Estancia La Costa nivel fosilifero 1 (Miocene of Argentina)

Where: Argentina (51.1° S, 69.1° W: paleocoordinates 51.7° S, 63.4° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Estancia La Costa Member (Santa Cruz Formation), Santacrucian (17.5 - 16.3 Ma)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; tuff

• Estancia La Costa. The outlying stratigraphic column in the area near Estancia La Costa was previously described (Tauber, 1996), when 5 fossiliferous levels were defined (NF 1, 2, 2.1, 3 and 4). These levels are found in a succession of clays and tuffs interspersed and exposed in the intra-tidal zone and at the base of the cliff. The first stratigraphic level of this succession is a solid gray-green clay with small sub-spherical and irregular calcareous concretions, and frequent pedotubules of reduced caliber, which forms the fossiliferous level 1. From this layer comes one of the materials assigned to Necrolestes patagonensis.

Size class: macrofossils

Primary reference: A. A. Tauber, C. A. Luna, and M. E. Palacios. 2005. El registro de Necrolestes patagonensis Ameghino, 1891 (Mammalia) de la Formación Santa Cruz (Mioceno), Patagonia Austral. XVI Congreso Geológico Argentino V:157-164 [P. Mannion/M. Kouvari]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 206768: authorized by Philip Mannion, entered by Miranta Kouvari on 28.11.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

 Meridiolestida -
Necrolestes patagonensis Ameghino 1891 mammal
CORD-PZ 1500