111 Ranch (Upper): Blancan, Arizona

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Proboscidea - Gomphotheriidae
Cuvieronius sp. Osborn 1923
    = Gomphotheriidae indet. Hay 1922
Alroy 2002
Mammalia - Perissodactyla - Equidae
Nannippus peninsulatus (Cope 1885)
Equus simplicidens Cope 1892
recombined as Plesippus simplicidens
Mammalia - Tayassuidae
Platygonus sp. Leconte 1848
Mammalia - Camelidae
Titanotylopus sp. Barbour and Schultz 1934
    = Camelidae indet. Gray 1821
Alroy 2002
could be Gigantocamelus
Camelops cf. traviswhitei Mooser and Dalquest 1975
synonym of Camelops hesternus
Mammalia - Carnivora - Felidae
Felis sp. Linnaeus 1758
    = Felinae indet. Trouessart 1885
Alroy 2002
Mammalia - Carnivora - Canidae
Borophagus sp. Cope 1892
Canis cf. irvingtonensis Savage 1951
    = Canis cf. latrans Say 1823
Alroy 2002
Mammalia - Carnivora - Procyonidae
? Bassariscus sp. Coues 1887
Mammalia - Carnivora - Mustelidae
Mustela sp. Linnaeus 1758
Mammalia - Rodentia - Hydrochoeridae
Neochoerus dichroplax Ahearn and Lance 1980
recombined as Phugatherium dichroplax
Mammalia - Rodentia - Cricetidae
Onychomys sp. Baird 1858
Sigmodon medius Gidley 1922
synonym of Sigmodon minor
Repomys arizonensis Tomida 1987
Tomida 1987
Neotoma taylori Hibbard 1967
Tomida 1987
Calomys (Bensonomys) arizonae (Gidley 1922)
    = Bensonomys arizonae Gidley 1922
Tomida 1987
recombined as Calomys (Bensonomys) arizonae
Reithrodontomys rexroadensis Hibbard 1952
Tomida 1987
Synaptomys vetus Wilson 1933
    = Mictomys vetus Wilson 1933
Alroy 2002
Baiomys sp. True 1894
Peromyscus sp. Gloger 1841
Tomida 1987
Ondatra idahoensis Wilson 1933
Pliophenacomys primaevus (Hibbard 1937)
Tomida 1987
Mammalia - Rodentia - Geomyidae
Geomys persimilis Hay 1927
    = Nerterogeomys cf. persimilis Hay 1927
Tomida 1987
Mammalia - Rodentia - Heteromyidae
Perognathus gidleyi Hibbard 1941
Tomida 1987
Dipodomys gidleyi Wood 1935
(3 measurements)
    = Prodipodomys gidleyi Wood 1935
Tomida 1987
original and current combination Dipodomys gidleyi
Dipodomys hibbardi Zakrzewski 1981
Mammalia - Rodentia - Sciuridae
Spermophilus sp. Cuvier 1825
Mammalia - Lagomorpha - Leporidae
Sylvilagus sp. Gray 1867
Aluralagus sp. Downey 1968
    = ? Hypolagus virginiae Downey 1970
Tomida 1987
"Aluralagus sp."
    = Aluralagus virginiae Downey 1970
White 1991
Aztlanolagus sp. Russell and Harris 1986
Hypolagus arizonensis n. sp. Downey 1962
from Tusker: see Downey 1962
Mammalia - Cingulata - Glyptodontidae
Glyptotherium texanum Osborn 1903
Mammalia - Mylodontidae
Glyptotherium chapadmalense
    = Glossotherium chapadmalense Kraglievich 1925
Alroy 2002
Mammalia - Megalonychidae
Megalonyx sp. Harlan 1825
see common names

Geography
Country:United States State/province:Arizona County:Graham
Coordinates: 33.0° North, 109.6° West (view map)
Paleocoordinates:33.1° North, 109.0° West
Basis of coordinate:based on political unit
Time
10 m.y. bin:Cenozoic 6
*Period:Tertiary *Epoch:Pliocene
Key time interval:Blancan
Age range of interval:4.70000 - 1.40000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Local section:111Rn Local bed:3
Local order:bottom to top
Lithology and environment
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Taxonomic list comments:from 40-50 m/130-163 ft. in local section
most of the taxa are from less than 5 m below the Gauss/ Matuyama transition (2.6 Ma, see Cande and Kent 1992); this is the only reasonable assignment in light of the FT dates for 111 Ranch (Middle)
Metadata
Database number:19658
Authorizer:J. Alroy Enterer:J. Alroy
Modifier:J. Alroy Research group:vertebrate
Created:1993-02-18 00:00:00 Last modified:2009-07-15 19:13:09
Access level:the public Released:1993-02-18 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:
1584. T. Galusha, N. M. Johnson, E. H. Lindsay, N. D. Opdyke, and R. H. Tedford. 1984. Biostratigraphy and magnetostratigraphy, late Pliocene rocks, 111 Ranch, Arizona. Geological Society America Bulletin 95(6):714-722 [J. Alroy/J. Alroy/M. Uhen]

Secondary references:

6294 J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
61995% 23340Y. Tomida. 1987. Small mammal fossils and correlation of continental deposits, Safford and Duncan basins, Arizona. National Science Museum 1-141 [J. Alroy/J. Alroy/J. Alroy]
3633 J. A. White. 1991. North American Leporinae (Mammalia: Lagomorpha) from late Miocene (Clarendonian) to latest Pliocene (Blancan). Journal of Vertebrate Paleontology 11(1):67-89 [J. Alroy/J. Alroy/J. Alroy]