Toma Vieja (Conglomerado osifero) (Neogene of Argentina)

Where: Entre Rios, Argentina (31.7° S, 60.5° W: paleocoordinates 31.8° S, 58.3° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Conglomerado osifero Member (Ituzaingo Formation), Huayquerian (8.0 - 5.0 Ma)

• Informally known as the Conglomerado osifero (Frenguelli 1920).Traditionally regarded as lower levels of Itazaingo Formation, but Pérez (2013) assigned these beds to the upper levels of the Paraná Formation instead. Cione et al 2000 found that it corresponds to the Huayquerian SALMA or Tortonian.

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; conglomerate

• fine quartz gravel, clay and coarse chalcedony clasts as well as dissociated and fragmentary but abundant vones and teeth of continental and marine vertebrates.

Size class: macrofossils

Primary reference: D. Brandoni and A. A. Carlini. 2009. On the presence of Pyramiodontherium (Mammalia, Xenarthra, Megatheriidae) in the late Miocene of northeastern Argentina and its biogeographical implications. Rivista Italiana di Paleontologia e Stratigrafia 115(1):111-123 [P. Mannion/M. Kouvari/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 204596: authorized by Philip Mannion, entered by Miranta Kouvari on 13.09.2019, edited by Grace Varnham and Philip Mannion

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Crocodylia - Alligatoridae
Purussaurus sp.1 Barbosa Rodrigues 1892 crocodilian
MAS-PV 386 - tooth
Mammalia
 Panameriungulata - Proterotheriidae
Proterotheriinae indet.3 Ameghino 1885 placental
CICYTTP PV-M-3-390, partial right humerus
Brachytherium cuspidatum3 Ameghino 1883 placental
CICYTTP PV-M-3-354, right mandibular fragment
 Megatherioidea - Megatheriidae
Pyramiodontherium sp. Rovereto 1914 edentate
 Megatherioidea - Megalonychidae
Ortotherium sp.2 Ameghino 1885 edentate
MACN Pv 8916, left dentary
Torcellia paranense2 Kraglievich 1923 edentate
MAS 1372
Actinopteri
 Teleostei -
Perciformes indet.3 Bleeker 1859 perch-like fish
CICYTTP PV-P-3-353, incomplete skull