Yermo (Miocene of the United States)

Where: San Bernardino County, California (34.8° N, 117.0° W: paleocoordinates 34.1° N, 112.3° W)

• coordinate based on political unit

When: Barstow Formation, Barstovian (16.3 - 12.5 Ma)

Environment/lithology: terrestrial

Primary reference: M. O. Woodburne, S. T. Miller, and R. H. Tedford. 1982. Stratigraphy and geochronology of Miocene strata in the central Mojave Desert, California. Geologic excursions in the California deserts and adjacent transverse ranges: fieldtrip guidebook and volume prepared for the joint meeting of the Cordilleran Section--GSA and Pacific Section--AAPG, April 9-11, 2001, Universal City, California : fieldtrips 1-4 47-64 [J. Alroy/J. Alroy/J. Marcot]more details

PaleoDB collection 19616: authorized by John Alroy, entered by John Alroy on 26.07.1994, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

• all taxa from "10 m below" the highest local occurrence of P. carrizoensis
Show authors, comments, and common names
Mammalia
 Carnivora - Amphicyonidae
Amphicyon cf. ingens
Amphicyon cf. ingens Matthew 1924 bear-dog
 Carnivora - Canidae
Tomarctus hippophaga4, Microtomarctus conferta4, Cynarctoides acridens4, Osbornodon fricki3
Tomarctus hippophaga4 Matthew and Cook 1909 bone-crushing dog
Yermo Quarry
Microtomarctus conferta4 Matthew 1918 bone-crushing dog
Cynarctoides acridens4 Barbour and Cook 1914 bone-crushing dog
Yermo Quarry
Osbornodon fricki3 Wang 1994 canid
Yermo Quarry, 5 mi E of Yermo and 1 mi NE of the Toomey railroad station
 Perissodactyla - Equidae
"Merychippus stylodontus" = Acritohippus stylodontus, "Merychippus carrizoensis" = Parapliohippus carrizoensis
"Merychippus stylodontus" = Acritohippus stylodontus Merriam 1919 horse
"Merychippus carrizoensis" = Parapliohippus carrizoensis Dougherty 1940 horse
 Artiodactyla - Tayassuidae
Hesperhys vagrans2
Hesperhys vagrans2 Douglass 1903 peccary
from "Quarry 5 mi east of Yermo"
 Artiodactyla - Antilocapridae
"Ramoceros (Merriamoceros) coronatus" = Merriamoceros coronatus1
"Ramoceros (Merriamoceros) coronatus" = Merriamoceros coronatus1 Merriam 1913 pronghorn
 Artiodactyla - Palaeomerycidae
"Rakomeryx yermonensis n. sp." = Rakomeryx sinclairi
"Rakomeryx yermonensis n. sp." = Rakomeryx sinclairi Matthew 1918 ruminant
from "quarry 5 mi. E of Yermo": Frick 1937
1Frick 1937; 2Prothero 2015; 3Wang 1994; 4Wang et al. 1999