Monte Hermoso (Neogene of Argentina)

Where: Buenos Aires, Argentina (38.0° S, 61.0° W: paleocoordinates 38.1° S, 59.6° W)

• coordinate based on political unit

• local area-level geographic resolution

When: Monte Hermoso Formation, Montehermosan (6.8 - 4.0 Ma)

• Marine cliffs

•Quattrocchio et al. 2009: Monte Hermoso, the red earth cliffs near Punta Alta

• member-level stratigraphic resolution

Environment/lithology: terrestrial; siltstone

Size classes: macrofossils, mesofossils

Collected by Darwin and others in 1833 and others

• Type: left-lower premolar-molar

•Paratype: Fragment of left mandible with incisor alveolus

Primary reference: R. Pascual and P. Bondesio. 1961. Un nuevo Cardiatheriinae (Rodentia, Hydrochoeridae) de la Formacion Monte Hermoso (Pliocene Superior) de la Provincia de Buenos Aires. Algunas consideraciones sobre la evolucion morfolofica de los Molariformes de los Cardiatheriinae. Ameghiniana 2(6):93-109 [J. Alroy/J. Wertheim/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 13503: authorized by John Alroy, entered by Jill Wertheim on 09.04.2002, edited by Mark Uhen, Juan Carrillo, Richard Hulbert, Jelle Zijlstra, Evangelos Vlachos and Miranta Kouvari

Creative Commons license: CC BY (attribution)

Taxonomic list

• Fernicola, et al. 2009: Darwin visited this locality on the 19th Oct 1833
unclassified
  -
Pisces
  -
"Pisces indet." = Osteichthyes8
"Pisces indet." = Osteichthyes8 Huxley 1880 bony fish
Reptilia
 Testudines - Pantestudinidae
Testudo formosa n. sp.8, "Testudo australis n. sp." = Chelonoidis australis8, "Testudo praestans n. sp." = Chelonoidis australis10, "Chelonoidis santafecina n. sp." = Chelonoidis australis1
Testudo formosa n. sp.8 Moreno 1889 turtle
MLP, probably lost
"Testudo australis n. sp." = Chelonoidis australis8 Moreno 1889 turtle
MLP 26-400
"Testudo praestans n. sp." = Chelonoidis australis10 Moreno 1889 turtle
MACN 5195, partial shell
"Chelonoidis santafecina n. sp." = Chelonoidis australis1 Moreno 1889 turtle
Aves
 Cariamae - Phorusrhacidae
Mesembriornis milneedwardsi9, "Palaeociconia australis" = Hermosiornis australis9
Mesembriornis milneedwardsi9 Moreno 1889 terror bird
"Palaeociconia australis" = Hermosiornis australis9 Moreno 1889 terror bird
 Cathartiformes - Cathartidae
Dryornis pampeanus n. gen. n. sp.9
Dryornis pampeanus n. gen. n. sp.9 Moreno and Mercerat 1891 New World vulture
 Falconiformes - Falconidae
Foetopterus ambiguus n. gen. n. sp.9
Foetopterus ambiguus n. gen. n. sp.9 Moreno and Mercerat 1891 raptor
 Rheiformes - Rheidae
Protorhea azarae n. gen. n. sp.9
Protorhea azarae n. gen. n. sp.9 Moreno and Mercerat 1891 rhea
 Tinamiformes - Tinamidae
Tinamisornis intermedius3 Rovereto 1914 tinamou
=Roveretornis intermedius Brodkorb 1961
Tinamisornis parvulus3 Rovereto 1914 tinamou
Mammalia
 Notoungulata - Haplodontheriidae
Trigodon gaudryi8 Ameghino 1887 notoungulate
 Rodentia - Hydrochoeridae
"Phugatherium cataclysticum" = Phugatherium4, Anchimysops villalobosi4, "Chapalmatherium perturbidum" = Phugatherium cataclisticum4, "Neoanchimys pisanoi n. gen. n. sp." = Phugatherium
"Phugatherium cataclysticum" = Phugatherium4 caviomorph
Anchimysops villalobosi4 Kraglievich 1927 caviomorph
"Chapalmatherium perturbidum" = Phugatherium cataclisticum4 Ameghino 1887 caviomorph
"Neoanchimys pisanoi n. gen. n. sp." = Phugatherium caviomorph
 Rodentia - Caviidae
Hydrochoerus sp.4 Brisson 1762 capybara
found by Darwin
 Rodentia - Ctenomyidae
Ctenomys priscus4 Owen 1840 caviomorph
found by Darwin
 Carnivora - Procyonidae
Parahyaenodon argentinus5 Ameghino 1904 procyonid carnivore
 Cingulata - Dasypodidae
"Dasypotherium australis" = Macroeuphractus8
"Dasypotherium australis" = Macroeuphractus8 armadillo
 Xenarthra - Myrmecophagidae
Nunezia caroloameghinoi n. gen. n. sp.7
Nunezia caroloameghinoi n. gen. n. sp.7 Kraglievich 1934 giant anteater
MACN 6125, left third metacarpal
 Sparassodonta -
Notocynus hermosicus n. gen. n. sp.6
Notocynus hermosicus n. gen. n. sp.6 Mercerat 1891 metatherian
MLP 11-91, dentary m3, holotype
Tetrapromotho argentinus
  -
Tetrapromotho argentinus n. gen. n. sp.2
Tetrapromotho argentinus n. gen. n. sp.2 Ameghino 1907