Estancia Criado (Miocene of Argentina)

Also known as Pilcaniyeu viejo

Where: Río Negro, Argentina (41.0° S, 70.6° W: paleocoordinates 41.6° S, 66.2° W)

• coordinate stated in text

• local area-level geographic resolution

When: Tobaceo Las Bayas Member (Collón Cura Formation), Colloncuran (15.5 - 13.8 Ma)

• formation-level stratigraphic resolution

Environment/lithology: fluvial; volcaniclastic tuff

• Tobas cineríticas de composición dacítica, de depositación subaerea y estratificación poco definida.

Size class: macrofossils

Reposited in the MLP

Primary reference: P. Bondesio, J. Rabassa, R. Pascual, M. G. Vucetich, and G. J. Scillato-Yané. 1980. La formación Collon-Cura de Pilcaniyeu Viejo y sus alrededores (Río Negro, República Argentina) su antiguedad y las condiciones ambientales según su distribución su litogenesis y sus vertebrados. Actas del Segundo Congreso Argentino de Paleontología y Bioestratigrafía y Primer Congreso Latinoamericano de Paleontología 3:85-99 [C. Jaramillo/J. Carrillo]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 140691: authorized by Carlos Jaramillo, entered by Juan Carrillo on 14.03.2013, edited by Miranta Kouvari and Evangelos Vlachos

Creative Commons license: CC BY (attribution)

Taxonomic list

• 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.
Reptilia
 Testudines - Pantestudinidae
Chelonoidis sp.1 Fitzinger 1835 turtle
Mammalia
 Notoungulata - Hegetotheriidae
Pachyrukhos sp. Ameghino 1885 notoungulate
Hegetotherium sp. Ameghino 1887 notoungulate
 Notoungulata - Interatheriidae
Interatherium sp. Ameghino 1887 notoungulate
 Notoungulata - Protypotheriidae
"Protypotherium sp." = Protypotherium, Protypotherium endiadys3, Protypotherium colloncurensis3, "Epipatriarchus sp." = Protypotherium
"Protypotherium sp." = Protypotherium Ameghino 1882 notoungulate
Protypotherium endiadys3 Roth 1898 notoungulate
Protypotherium colloncurensis3 Vera et al. 2017 notoungulate
"Epipatriarchus sp." = Protypotherium Ameghino 1882 notoungulate
 Rodentia - Chinchillidae
Prolagostomus sp. Ameghino 1887 chinchilid
 Rodentia - Eocardiidae
Megastus sp. Roth 1898 caviomorph
 Rodentia -
Stichomys sp. Ameghino 1887 caviomorph
 Cingulata - Dasypodidae
Proeutatus sp. Ameghino 1891 armadillo
Stenotatus sp. Ameghino 1891 armadillo
"Prozaedius sp." = Prozaedyus Ameghino 1891 armadillo
 Cingulata - Peltephilidae
Peltephilidae indet.2 edentate
MLP 74-II-1-23
 Ungulata - Macraucheniidae
Theosodon sp. Ameghino 1887 eutherian