Lake Chapala (main fossil level) (Pleistocene of Mexico)

Also known as Lago Chapala

Where: Jalisco, Mexico (20.3° N, 103.2° W: paleocoordinates 20.3° N, 103.0° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Chapala Formation, Pleistocene (2.6 - 0.0 Ma)

• Rancholabrean according to Lucas (2008)

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Primary reference: I. Ferrusquia-Villafranca. 1978. Bol Univ Nac Aut Mex Inst Geol 101:193-321 [J. Alroy/J. Alroy]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 20285: authorized by John Alroy, entered by John Alroy on 30.04.1994, edited by Philip Mannion and Grace Varnham

Creative Commons license: CC BY (attribution)

Taxonomic list

• said to be early or "early Middle" Pleistocene and older than Cedazo
Mammalia
 Rodentia - Caviidae
Neochoerus aesopi3 Leidy 1853 caviomorph
 Rodentia - Cricetidae
Sigmodon sp.3 Say and Ord 1825 cotton rat
Neotoma sp.3 Say and Ord 1825 pack rat
 Lagomorpha - Leporidae
Lepus sp.3 Linnaeus 1758 hare
 Perissodactyla - Tapiridae
Tapirus sp.3 Brisson 1762 tapir
 Perissodactyla - Equidae
Equus conversidens Owen 1869 horse
Equus ? excelsus3 Leidy 1858 horse
Equus cf. francisci3 Hay 1915 horse
Equus niobrarensis3 Hay 1913 horse
 Artiodactyla - Tayassuidae
Platygonus compressus3 Leconte 1848 peccary
 Artiodactyla - Camelidae
Camelops sp. Leidy 1854 camel
Camelops hesternus3 Leidy 1873 camel
Lamini indet.3 Webb 1965 camel
 Artiodactyla - Cervidae
Odocoileus sp.3 Rafinesque 1832 New World deer
cf. Navahoceros sp.3 Kurten 1975 New World deer
Cervus sp.3 Linnaeus 1758 deer
 Artiodactyla - Antilocapridae
Tetrameryx shuleri3 Lull 1921 pronghorn
 Carnivora - Felidae
Smilodon fatalis1 Leidy 1868 saber-toothed cat
Felinae indet.1 Trouessart 1885 cat
"? Panthera atrox" = Panthera leo atrox3 Leidy 1853 lion
Panthera cf. onca3 Linnaeus 1758 jaguar
 Carnivora - Procyonidae
Procyon lotor Linnaeus 1758 raccoon
 Carnivora - Mustelidae
Lontra canadensis1 Schreber 1776 North American river otter
 Carnivora - Ursidae
Arctodus pristinus Leidy 1854 bear
 Carnivora - Canidae
Canis cf. latrans3 Say 1823 coyote
Canis ? lupus3 Linnaeus 1758 gray wolf
 Cingulata - Glyptodontidae
Glyptotherium sp.3 Osborn 1903 glyptodon
 Cingulata - Pampatheriidae
Holmesina sp.1 Simpson 1930 edentate
Holmesina septentrionalis1 Leidy 1889 edentate
 Megatherioidea - Megatheriidae
Eremotherium laurillardi2 Lund 1842 edentate
Polaco-Ramos, 1981; McDonald, 2002
 Megatherioidea - Nothrotheriidae
"Nothrotheriops shastensis" = Nothrotherium shastense3
"Nothrotheriops shastensis" = Nothrotherium shastense3 Sinclair 1905 Shasta ground sloth
  - Mylodontidae
Paramylodon cf. harlani3 Owen 1840 Harlan's ground sloth
 Proboscidea - Gomphotheriidae
Cuvieronius hyodon3 Fischer 1814 gomphothere
 Proboscidea - Elephantidae
"Mammuthus imperator" = Mammuthus columbi3
"Mammuthus imperator" = Mammuthus columbi3 Falconer 1857 imperial mammoth
 Didelphimorphia - Didelphidae
Didelphis marsupialis Linnaeus 1758 common opossum