Also known as Estancia Felton, Felton’s Estancia
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"
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•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
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, Miranta Kouvari, Grace Varnham, Philip Mannion and Kateryn Pino
Creative Commons license: CC BY (attribution)
Taxonomic list
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Sipalocyon gracilis11 Ameghino 1887 metatherian AMNH 9254, skull and dentary; PU 15373, skull, postcrania
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Prothylacynus patagonicus10 Ameghino 1891 metatherian AMNH 9561, maxilla M2-4; BM(NH) M9178, posterior part of dentary with teeth; PU 15700, partial skull and skeleton
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"Homunculus patagonicus" = Homunculus patagonicus9, "Killikaike blakei n. gen. n. sp." = Homunculus patagonicus
"Homunculus patagonicus" = Homunculus patagonicus9 Ameghino 1891 monkey MPM-PV 3502, cranium, from "base of ash level KAN"; MPM-PV 1607, right M1-3, from "KAN ash level"; probably MACN-A 12498, right dentary with i2-m2, original holotype of _Homunculus patagonicus_ but now lost
"Killikaike blakei n. gen. n. sp." = Homunculus patagonicus Ameghino 1891 monkey | |
Stegotherium tauberi n. sp.7
Stegotherium tauberi n. sp.7 Gonzalez and Scilalto-Yané 2008 edentate nivel KAN 2 (Tauber et al., 2004)
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Prepotherium filholi n. sp.1
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Pachyrukhos moyani3 Ameghino 1885 notoungulate AMNH 9242, femur, tibia; 9283, cranium, mandible; 9285, ulna, femur; 9481, humerus, ulna
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"Interatherium robustum" = Interatherium extensus3, Interatherium rodens6, Protypotherium praerutilum5, Protypotherium australe3
"Interatherium robustum" = Interatherium extensus3 Fernández et al. 2023 notoungulate AMNH 9284, cranium and mandible; also FMNH P13057 see MacPhee et al. 2021
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| Aves | |
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Psilopterus lemoinei4 Moreno and Mercerat 1891 terror bird MPM-PV3649, anterior part of a skull including the upper bill and jugal bar, and part of the interorbital septum; MPM-PV3650, right humerus, right scapula, right femur, both tibiotarsi, right fibula, and both tarsometatarsi, all from the same individual
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