PBDB Collection

Curtis Floss ( of the United States)

Also known as UA locality 25-2; "Gidley Level" in part; Curtis Ranch in part

Where: Cochise County, Arizona (32.0° N, 110.2° W: paleocoordinates 32.1° N, 109.6° W)

• coordinate based on political unit

When: St. David Formation, Blancan (4.9 - 1.8 Ma)

• within chron C2r.2r

•said to be Irvingtonian, but presumably Blancan insofar as it underlies the Glyptotherium fauna, which is Blancan according to Cassiliano 1999

Environment/lithology: terrestrial

Primary reference: E. H. Lindsay and N. T. Tessman. 1974. Cenozoic Vertebrate Localities and Faunas in Arizona. Journal of the Arizona Academy of Sciences 9(1):3-24 [J. Alroy/J. Alroy/J. Marcot]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 20303: authorized by John Alroy, entered by John Alroy on 18.02.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

• species-level i.d.s inferred from "Gidley Level" list of Johnson et al. 1975

•"Curtis Ranch" herpetofauna described by Brattstrom 1955: Ambystoma tigrinum, Coluber constrictor, Lampropeltis intermedius n. sp., Natrix sp., Thamnophis sp., Crotalus lepidus, Testudo sp. (not seen and probably Gopherus sp.)

Show authors, comments, and common names

Mammalia
Proboscidea - Gomphotheriidae	Stegomastodon sp. Stegomastodon sp. Pohlig 1912 gomphothere
Rodentia - Cricetidae	"Bensonomys arizonae" = Calomys (Bensonomys) arizonae⁴, Peromyscus sp., Sigmodon curtisi⁴, Sigmodon minor⁴, Onychomys pedroensis⁴ "Bensonomys arizonae" = Calomys (Bensonomys) arizonae⁴ Gidley 1922 rodent Peromyscus sp. Gloger 1841 deer mouse Sigmodon curtisi⁴ Gidley 1922 cotton rat Sigmodon minor⁴ Gidley 1922 cotton rat Onychomys pedroensis⁴ Gidley 1922 grasshopper mouse
Rodentia - Geomyidae	Nerterogeomys persimilis⁴ Nerterogeomys persimilis⁴ Hay 1927 pocket gopher
Lagomorpha - Leporidae	Aluralagus virginiae n. sp.², Sylvilagus sp.³ Aluralagus virginiae n. sp.² Downey 1970 rabbit see also White 1991a Sylvilagus sp.³ Gray 1867 cottontail rabbit
Soricomorpha - Talpidae	Talpidae indet. Talpidae indet. Fischer de Waldheim 1817 mole
Carnivora - Mephitidae	Spilogale putorius⁴ Spilogale putorius⁴ Linnaeus 1758 eastern spotted skunk
Carnivora - Canidae	Canis edwardii Canis edwardii Gazin 1942 canine confirmed by Nowak 1979, although Johnson et al. 1975 list "C. priscolatrans"
Artiodactyla - Camelidae	Hemiauchenia sp.¹, Camelops sp. Hemiauchenia sp.¹ Gervais and Ameghino 1880 camel Camelops sp. Leidy 1854 camel
Artiodactyla - Tayassuidae	Platygonus sp. Platygonus sp. Leconte 1848 peccary
Artiodactyla - Antilocapridae	Capromeryx gidleyi⁴ Capromeryx gidleyi⁴ Frick 1937 pronghorn presumably includes type of Frick 1937 from "Curtis Flats, Benson"
Perissodactyla - Equidae	Equus sp. Equus sp. Linnaeus 1758 horse

¹Alroy 2002; ²Downey 1970; ³Galusha et al. 1984; ⁴Johnson et al. 1975