Cerro del Humo, Mustersan (Eocene of Argentina)

Also known as Pajarito

Where: Chubut, Argentina (45.8° S, 69.0° W: paleocoordinates 48.2° S, 59.1° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Mustersan zone, Mustersan (48.0 - 42.0 Ma)

• Mustersan SALMA, Late Eocene (Woodburne et al. 2014)

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by Scarritt Expedition in 1930; reposited in the AMNH

Primary reference: G. G. Simpson. 1967. The Ameghinos' localities for early Cenozoic mammals in Patagonia. Bulletin of the Museum of Comparative Zoology 136:63-76 [J. Zijlstra/J. Zijlstra]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 176289: authorized by Jelle Zijlstra, entered by Jelle Zijlstra on 06.02.2016

Creative Commons license: CC BY (attribution)

Taxonomic list

 Notoungulata - Notostylopidae
Otronia muehlbergi1 Roth 1902 notoungulate
AMNH 29484-6, isolated molars
 Notoungulata - Notopithecidae
"Notopithecinae indet." = Notopithecidae2
"Notopithecinae indet." = Notopithecidae2 Ameghino 1897 notoungulate
? Notopithecus amplidens or Guilielmoscottia plicifera. AMNH 29479, dentary p3-m2
 Notoungulata - Oldfieldthomasiidae
Tsamnichoria cabrerai n. gen. n. sp.2
Tsamnichoria cabrerai n. gen. n. sp.2 Simpson 1936 notoungulate
LPM 12-1739, right maxilla P2-M2 (type); 12-1742, dentary p4-m3; 12-1735, dentary p2-m3; 12-1738, three dentaries
 Notoungulata - Archaeohyracidae
Pseudhyrax eutrachytheroides2 Ameghino 1901 notoungulate
AMNH 29469, dentary m1-2
 Notoungulata - Isotemnidae
Rhyphodon lankesteri2 Roth 1899 notoungulate
AMNH 29414, partial skull
 Notoungulata -
Periphragnis harmeri2 Roth 1899 notoungulate
AMNH 29403, AMNH 29416, AMNH 2941, AMNH 29417, perhaps others
 Panameriungulata - Macraucheniidae
Polymorphis lechei1 Roth 1899 placental
AMNH 29840, mandible with p2-m3
Trilobodon brancoi2 Roth 1902 mammal
AMNH 29431, incisor