Cañadón Lagarto (Eocene of Argentina)

Where: Chubut, Argentina (45.9° S, 68.4° W: paleocoordinates 48.4° S, 58.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Casamayoran mammal zone, Casamayoran (56.0 - 48.0 Ma)

• Casamayoran SALMA (now split into Vacan and Barrancan), Middle to Late Eocene (Woodburne et al. 2014).

Environment/lithology: terrestrial; lithology not reported

Size class: mesofossils

Collected by Feruglio

Primary reference: G. G. Simpson. 1948. The beginning of the age of mammals in South America. Part I. Bulletin of the American Museum of Natural History 91:1-232 [D. Croft/D. Croft/R. Butler]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 176304: authorized by Jelle Zijlstra, entered by Jelle Zijlstra on 06.02.2016

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Astrapotheria - Trigonostylopidae
Trigonostylops sp. Ameghino 1897 placental
MGP-PD 29118: rigth and left m3?
 Notoungulata - Isotemnidae
Pleurostylodon sp. Ameghino 1897 notoungulate
MGP-PD 29074: A, right m1?; B, maxilla with right P2-3; C, right m2
 Notoungulata - Notopithecidae
Notopithecus adapinus Ameghino 1897 notoungulate
MGP-PD 31361: maxilla with left M1-3. MGP-PD 31681: left M2 and M3 isolated but associated
 Notoungulata - Notostylopidae
Notostylops sp. Ameghino 1897 notoungulate
MGP-PD 29061 A, m1-2; B, p4-m1; C, p4-m1; D, m1-2. See also ref. 10369.
 Panameriungulata - Didolodontidae
Didolodus sp. Ameghino 1897 placental
MGP-PD 29039, upper tooth