Also known as Carbon Cerrejón; Cerrejón Coal Mine
Where: Guajira, Colombia (11.1° N, 72.5° W: paleocoordinates 8.5° N, 59.4° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Cerrejón Formation, Middle Paleocene to Middle Paleocene (61.7 - 55.8 Ma)
• Dates [60 to 58 Ma] based on 13C correlation to Zachos et al. (2001) global isotope curve. Age estimation from Jaramillo et al. (2007), Palynology, 31:153-189.
• group of beds-level stratigraphic resolution
Environment/lithology: delta plain; gray, muddy claystone and argillaceous, sandy sandstone
Size class: macrofossils
Reposited in the FLMNH
Collection methods: salvage, surface (in situ), mechanical,
• Specimens on loan to FLMNH, official repository is IGM (Bogota)
Primary reference: J. J. Head, J. I. Bloch, A. K. Hastings, J. R. Bourque, E. A. Cadena, F. A. Herrera, P. D. Polly and C. A. Jaramillo. 2009. Giant boid snake from the Paleocene neotropics reveals hotter past equatorial temperatures. Nature 457:715-717 [J. Head/J. Head]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 106271: authorized by Jason Head, entered by Jason Head on 05.03.2011, edited by John Alroy, Roger Benson and Philip Mannion
Creative Commons license: CC BY (attribution)
Taxonomic list
| Reptilia | |
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Acherontisuchus guajiraensis5 Hastings et al. 2011 crocodilian UF ⁄ IGM 35, mandible including left and right dentaries and splenials, the left surangular, angular and articular, and a total of three partial teeth. Associated postcrania include two ribs, one sacral vertebra with partial sacral ribs and one metatarsal. These fossils were recovered from the underclay of Coal Seam 90 within the La Puente Pit
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Palaeophiinae indet.4 Lydekker 1888 snake UF/IGM 16-a-c (originally assigned to Titanoboa by Head et al. 2009)
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Titanoboa cerrejonensis n. gen. n. sp.
Titanoboa cerrejonensis n. gen. n. sp. Head et al. 2009 boa UF/IGM 1 (holotype), a single precloacal vertebra; UF/IGM 2 (paratype), nearly complete precloacal vertebra; UF/IGM 3–UF/IGM 28, 184 additional precloacal vertebrae and ribs representing 28 individuals
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Carbonemys cofrinii n. gen. n. sp.3 Cadena et al. 2012 sideneck turtle UF/IGM 41 - holotype (nearly complete skull)
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Pelomedusoides " shell taxon A "3 sideneck turtle UF/IGM 71 (nearly complete, somewhat crushed, articulated carapace and plastron)
Pelomedusoides " shell taxon B "3 sideneck turtle UF/IGM 72 (carapace and plastron), UF/IGM 73 (partially articulated shell), UF/IGM 74 (partially articulated shell) and UF/IGM 75 (nuchal and left costal 1)
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Puentemys mushaisaensis2 Cadena et al. 2012 sideneck turtle From clay layer underlying coal seam 90. UF/IGM 50-64 were reported from claystone layers under Coal Seams 40, 85, 90, and 115. But specific horizon data was not given for each specimen
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| Osteichthyes | |
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Dipnoi sp. lungfish | |
| Actinopteri | |