Cedazo (Pleistocene of Mexico)

Also known as Arroyo Cedazo; Arroyo San Francisco

Where: Aguascalientes, Mexico (21.8° N, 102.3° W: paleocoordinates 21.8° N, 102.1° W)

• coordinate based on nearby landmark

When: Tacubaya Formation, Irvingtonian (1.8 - 0.3 Ma)

Environment/lithology: terrestrial

Size class: macrofossils

Primary reference: O. Mooser and W. W. Dalquest. 1975. Pleistocene mammals from Aguascalientes, central Mexico. Journal of Mammalogy 56(4):781-820 [J. Alroy/J. Alroy/J. Alroy]more details

PaleoDB collection 20283: authorized by John Alroy, entered by John Alroy on 30.04.1994, edited by Evangelos Vlachos and Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

• from "lower few meters" of Fm.
said by Kurten and Anderson 1980 to be Sangamonian, but by both Mooser and Dalquest and Miller and Carranza 1984 to be Illinoian
Mammalia
 Rodentia - Erethizontidae
Erethizon ? dorsatum Linnaeus 1758 North American porcupine
confirmed by Frazier 1981; "Coendou sp." of White 1970
 Rodentia - Geomyidae
? Thomomys umbrinus Richardson 1829 southern pocket gopher
Cratogeomys cf. castanops1 Baird 1852 yellow-faced pocket gopher
 Lagomorpha - Leporidae
Lepus cf. californicus Gray 1837 black-tailed jackrabbit
Sylvilagus cf. audubonii Baird 1858 desert cottontail
 Perissodactyla - Equidae
Equus conversidens Owen 1869 horse
based on Rodriguez Avalos 1999, includes "E. excelsus," "E. sp.," "E. cf. caballus," "E. tau," "E. calobatus," "E. mexicanus," and "E. parastylidens"
Equus parastylidens n. sp. Mooser 1959 horse
 Artiodactyla - Tayassuidae
Platygonus sp. Leconte 1848 peccary
 Artiodactyla - Camelidae
"Camelops cf. hesternus" = Camelops hesternus6, "Camelops traviswhitei" = Camelops hesternus6, Hemiauchenia sp.1
"Camelops cf. hesternus" = Camelops hesternus6 Leidy 1873 camel
"Camelops traviswhitei" = Camelops hesternus6 Leidy 1873 camel
Hemiauchenia sp.1 Gervais and Ameghino 1880 camel
 Artiodactyla - Cervidae
Navahoceros fricki1 Schultz and Howard 1935 New World deer
 Artiodactyla - Bovidae
Bison alaskensis1 Rhoads 1897 bison
 Artiodactyla - Antilocapridae
Stockoceros conklingi Stock 1930 pronghorn
Stockoceros conklingi3 Stock 1930 pronghorn
Tetrameryx mooseri Dalquest 1974 pronghorn
see also Dalquest 1974
Tetrameryx tacubayensis Mooser and Dalquest 1975 pronghorn
 Carnivora - Felidae
"Smilodon cf. californicus" = Smilodon fatalis, "Panthera atrox" = Panthera leo atrox, Panthera onca, Lynx rufus1
"Smilodon cf. californicus" = Smilodon fatalis Leidy 1868 saber-toothed cat
"Panthera atrox" = Panthera leo atrox Leidy 1853 lion
Panthera onca Linnaeus 1758 jaguar
Lynx rufus1 Schreber 1777 bobcat
 Carnivora - Mustelidae
Taxidea cf. taxus Schreber 1778 American badger
 Carnivora - Ursidae
Arctodus pristinus2 Leidy 1854 bear
 Carnivora - Canidae
"Canis dirus" = Aenocyon dirus Leidy 1858 dire wolf
confirmed by Nowak 1979
Urocyon cinereoargenteus Schreber 1775 gray fox
Canis latrans Say 1823 coyote
Canis cedazoensis n. sp. Mooser and Dalquest 1975 canine
 Cingulata - Glyptodontidae
"Glyptotherium cf. mexicanum" = Glyptotherium cylindricum1
"Glyptotherium cf. mexicanum" = Glyptotherium cylindricum1 Brown 1912 glyptodon
 Cingulata - Pampatheriidae
Holmesina septentrionalis1 Leidy 1889 edentate
 Megatherioidea - Nothrotheriidae
"Nothrotheriops cf. shastensis" = Nothrotherium shastense1
"Nothrotheriops cf. shastensis" = Nothrotherium shastense1 Sinclair 1905 Shasta ground sloth
  - Mylodontidae
Paramylodon harlani Owen 1840 Harlan's ground sloth
 Proboscidea - Elephantidae
Mammuthus cf. hayi1 Barbour 1915 mammoth
 Proboscidea - Mammutidae
"Mammut americanus" = Mammut americanum
"Mammut americanus" = Mammut americanum Kerr 1792 American mastodon
 Didelphimorphia - Didelphidae
Didelphis marsupialis Linnaeus 1758 common opossum
Reptilia
 Testudines - Testudinidae
"Gopherus auffenbergi n. sp." = Gopherus auffenbergi4, "Gopherus pargensis n. sp." = Gopherus auffenbergi5
"Gopherus auffenbergi n. sp." = Gopherus auffenbergi4 Mooser 1972 gopher tortoise
Unknown institution (holotype), a shell and associated appendicular elements with the temporary number FC 500 (Mooser 1972, figs. 1–3)
"Gopherus pargensis n. sp." = Gopherus auffenbergi5 Mooser 1972 gopher tortoise
TMM 41536-29 (holotype), a partial carapace (Mooser 1980, fig. 5)