Punta San Andres (Zone of Paractenomys chapadmalensis) (Pliocene of Argentina)

Also known as beds from paleosol 11 to paleosol 13 of Zarate, 1989

Where: Buenos Aires, Argentina (38.1° S, 57.7° W: paleocoordinates 38.2° S, 56.8° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Zone of Paractenomys chapadmalensis - Marplatan (Sanandresian) zone, San Andres Formation, Late/Upper Pliocene (3.6 - 2.6 Ma)

• This zone is the biostratigraphic basis of Sanandresian subage of Marplatan.

•San Andes “Formation” of Kraglievich, 1952); type locality, Punta San And&

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; paleosol/pedogenic lithology not reported

Size classes: macrofossils, mesofossils

Primary reference: A. L. Cione and E. P. Tonni. 1996. Reassesment of the Pliocene-Pleistocene continental time scale of Southern South America. Correlation of the type Chapadmalalan with Bolivian sections. Journal of South American Earth Sciences 9(3/4):221-236 [P. Mannion/M. Kouvari/M. Kouvari]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 199160: authorized by Philip Mannion, entered by Miranta Kouvari on 23.01.2019, edited by Kateryn Pino

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Didelphimorphia - Didelphidae
Lestodelphys sp. Tate 1934 Patagonian opussum
Shared with younger zones
 Polydolopimorphia - Argyrolagidae
Microtragulus reigi Simpson 1970 metatherian
Taxon with last record on this zone
 Notoungulata - Hegetotheriidae
Paedotherium bonaerense Ameghino 1887 notoungulate
Taxon with last record on this zone
 Notoungulata - Mesotheriidae
Mesotherium cristatum Serres 1857 notoungulate
Shared with younger zones
 Cingulata - Pampatheriidae
Pampatherium sp. Ameghino 1875 edentate
 Cingulata -
Neuryurus sp. Ameghino 1889 edentate
 Cingulata - Dasypodidae
Tolypeutes sp. Illiger 1811 three-banded armadillo
Chaetophractus villosus Desmarest 1804 big hairy armadillo
Eutatus seguini Gervais 1867 armadillo
 Megatherioidea - Megatheriidae
Megatherium sp. Cuvier 1796 edentate
 Perissodactyla - Equidae
Hippidion devillei Gervais 1855 horse
 Artiodactyla - Camelidae
Camelidae indet. Gray 1821 camel
 Artiodactyla - Tayassuidae
Platygonus marplatensis Reig 1952 peccary
Taxon with last record on this zone
 Rodentia - Abrocomidae
Abrocoma sp. Waterhouse 1837 chinchilla rat
 Rodentia - Octodontidae
Abalosia castellanosi Rusconi 1933 caviomorph
exclusive to this zone
Pithanotomys sp. Ameghino 1887 caviomorph
Taxon with last record on this zone
 Rodentia - Echimyidae
Eumysops sp. Ameghino spiny rat
Taxon with last record on this zone
 Rodentia - Ctenomyidae
Eucelophorus chapalmalensis Ameghino 1908 caviomorph
Taxon with last record on this zone
Paractenomys chapadmalensis Ameghino 1908 caviomorph
index fossil
 Rodentia - Caviidae
Dolichotis salinicola Burmeister 1876 mara
Palaeocavia sp. Ameghino 1889 caviomorph
Taxon with last record on this zone
Neochoerus sp. Hay 1926 caviomorph
Shared with younger zones
Microcavia reigi caviomorph
 Rodentia - Cricetidae
Sigmodontinae indet. Wagner 1843 mouse
Panchomys steppani Pardiñas 1997 mouse
Cholomys pearsoni Reig 1980 mouse
"Abrothrix" magnus Reig 1987 mouse
Reithrodon auritus Fischer 1814 bunny rat
"Scapteromys" hershkovitzi Reig 1994 swamp rat
Akodon (Akodon) lorenzinii Reig 1987 akodont
Taxon with last record on this zone