PBDB Collection

Puesto Estancia La Costa (Miocene of Argentina)

Also known as Corriguen Aike, Corriguen Kaik, Corriken Aike

Where: Santa Cruz, Argentina (51.2° S, 69.1° W)

• Paleocoordinates: 50.6° S, 66.9° W (Wright 2013)

• coordinate stated in text

• local area-level geographic resolution

When: Estancia La Costa Member (Santa Cruz Formation), Santacrucian (17.5 - 16.3 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 and tuffaceous, silty sandstone

• tuffaceous silty sands, andgreenish silty clays.

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/P. Wagner]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 142533: authorized by Carlos Jaramillo, entered by Juan Carrillo on 13.04.2013, edited by Jelle Zijlstra, Miranta Kouvari and Grace Varnham

Creative Commons license: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names

Aves
Gruiformes - Phorusrhacidae	Phorusrhacinae indet.⁷, Phorusrhacos longissimus, Psilopterus lemoinei¹ Phorusrhacinae indet.⁷ Ameghino 1899 terror bird MPEF-PV 11355: thoracic vertebra Phorusrhacos longissimus Ameghino 1887 terror bird Psilopterus lemoinei¹ Moreno and Mercerat 1891 terror bird
Falconiformes - Falconidae	Thegornis debilis⁸ Thegornis debilis⁸ Ameghino 1894 raptor BMNH-A 601, distal right tarsometatarsus
Mammalia
Meridiolestida -	Necrolestes patagonensis¹¹ Necrolestes patagonensis¹¹ Ameghino 1891 mammal
Astrapotheria - Astrapotheriidae	Astrapotherium magnum Astrapotherium magnum Owen 1853 placental
Notoungulata - Homalodotheriidae	Homalodotherium cunninghami¹¹ Homalodotherium cunninghami¹¹ Flower 1884 notoungulate
Notoungulata - Toxodontidae	Nesodon imbricatus⁵, Nesodon imbricatus¹¹, "Adinotherium ovinum" = Adinotherium ovinum¹¹, "Adinotherium ferum n. sp." = Adinotherium ovinum⁵ Nesodon imbricatus⁵ Owen 1846 notoungulate MACN-A 5145, mandible; MACN-A 774–775, cranium Nesodon imbricatus¹¹ Owen 1846 notoungulate "Adinotherium ovinum" = Adinotherium ovinum¹¹ Owen 1846 notoungulate "Adinotherium ferum n. sp." = Adinotherium ovinum⁵ Owen 1846 notoungulate MACN-A 5352–53, cranium, mandible, type
Notoungulata - Interatheriidae	"Protypotherium praerutilum" = Protypotherium praerutilum⁵, "Protypotherium attenuatum" = Protypotherium praerutilum⁵, Protypotherium claudum⁹, Protypotherium australe, "Interatherium robustum" = Interatherium extensus "Protypotherium praerutilum" = Protypotherium praerutilum⁵ Ameghino 1887 notoungulate MACN-A 3920–21, cranium, mandible ("Corriguen Aike") "Protypotherium attenuatum" = Protypotherium praerutilum⁵ Ameghino 1887 notoungulate Protypotherium claudum⁹ Ameghino 1889 notoungulate Protypotherium australe Moreno 1882 notoungulate "Interatherium robustum" = Interatherium extensus Fernández et al. 2023 notoungulate
Notoungulata - Hegetotheriidae	Hegetotherium mirabile Hegetotherium mirabile Ameghino 1887 notoungulate
Rodentia -	Neoreomys australis Neoreomys australis Ameghino 1887 caviomorph
Rodentia - Eocardiidae	"Eocardia fissa" = Dicardia fissa¹¹ "Eocardia fissa" = Dicardia fissa¹¹ Ameghino 1891 caviomorph
Rodentia -	Eocardia montana Eocardia montana Ameghino 1887 caviomorph
Rodentia - Neoepiblemidae	Perimys sp. Perimys sp. Ameghino 1887 caviomorph
Rodentia -	Steiromys duplicatus⁴, Steiromys detentus¹¹, Acarechimys constans³ Steiromys duplicatus⁴ Ameghino 1887 caviomorph MACN-A 10053–54, skull and right dentary; MACN-A 10055–78, maxillary, dentary, postcrania (both "Corriguen Kaik") Steiromys detentus¹¹ Ameghino 1887 caviomorph Acarechimys constans³ Ameghino 1887 caviomorph MPM-PV 4223 MPM-PV 15002
Rodentia - Octodontidae	Sciamys sp.¹¹ Sciamys sp.¹¹ Ameghino 1887 caviomorph
Rodentia -	Spaniomys modestus Spaniomys modestus Ameghino 1887 caviomorph
Rodentia - Acaremyidae	Acaremys murinus² Acaremys murinus² Ameghino 1887 caviomorph MACN A 4143 ("Corrigen Aike")
Primates - Homunculidae	Homunculus patagonicus n. gen. n. sp.¹⁰ Homunculus patagonicus n. gen. n. sp.¹⁰ Ameghino 1891 monkey
Panameriungulata - Adianthidae	Adianthus bucatus n. gen. n. sp.⁶ Adianthus bucatus n. gen. n. sp.⁶ Ameghino 1891 placental MACN A1812, dentary i2-m2, neotype
Panameriungulata - Proterotheriidae	Thoatherium minusculum, Licaphrium floweri, Tetramerorhinus cingulatum¹², Diadiaphorus robustus n. sp.⁵, Diadiaphorus majusculus⁵, "Tetramerorhinus mixtum n. sp." = Proterotherium australe⁵, "Tetramerorhinus mixtum" = Proterotherium australe¹² Thoatherium minusculum Ameghino 1887 placental Licaphrium floweri Ameghino 1887 placental Tetramerorhinus cingulatum¹² Ameghino 1891 placental MACN A8666 Diadiaphorus robustus n. sp.⁵ Ameghino 1894 placental MACN-A 9200–08, cranium and mandible Diadiaphorus majusculus⁵ Ameghino 1887 placental "Tetramerorhinus mixtum n. sp." = Proterotherium australe⁵ Burmeister 1879 placental MACN-A 8970–71, cranium, mandible, ulna, femur, tibia, type "Tetramerorhinus mixtum" = Proterotherium australe¹² Burmeister 1879 placental MACN A 8970
Panameriungulata - Macraucheniidae	Theosodon lydekkeri n. sp.⁵, Theosodon gracilis⁵ Theosodon lydekkeri n. sp.⁵ Ameghino 1887 placental MACN-A 2487–90, cranium and mandible (type); MACN-A 9269–88, cranium and mandible Theosodon gracilis⁵ Ameghino 1891 placental MACN-A 9297, mandible ("Corriguen Aike")
- Mylodontidae	Nematherium sp.¹¹ Nematherium sp.¹¹ Ameghino 1887 edentate
Megatherioidea - Megalonychidae	Hapalops "sp. 1", Hapalops "sp. 2", Hyperleptus sp.¹¹, "Eucholaeops "sp. 1"" = Eucholoeops, "Eucholaeops "sp. 2"" = Eucholoeops, "Eucholoeops ingens" = Eucholoeops ingens¹¹, "Eucholoeops fronto" = Eucholoeops ingens¹¹ Hapalops "sp. 1" Ameghino 1887 edentate Hapalops "sp. 2" Ameghino 1887 edentate Hyperleptus sp.¹¹ Ameghino 1891 edentate "Eucholaeops "sp. 1"" = Eucholoeops Amegino 1887 edentate "Eucholaeops "sp. 2"" = Eucholoeops Amegino 1887 edentate "Eucholoeops ingens" = Eucholoeops ingens¹¹ Ameghino 1887 edentate "Eucholoeops fronto" = Eucholoeops ingens¹¹ Ameghino 1887 edentate
Cingulata - Propalaehoplophoridae	Cochlops muricatus¹¹, Propalaehoplophorus incisivus¹⁸, Propalaehoplophorus minus¹⁸, Propalaehoplophorus australis¹¹ Cochlops muricatus¹¹ Ameghino 1889 edentate Propalaehoplophorus incisivus¹⁸ edentate MACN-A 7655, skull; 7656, skull Propalaehoplophorus minus¹⁸ Ameghino 1891 edentate MACN-A 4757, mandible Propalaehoplophorus australis¹¹ Moreno 1882 edentate
Cingulata - Peltephilidae	Peltephilus pumilus¹¹, Peltephilus strepens Peltephilus pumilus¹¹ Ameghino 1887 edentate Peltephilus strepens Ameghino 1887 edentate
Cingulata - Chlamyphoridae	Prozaedyus proximus¹¹, "Proeutatus oenophorus" = Proeutatus oenophorum¹¹, Stenotatus patagonicus¹¹ Prozaedyus proximus¹¹ Ameghino 1887 edentate "Proeutatus oenophorus" = Proeutatus oenophorum¹¹ Ameghino 1887 edentate Stenotatus patagonicus¹¹ Ameghino 1887 edentate
Xenarthra -	Adiastaltus habilis n. gen. n. sp.¹⁶ Adiastaltus habilis n. gen. n. sp.¹⁶ Ameghino 1893 edentate MACN A-7772, humerus, type; A-7773, ulna
Microbiotheria - Microbiotheriidae	Microbiotherium tehuelchum¹⁵ Microbiotherium tehuelchum¹⁵ Ameghino 1887 marsupial MACN 8504, dentary m2-4; 8505, skull with left M1-4
Paucituberculata - Palaeothentidae	Palaeothentes minutus, Palaeothentes lemoinei Palaeothentes minutus Ameghino 1887 marsupial Palaeothentes lemoinei Ameghino 1887 marsupial
Sparassodonta -	"Lycopsis torresi" = Lycopsis torresi¹⁷, "Anatherium oxyrhynchus n. sp." = Lycopsis torresi¹³ "Lycopsis torresi" = Lycopsis torresi¹⁷ Cabrera 1927 metatherian "Anatherium oxyrhynchus n. sp." = Lycopsis torresi¹³ Cabrera 1927 metatherian MACN 5930, dentary p2-3, m2-4, holotype
Sparassodonta - Borhyaenidae	"Prothylacynus patagonicus n. gen. n. sp." = Prothylacynus patagonicus¹³, "Prothylacynus brachyrhynchus n. sp." = Prothylacynus patagonicus¹³, "Napodonictis thylacynoides n. gen. n. sp." = Prothylacynus patagonicus¹³, Borhyaena tuberata¹⁷, Arctodictis munizi¹⁷ "Prothylacynus patagonicus n. gen. n. sp." = Prothylacynus patagonicus¹³ Ameghino 1891 metatherian "Prothylacynus brachyrhynchus n. sp." = Prothylacynus patagonicus¹³ Ameghino 1891 metatherian MACN 5926, dentary left c, p2, m1-4, right p2, m2-4 "Napodonictis thylacynoides n. gen. n. sp." = Prothylacynus patagonicus¹³ Ameghino 1891 metatherian MACN 5931, skull; MACN 5932, dentary with teeth; MACN 5933–5937, partial skeleton; all are one individual and part of the holotype Borhyaena tuberata¹⁷ Ameghino 1887 metatherian Arctodictis munizi¹⁷ Mercerat 1891 metatherian
Sparassodonta -	Perathereutes pungens¹¹, "Sipalocyon gracilis" = Sipalocyon gracilis, "Amphiproviverra crassa n. sp." = Sipalocyon gracilis¹⁴, "Cladosictis patagonica" = Cladosictis patagonica¹⁴, "Cladosictis lateralis n. sp." = Cladosictis patagonica¹⁴ Perathereutes pungens¹¹ Ameghino 1891 metatherian "Sipalocyon gracilis" = Sipalocyon gracilis Ameghino 1887 metatherian "Amphiproviverra crassa n. sp." = Sipalocyon gracilis¹⁴ Ameghino 1887 metatherian MACN 5957, dentary p2-m4; MACN 5958, maxilla P1-M4; cotypes "Cladosictis patagonica" = Cladosictis patagonica¹⁴ Ameghino 1887 metatherian MACN 5927, cranium; MACN 5928, dentary i1-p1, p3-m2; MACN 5929, vertebrae and other bones; MACN 6280, maxilla C-M4; MACN 6281, skull fragment; MACN 6282, vertebrae; MACN 6283, vertebrae; MACN 6284, proximal femur; MACN 6285, fibula "Cladosictis lateralis n. sp." = Cladosictis patagonica¹⁴ Ameghino 1887 metatherian MACN 5950, partial skull, holotype; MACN 5951, distal humerus, said to be same individual as 5950

¹Alvarenga and Holfing 2003; ²Arnal and Vucetich 2015; ³Arnal et al. 2017; ⁴Candela et al. 2012; ⁵Cassini et al. 2012; ⁶Cifelli and Soria 1983; ⁷Degrange et al. 2019; ⁸Degrange et al. 2012; ⁹Fernández et al. 2023; ¹⁰Kay et al. 2012; ¹¹Kay et al. 2012; ¹²MacPhee et al. 2021; ¹³Marshall 1979; ¹⁴Marshall 1981; ¹⁵Marshall 1982; ¹⁶McDonald et al. 2008; ¹⁷Prevosti et al. 2012; ¹⁸Vizcaíno et al. 2012