Yegua Quemada (Miocene of Argentina)

Also known as Cañadón de la Yegua Quemada, Quequa-Quemada, Tagua Quemada

Where: Santa Cruz, Argentina (50.3° S, 69.0° W: paleocoordinates 51.0° S, 63.4° W)

• coordinate stated in text

• local area-level geographic resolution

When: Santa Cruz Formation, Santacrucian (17.5 - 16.3 Ma)

• formation-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: mesofossils

Collected by C. Ameghino

Primary reference: S. F. Vizcaíno, R. F. Kay, and M. S. Bargo. 2012. Background for a paleoecological study of the Santa Cruz Formation (late Early Miocene) on the Atlantic Coast of Patagonia. In S. F. Vizcaí­no, R. F. Kay, M. S. Bargo (eds.), Early Miocene Paleobiology in Patagonia: High-Latitude Paleocommunities of the Santa Cruz Formation 1-22 [J. Zijlstra/J. Zijlstra/J. Zijlstra]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 176566: authorized by Jelle Zijlstra, entered by Jelle Zijlstra on 17.02.2016, edited by Grace Varnham

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Aves
 Falconiformes - Falconidae
Thegornis musculosus3
Thegornis musculosus3 Ameghino 1894 raptor
BMNH-A 600, fragmentary right tarsometatarsus
 Gruiformes - Phorusrhacidae
Phorusrhacos longissimus2, Patagornis marshi2, Psilopterus lemoinei2
Phorusrhacos longissimus2 Ameghino 1887 terror bird
Patagornis marshi2 Moreno and Mercerat 1891 terror bird
Psilopterus lemoinei2 Moreno and Mercerat 1891 terror bird
Mammalia
 Cingulata - Chlamyphoridae
Prozaedyus proximus7
Prozaedyus proximus7 Ameghino 1887 edentate
MACN-A 7806–1828, mandible, postcrania
 Sparassodonta -
"Sipalocyon gracilis" = Sipalocyon gracilis4, "Sipalocyon curtus n. sp." = Sipalocyon gracilis4
"Sipalocyon gracilis" = Sipalocyon gracilis4 Ameghino 1887 metatherian
MACN 9389, dentary p3-m2; MACN 9390, M1; MACN 9391, M3; MACN 9392, vertebra and tooth fragments; all one specimen
"Sipalocyon curtus n. sp." = Sipalocyon gracilis4 Ameghino 1887 metatherian
MACN 5962, caudal vertebra; MACN 5960, dentary p1-2; MACN 5961, tooth fragments; all one specimen
 Sparassodonta - Borhyaenidae
Borhyaena tuberata6
Borhyaena tuberata6 Ameghino 1887 metatherian
 Microbiotheria - Microbiotheriidae
Microbiotherium tehuelchum5
Microbiotherium tehuelchum5 Ameghino 1887 marsupial
MACN 8472, dentary p1-2; 8479, dentary p1-m2; 8480, dentary p3-m4; 8503, dentary p1, m3
 Paucituberculata - Palaeothentidae
Palaeothentes intermedius1, Palaeothentes lemoinei1
Palaeothentes intermedius1 Ameghino 1887 marsupial
Palaeothentes lemoinei1 Ameghino 1887 marsupial
1Abello et al. 2012; 2Alvarenga and Holfing 2003; 3Degrange et al. 2012; 4Marshall 1981; 5Marshall 1982; 6Prevosti et al. 2012; 7Vizcaíno et al. 2012