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Gateway to the Paleobiology Database
Campo Barranca (Miocene of Argentina)

Where: Santa Cruz, Argentina (51.0° S, 69.2° W: paleocoordinates 51.8° S, 62.4° W)

• coordinate stated in text

• local area-level geographic resolution

When: Estancia La Costa Member (Santa Cruz Formation), Early/Lower Miocene (23.0 - 16.0 Ma)

• Dates from three levels in the lower one-third of the Santa Cruz fossiliferous beds at Monte Observación, rangebetween 16.42 Ma and 16.18 Ma and between 16.56 Ma and 16.28 Ma at Monte León. The dates are not wholly concordant but permit the assignment of the bulk of the coastal Santacrucian faunas to the late–early Miocene

• formation-level stratigraphic resolution

Environment/lithology: terrestrial; green, sandy claystone

• Greenish silty clay. In places, the clay is finely laminated — some layers have ripple marks and others are carbon-rich. Elsewhere, it is bioturbated, preserving calcified root casts, and has poorly defined bedding.

Size class: macrofossils

Collected in 2003-2009

Primary reference: S. F. Vizcaíno, M. S. Bargo, R. F. Kay, R. A. Fariña, M., Di Giacomo, J. M. G. Perry, F. J. Prevosti, N. Toledo, G. H. Cassini, and J. C. Fernicola. 2010. A baseline paleoecological study of the Santa Cruz Formation (late-early Miocene) at the Atlantic coast of Patagonia, Argentina. Palaeogeography, Palaeoclimatology, Palaeoecology 292(3-4):507-519 [C. Jaramillo/J. Carrillo] more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 142529: authorized by Carlos Jaramillo, entered by Juan Carrillo on 13.04.2013, edited by Jelle Zijlstra

Creative Commons license: CC BY (attribution)