14
- ^ Panamacebus at Fossilworks.org
- ^ Rincón et al., 2015
- ^ Cadena et al., 2012, p.549
Bibliography
edit- Cadena, E.; Bourque, J.R.; Rincón, A.F.; Bloch, J.I.; Jaramillo, C.A.; MacFadden, B.J. (2012), "New turtles (Chelonia) from the late Eocene through Late Miocene of the Panama Canal Basin", Journal of Paleontology, 86 (3): 539–557, Bibcode:2012JPal...86..539C, doi:10.1666/11-106.1, retrieved 2019-02-09
- Alexander K. Hastings; Jonathan I. Bloch; Carlos A. Jaramillo; Aldo F. Rincon; Bruce J. Macfadden (2013). "Systematics and biogeography of crocodylians from the Miocene of Panama". Journal of Vertebrate Paleontology. 33 (2): 239–263. Bibcode:2013JVPal..33..239H. doi:10.1080/02724634.2012.713814. S2CID 83972694.
- Kirby, Michael Xavier; Jones, Douglas S.; MacFadden, Bruce J. (2008), "Lower Miocene Stratigraphy along the Panama Canal and Its Bearing on the Central American Peninsula", PLoS ONE, 3 (7): 1–14, Bibcode:2008PLoSO...3.2791K, doi:10.1371/journal.pone.0002791, PMC 2464738, PMID 18665219
- Bernard Manuel Landau; Carlos Marques da Silva; Antoine Heitz (2016). "Systematics of the gastropods of the lower-middle Miocene Cantaure Formation, Paraguaná Peninsula, Venezuela" (PDF). Bulletins of American Paleontology. 389–390: 1–581. Archived from the original (PDF) on 2018-06-19. Retrieved 2019-02-05.
- Aldo F. Rincon; Jonathan I. Bloch; Bruce J. Macfadden & Carlos A. Jaramillo (2015). "New early Miocene protoceratids (Mammalia, Artiodactyla) from Panama". Journal of Vertebrate Paleontology. 35 (5): e970688. Bibcode:2015JVPal..35E0688R. doi:10.1080/02724634.2015.970688. S2CID 12659384.
- Silvestro, Daniele; Tejedor, Marcelo F.; Serrano Serrano, Martha L.; Loiseau, Oriane; Rossier, Victor; Rolland, Jonathan; Zizka, Alexander; Antonelli, Alexandre; Salamin, Nicolas (2017), "Evolutionary history of New World monkeys revealed by molecular and fossil data" (PDF), BioRxiv: 1–32, retrieved 2017-09-24
- Stewart, R.H.; Stewart, J.L.; Woodring, W.P. (1980), Geologic Map of the Panama Canal and Vicinity (PDF), USGS, p. 1, retrieved 2019-02-09
- Vélez Juarbe, Jorge; Wood, Aaron R. (2019), "An early Miocene dugongine (Sirenia: Dugongidae) from Panama", Journal of Vertebrate Paleontology, e1511799 (5): Online edition, doi:10.1080/02724634.2018.1511799, retrieved 2019-02-22
- Woodring, W.P (1957), Geology and Paleontology of Canal Zone and Adjoining Parts of Panama - 306A Geology and description of Tertiary mollusks (Gastropods: Trochidae to Turritellidae) (PDF), USGS, pp. 1–186, retrieved 2019-02-09
Further reading
edit- 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