Barrancas Blancas (Oligocene of Argentina)

Also known as Camarones

Where: Chubut, Argentina (44.5° S, 66.0° W: paleocoordinates 46.2° S, 57.3° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Sarmiento Formation, Early/Lower Oligocene (33.9 - 28.4 Ma)

• lower section of the Sarmiento Formation

• bed-level stratigraphic resolution

Environment/lithology: fluvial; sandstone

Size class: macrofossils

Primary reference: M. T. Dozo, M. Ciancio, P. Bouza and G. Martínez. 2014. Nueva asociación de mamíferos del Paleógeno en el este de la Patagonia (provincia de Chubut, Argentina): implicancias biocronológicas y paleobiogeográficas. Andean Geology 41(1):224-247 [P. Mannion/P. Mannion]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 186572: authorized by Philip Mannion, entered by Philip Mannion on 26.06.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Notoungulata - Leontiniidae
Leontinia ? gaudryi Ameghino 1894 notoungulate
MPEF-PV 2559-2561
 Notoungulata - Isotemnidae
Isotemnidae indet. Ameghino 1897 notoungulate
MPEF-PV 2562
 Notoungulata - Notohippidae
Notohippidae indet. Ameghino 1894 notoungulate
MPEF-PV 2554-2557
Rhynchippus pumilus Ameghino 1897 notoungulate
MPEF-PV 2558
 Notoungulata - Archaeohyracidae
Pseudhyrax ? eutrachytheroides Ameghino 1901 notoungulate
MPEF-PV 2568 and 2569
 Notoungulata - Hegetotheriidae
Hegetotheriidae indet. Savage 1951 notoungulate
MPEF-PV 2570
 Notoungulata - Interatheriidae
Proargyrohyrax curanderensis Hitz et al. 2000 notoungulate
MPEF-PV 2565-2567
Eopachyrucos pliciferus Ameghino 1901 notoungulate
MPEF-PV 2564
 Cingulata - Dasypodidae
Parutaetus cf. chilensis Carlini et al. 2009 armadillo
MPEF-PV 2548
Meteutatus percarinatus Ameghino 1902 armadillo
MPEF-PV 2546
Machlydotherium ater Ameghino 1902 armadillo
MPEF-PV 2552
Archaeutatus sp. Ameghino 1902 armadillo
MPEF-PV 2547
Prozaedyus sp. Ameghino 1891 armadillo
MPEF-PV 2549
 Cingulata - Peltephilidae
Peltephilus undulatus Ameghino 1897 edentate
MPEF-PV 2550
 Phyllophaga -
Pseudoglyptodon cf. chilensis McKenna et al. 2006 edentate
MPEF-PV 2553
 Xenarthra - Glyptodontidae
Glyptatelinae indet. Castellanos 1932 glyptodon
MPEF-PV 2551
 Ungulata - Proterotheriidae
Proterotheriidae indet. Ameghino 1887 eutherian
MPEF-PV 2571