Also known as STRI 470062
Where: La Guajira, Colombia (11.9° N, 71.3° W: paleocoordinates 11.7° N, 70.8° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Ware Formation, Piacenzian (3.6 - 2.6 Ma)
• The marine invertebrate fauna of the Ware Formation shows a greater similarity with modern assemblages offshore of the Guajira Peninsula than with those of the underlying units. Few taxa provide finely resolved age constraints for the Ware Formation. Pectinids such as Amusium mortoni (early Pliocene to earliest Pleistocene), Euvola codercola (latest Miocene to Pliocene), and Nodipecten arnoldi (late Pliocene to early Pleistocene) suggest an age close to the Pliocene-Pleistocene boundary. A number of internal molds of a shell similar to Acrosterigma dalli (Heilprin, 1887) were also collected. Acrosterigma dalli is known only from the earliest Pleistocene of Florida, and is not easily confused with other cardiid bivalves. A mean age of 3.2 Ma (range of 3.40 Ma to 2.78 Ma) is calculated for the shell bed at the top of the formation from
•87 86 Sr/ Sr ratios. A late Pliocene (Piacenzian) age is assigned to the Ware Formation on the basis of macroinvertebrate biostratigraphy and 87Sr/86Sr isotope chronostratigraphy.
Environment/lithology: fluvial-deltaic; lithified, quartzose sandstone and lithified, muddy sandstone
Size class: macrofossils
Primary reference: J. F. Moreno, A. J. W. Hendy, L. Quiroz, N. Hoyos, D. S. Jones, V. Zapata, S. Zapata, G. A. Ballen, E. Cadena, A. L. Cardenas, J. D. Carrillo, J. D. Carrillo, D. Delgado-Sierra, J. Escobar, J. I. Martinez, C. Martinez, C. Montes, J. Moreno, N. Perez, R. Sanchez, C. Suarez and M. C. Valle. 2015. Revised stratigraphy of Neogene strata in the Cocinetas Basin, La Guajira, Colombia. Swiss Journal of Paleontology [C. Jaramillo/A. Cardenas /M. Vallejo]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 166508: authorized by Carlos Jaramillo, entered by Andrés Cárdenas on 16.02.2015, edited by Juan Carrillo
Creative Commons license: CC BY (attribution)
Taxonomic list
Aves | |
Aves sp. bird | |
Reptilia | |
| |
Alligatoridae sp. crocodilian | |
Podocnemididae sp. Cope 1868 sideneck turtle | |
Mammalia | |
Glyptodontidae sp. glyptodon | |
Pampatheriidae sp. Paula Couto 1954 edentate | |
| |
| |
| |
Megalonychidae sp. Gervais 1855 edentate | |
"Tardigrada indet." = Folivora1
| |
Toxodontidae sp. Ameghino 1889 notoungulate | |
| |
Proterotheriidae sp. Ameghino 1887 placental | |
Camelidae sp. Gray 1821 camel | |
Erethizontidae sp. Bonaparte 1845 porcupine | |
Caviidae sp. Gray 1821 caviomorph | |
Actinopteri | |
Sciaenidae sp. Cuvier 1828 | |
Cichlidae sp. Heckel 1840 cichlid | |
Pimelodidae sp. Eigenmann and Eigenmann 1918 catfish | |
Doradidae sp. catfish | |
Serrasalmidae sp. Günther 1864 | |
Chondrichthyes | |
Sphyrnidae sp. Gill 1872 hammerhead shark | |
Carcharhinidae sp. Jordan and Evermann 1896 requiem shark | |
Pristidae sp. Bonaparte 1838 sawfish | |
Myliobatidae sp. Bonaparte 1838 eagle ray |