Also known as Estancia Felton
Where: Santa Cruz, Argentina (51.6° S, 69.5° W: paleocoordinates 52.2° S, 63.7° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Estancia La Costa Member (Santa Cruz Formation), Santacrucian (17.5 - 16.3 Ma)
• the fossiliferous tuff yielded 40Ar/39Ar ages of 16.45 +/- 0.14, 16.5 +/- 0.2, and 16.5 +/- 0.3 Ma based on "laser incremental-heating analyses of plagioclase"
•Gonzalez and Scilalto-Yané 2008: The Santa Cruz Formation on this site emerges along the canyons of the Gallegos River estuary. Tauber et al. (2004) identified three fossiliferous levels in Killik Aike Norte, so we are not sure of the exact level of provenance of the mentioned findings. It should be noted that the KAN 2 level is the most accessible and rich in fossils; however, a large number of fallen blocks of the upper strata with fossils are also found at this level (Tauber et al., 2005). These authors tentatively correlate the KAN 2 level with the fossil level 6, which emerges in the intertidal zone, in front of Corriguen Aike (Estancia de La Estancia La Costa) and in the southern sector of Cañadón Silva (Tauber, 1994). If this is correct, the origin of the YPM PU 15611, YPM PU 15565 and MPM-PV 1811 materials would not be below the fossiliferous level 6, that is, it would correspond to the higher levels of Protypotherium attenuatum Biozone 1 , in the Estancia La Costa Member (Tauber et al., 2004).
• group of beds-level stratigraphic resolution
Environment/lithology: terrestrial; tuff
Size class: macrofossils
Collection methods: specimen is in the Museo Regional Provincial "Padre Manuel Jesús Molina" Padre Molina, Vertebrate Paleontology Collection
•Gonzalez and Scilalto-Yané 2008: The YPM PU 15565 specimen was collected by A. Mercerat in the town of Killik Aike, located in the old Estancia Felton (province of Santa Cruz), and delivered to the Princeton University expedition by H.S. Felton (previous data according to the repository file), who at that time (1896) was the owner of the stay. In this locality, and as a result of the same trip, YPM PU 15611 material was collected, which was wrongly listed in the catalogs of the repository as Proeutatus sp.
Primary reference: M. F. Tejedor, A. A. Tauber, A. L. Rosenberger, C. C. Swisher, III, and M. E. Palacios. 2006. New primate genus from the Miocene of Argentina. Proceedings of the National Academy of Sciences 103:5437-5441 [J. Alroy/J. Alroy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 87314: authorized by John Alroy, entered by John Alroy on 14.03.2009, edited by Jelle Zijlstra and Miranta Kouvari
Creative Commons license: CC BY (attribution)