Cedazo: Irvingtonian, Mexico

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Testudines - Testudinidae
Gopherus auffenbergi n. sp. Mooser 1972
Mooser 1972
Unknown institution (holotype), a shell and associated appendicular elements with the temporary number FC 500 (Mooser 1972, figs. 1–3)
Gopherus pargensis n. sp. Mooser 1980
Mooser 1980
synonym of Gopherus auffenbergi
TMM 41536-29 (holotype), a partial carapace (Mooser 1980, fig. 5)
Mammalia - Cingulata - Pampatheriidae
Holmesina septentrionale
    = Holmesina septentrionalis Leidy 1889
Alroy 2002
Mammalia - Cingulata - Glyptodontidae
Brachyostracon cf. mexicanus (Cuataparo and Ramirez 1875)
    = Glyptotherium cf. mexicanum Cuataparo and Ramirez 1875
Alroy 2002
synonym of Glyptotherium cylindricum
Mammalia - Mylodontidae
Paramylodon harlani (Owen 1840)
Mammalia - Nothrotheriidae
Nothrotherium cf. shastense Sinclair 1905
    = Nothrotheriops cf. shastensis Sinclair 1905
Alroy 2002
original and current combination Nothrotherium shastense
Mammalia - Proboscidea - Elephantidae
Mammuthus cf. meriodionalis
    = Mammuthus cf. hayi Barbour 1915
Alroy 2002
Mammalia - Proboscidea - Mammutidae
Mammut americanus (Kerr 1792)
recombined as Mammut americanum
Mammalia - Carnivora - Ursidae
Arctodus simus (Cope 1879)
(4 measurements)
    = Arctodus pristinus Leidy 1854
Dalquest and Mooser 1980
from Arroyo San Francisco
Mammalia - Carnivora - Mustelidae
Taxidea cf. taxus (Schreber 1778)
Mammalia - Carnivora - Canidae
Canis cedazoensis n. sp. Mooser and Dalquest 1975
(3 measurements)
Canis latrans Say 1823
(1 measurement)
Urocyon cinereoargenteus (Schreber 1775)
Canis dirus Leidy 1858
recombined as Aenocyon dirus
confirmed by Nowak 1979
Mammalia - Carnivora - Felidae
Smilodon cf. californicus Bovard 1907
synonym of Smilodon fatalis
Panthera onca (Linnaeus 1758)
Panthera atrox (Leidy 1853)
recombined as Panthera leo atrox
Lynx (Felis) rufus (Schreber 1777)
    = Lynx rufus Schreber 1777
Alroy 2002
Mammalia - Perissodactyla - Equidae
Equus conversidens Owen 1869
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
nomen dubium belonging to Equus
Mammalia - Tayassuidae
Platygonus sp. Leconte 1848
Mammalia - Camelidae
Tanupolama sp. Stock 1928
    = Hemiauchenia sp. Gervais and Ameghino 1880
Alroy 2002
two forms
Camelops cf. hesternus (Leidy 1873)
Mooser and Dalquest 1975
(16 measurements)
Camelops traviswhitei Mooser and Dalquest 1975
Mooser and Dalquest 1975
synonym of Camelops hesternus
(9 measurements)
Mammalia - Cervidae
Odocoileus halli Alvarez 1969
    = Navahoceros fricki Schultz and Howard 1935
Alroy 2002
Mammalia - Antilocapridae
Tetrameryx mooseri Dalquest 1974
see also Dalquest 1974
Tetrameryx tacubayensis Mooser and Dalquest 1975
Stockoceros conklingi (Stock 1930)
Capromeryx mexicana Furlong 1925
    = Stockoceros conklingi Stock 1930
Jimenez-Hidalgo et al. 2004
"Stockoceros" but presumably they mean S. conklingi
Mammalia - Bovidae
Bison aguascalentensis Mooser and Dalquest 1975
    = Bison alaskensis Rhoads 1897
Alroy 2002
Mammalia - Lagomorpha - Leporidae
Lepus cf. californicus Gray 1837
Sylvilagus cf. audubonii (Baird 1858)
Mammalia - Rodentia - Erethizontidae
Erethizon ? dorsatum (Linnaeus 1758)
confirmed by Frazier 1981; "Coendou sp." of White 1970 (1 measurement)
Mammalia - Rodentia - Geomyidae
Pappogeomys castanops (Baird 1852)
    = Cratogeomys cf. castanops Baird 1852
Alroy 2002
? Thomomys umbrinus (Richardson 1829)
Mammalia - Didelphimorphia
Didelphis marsupialis Linnaeus 1758
see common names

Geography
Country:Mexico State/province:Aguascalientes
Coordinates: 21.8° North, 102.3° West (view map)
Paleocoordinates:21.8° North, 102.1° West
Basis of coordinate:based on nearby landmark
Time
Period:Quaternary Epoch:Pleistocene
10 m.y. bin:Cenozoic 6
Key time interval:Irvingtonian
Age range of interval:1.40000 - 0.21000 m.y. ago
Stratigraphy
Formation:Tacubaya
Lithology and environment
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Taxonomic list comments: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
Metadata
Also known as:Arroyo Cedazo; Arroyo San Francisco
Database number:20283
Authorizer:J. Alroy, E. Vlachos, J. Marcot Enterer:J. Alroy, E. Vlachos, J. Marcot
Modifier:J. Alroy Research group:vertebrate
Created:1994-04-30 00:00:00 Last modified:2009-07-15 19:03:59
Access level:the public Released:1994-04-30 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:
2607. 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]

Secondary references:

6294 J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
1324 W. W. Dalquest and O. Mooser. 1980. Arctodus pristinus Leidy in the Pleistocene of Aguascalientes, Mexico. Journal of Mammalogy 61(4):724-725 [J. Alroy/J. Alroy/J. Alroy]
12061 E. Jimenez-Hidalgo, O. Carranza-Castaneda, and M. Montellano-Ballesteros. 2004. A Pliocene record of Capromeryx (Mammalia: Antilocapridae) in Mexico. Journal of Paleontology 78(6):1179-1186 [J. Alroy/J. Alroy/J. Alroy]
64780 O. Mooser. 1972. A new species of Pleistocene fossil tortoise, genus Gopherus, from Aguascalientes, Aguascalientes, México. Southwestern Naturalist 17:61-65 [E. Vlachos/E. Vlachos]
64779 O. Mooser. 1980. Pleistocene fossil turtles from Aguascalientes, State of Aguascalientes. Revista Mexicana de Ciencias Geológicas 4(1):63-66 [E. Vlachos/E. Vlachos]
34617 O. Mooser and W. W. Dalquest. 1975. A new species of camel (genus Camelops) from the Pleistocene of Aguascalientes, Mexico. Southwestern Naturalist 19(4):341-345 [J. Alroy/J. Alroy/J. Marcot]