Cañadón Las Totoras level 10 (Miocene of Argentina)

Where: Santa Cruz, Argentina (51.4° S, 69.0° W: paleocoordinates 52.0° S, 63.3° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Protypotherium australe mammal zone, Estancia La Costa Member (Santa Cruz Formation), Santacrucian (17.5 - 16.3 Ma)

• Tauber, 1997: nivel fosilífero 10 (Tauber, 1997), last level of Estancia La Coste. Estancia La Angelina follows (>10)

•All the remains come from sediments assigned to the Santa Cruz Formation (late early Miocene).

•Tauber (1997) proposes a preliminary biostratigraphic scheme based on the differentiation of two Biozones:

•the Interval Biozone of Protypotherium attenuatum Ameghino, 1887 (Interatheriidae) (fossiliferous levels 3 to 7) and the Interval Biozone of Protypotherium australe Ameghino, 1887 (Interatheriidae) (fossiliferous levels 8 to 10).

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size classes: macrofossils, mesofossils

Primary reference: L. R. Gonzalez and G. J. Scilalto-Yané. 2008. Una nueva especie de Stegotherium Ameghino (Xenarthra, Dasypodidae, Stegotheriini) del Mioceno de la provincia de Santa Cruz (Argentina). Ameghiniana 45(4):641-648 [P. Mannion/M. Kouvari]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 204358: authorized by Philip Mannion, entered by Miranta Kouvari on 06.09.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

 Megatherioidea - Megalonychidae
Hapalops sp. Ameghino 1887 edentate
 Cingulata - Propalaehoplophoridae
"Propalaehoplophorinae indet." = Propalaehoplophoridae Ameghino 1891 edentate
Eucinepeltus complicatus Brown 1903 edentate
 Cingulata - Chlamyphoridae
"Proeutatus oenophorus" = Proeutatus oenophorum
"Proeutatus oenophorus" = Proeutatus oenophorum Ameghino 1887 edentate
 Xenarthra -
"Stegotherium tessellatum" = Stegotherium tesselatum, Stegotherium tauberi
"Stegotherium tessellatum" = Stegotherium tesselatum Ameghino 1887 edentate
Stegotherium tauberi Gonzalez and Scilalto-Yané 2008 edentate
CORD-PZ 1352
 Astrapotheria - Astrapotheriidae
"Astrapotherium cf. magnum" = Astrapotherium magnum, "Astrapotherium nanum" = Astrapotherium magnum
"Astrapotherium cf. magnum" = Astrapotherium magnum Owen 1853 placental
"Astrapotherium nanum" = Astrapotherium magnum Owen 1853 placental
Astrapotherium nanum?
 Notoungulata - Toxodontidae
Nesodon imbricatus Owen 1846 notoungulate
Nesodon cf. imbricatus Owen 1846 notoungulate
Adinotherium cf. ovinum Owen 1846 notoungulate
 Notoungulata - Interatheriidae
Protypotherium australe Moreno 1882 notoungulate
 Rodentia -
Neoreomys australis Ameghino 1887 caviomorph
 Panameriungulata - Proterotheriidae
Thoatherium minusculum Ameghino 1887 placental