PBDB Collection

Cañadon del Tordillo (Miocene of Argentina)

Where: Neuquén, Argentina (40.4° S, 70.2° W: paleocoordinates 41.0° S, 65.8° W)

• coordinate stated in text

• local area-level geographic resolution

When: Collón Cura Formation, Colloncuran (15.5 - 13.8 Ma)

• Fossils are found just above or below Pilcaniyeu Ignimbritic member (Fig 3).

•Most of the fossils and all the primates occur in paleosols at the top of the ignimbrite member or just above it.

• member-level stratigraphic resolution

Environment/lithology: terrestrial; tuff

• flow tuff

Size classes: macrofossils, mesofossils

Collected in 1990-1991; reposited in the MLP

Collection methods: bulk, surface (in situ),

• In 1990 and 1991, a group from Museo de La Plata (MLP) and Duke University returned to Cañadón del Tordillo and made another, larger collection of fossil vertebrates.

•

•Vera et al 2017: Some specimens are new and some are un-published specimens of Roth’s (1899) old collection curated at Museo de La Plata.

Primary reference: M. G. Vucetich, M. M. Mazzoni, and U. F. J. Pardiñas. 1993. Los roedores de la Formación Collon Curá (Mioceno Medio), y la ignimbrita Pilcaniyeu. Cañadón del Tordillo, Neuquen. Ameghiniana 30(4):361-381 [C. Jaramillo/J. Carrillo]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 141175: authorized by Carlos Jaramillo, entered by Juan Carrillo on 21.03.2013, edited by Miranta Kouvari, Grace Varnham and Kateryn Pino

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Mammalia
Paucituberculata - Caenolestidae	Stilotherium cf. dissimile¹ Stilotherium cf. dissimile¹ Ameghino 1887 marsupial MLP 91-IX-1-50
Notoungulata - Interatheriidae	"Protypotherium endiadys" = Protypotherium praerutilum⁸ "Protypotherium endiadys" = Protypotherium praerutilum⁸ Ameghino 1887 notoungulate
Cingulata - Peltephilidae	Peltephilus nanus⁵, Peltephilus pumilus⁵ Peltephilus nanus⁵ Ameghino 1898 edentate MLP 91-IV-1-35 and MLP 91-IV-1-134 Peltephilus pumilus⁵ Ameghino 1887 edentate MLP 91-IV-1-62
Rodentia - Coendidae	Neosteiromys tordillense n. sp. Neosteiromys tordillense n. sp. Vucetich et al. 1993 rodent 5 specimens
Rodentia -	Protacaremys denisae n. sp. Protacaremys denisae n. sp. Vucetich et al. 1993 caviomorph
Rodentia - Echimyidae	Maruchito trilofodonte n. gen. n. sp. Maruchito trilofodonte n. gen. n. sp. Vucetich et al. 1993 spiny rat 8 specimens
Rodentia - Acaremyidae	Galileomys colloncurensis n. sp.⁹ Galileomys colloncurensis n. sp.⁹ Vucetich and Kramarz 2003 caviomorph
Rodentia -	Acarechimys sp., Acarechimys minutissimus², Acarechimys cf. minutus², Acarechimys minutus², Neoreomys sp. Acarechimys sp. Patterson 1965 caviomorph Acarechimys minutissimus² Ameghino 1887 caviomorph MLP 91-IX-1-95 MLP 91-IX-1-199b MLP 91-IX-1-201a MLP 91-IX-1-201b MLP 91-IX-1-201c Acarechimys cf. minutus² Patterson and Pascual 1967 caviomorph MLP 91-IV-1-15 Acarechimys minutus² Patterson and Pascual 1967 caviomorph MLP 91-IX-1-199a MLP 91-IX-1-200 Neoreomys sp. Ameghino 1887 caviomorph
Rodentia - Dasyproctidae	Dasyproctidae indet., Alloiomys sp. Dasyproctidae indet. Gray 1825 caviomorph Alloiomys sp. Vucetich 1977 caviomorph
Rodentia - Eocardiidae	Eocardiidae indet. Eocardiidae indet. Ameghino 1891 caviomorph
Rodentia - Chinchillidae	Prolagostomus sp., Prolagostomus pusillus⁷ Prolagostomus sp. Ameghino 1887 chinchilid Prolagostomus pusillus⁷ Ameghino 1887 chinchilid
Rodentia - Erethizontidae	Branisamyopsis sp.³ Branisamyopsis sp.³ Candela 2003 porcupine
Primates - Pitheciidae	"Propithecia neuquenensis n. gen. n. sp." = Proteropithecia neuquenensis⁶ "Propithecia neuquenensis n. gen. n. sp." = Proteropithecia neuquenensis⁶ Kay et al. 1998 monkey
Primates - Homunculidae	Soriacebus sp.⁴ Soriacebus sp.⁴ Fleagle et al. 1987 monkey

¹Abello et al. 2021; ²Arnal et al. 2017; ³Candela 2003; ⁴Fleagle and Kay 1997; ⁵González-Ruiz et al. 2013; ⁶Kay et al. 1998; ⁷McGrath et al. 2023; ⁸Vera et al. 2017; ⁹Vucetich and Kramarz 2003