Fish Lake Valley: Clarendonian, Nevada

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Amphibia - Temnospondyli - Pelobatidae
Scaphiopus alexanderi n. sp. Zweifel 1956
Zweifel 1956
recombined as Scaphiopus (Spea) alexanderi
UCMP V-2804
Mammalia - Soricidae
Alluvisorex chasseae (Tedford 1961)
Repenning 1967
Mammalia - Talpidae
Mystipterus vespertilio n. sp. Hall 1930
see Hall 1930d
Domninoides cf. riparensis Green 1956
Clark et al. 1964
Mammalia - Plesiosoricidae
Meterix latidens n. sp. Hall 1929
recombined as Plesiosorex latidens
Mammalia - Erinaceidae
Metechinus nevadensis n. sp. Matthew 1929
see Matthew 1929a
Mammalia - Carnivora - Mustelidae
Pliotaxidea nevadensis (Butterworth 1916)
Hall 1944
"Esmeralda beds... 7 1/2 miles north of Chiatovich Ranch, Fish Lake Valley"
    = Leptarctinae indet. Gazin 1936
Wagner 1976
this is UCMP V-28904 according to Wagner
Mammalia - Carnivora - Canidae
Aelurodon haydeni (Leidy 1858)
    = Epicyon cf. saevus Leidy 1858
Tedford et al. 1987
"A. mortifer" of Kitts 1957; confirmed by Wang et al. 1999
Leptocyon matthewi Tedford et al. 2009
Tedford et al. 2009
"UCR locality RV 7407"
Mammalia - Carnivora - Felidae
? Pseudaelurus sp. Leidy 1858
Mammalia - Tayassuidae
Prosthennops cf. crassigenis Matthew and Gidley 1904
    = Prosthennops cf. niobrarensis Colbert 1935
Wright 1983
recombined as Colbertchoerus niobrarensis
Mammalia - Antilocapridae
Merycodus alticornis
    = Paracosoryx cf. alticornis Frick 1937
Alroy 2002
"cf. Merycodus" of Stirton 1929
Mammalia - Camelidae
Procamelus gracilis Leidy 1858
    = Protolabis coartatus Stirton 1929
Honey and Taylor 1978
"P. gracilis" and "P. coartatus" of Stirton 1929
Procamelus robustus Leidy 1858
    = Aepycamelus cf. robustus Leidy 1858
Alroy 2002
described by Stirton 1929; presumably includes his "Alticamelus cf. priscus" and "cf. Megatylopus"
Mammalia - Perissodactyla - Equidae
Hypohippus nevadensis n. sp. (Merriam 1913)
Mawby 1968
type of Merriam 1913 from UCMP loc. 2804
Nannippus tehonensis (Merriam 1916)
recombined as Hipparion gratum tehonense
Neohipparion cf. occidentale (Leidy 1856)
    = Hippotherium sp. Kaup 1832
Alroy 2002
Pliohippus cf. tantalus (Merriam 1913)
original and current combination Protohippus tantalus
Mammalia - Perissodactyla - Rhinocerotidae
Rhinocerotidae indet. Gray 1821
    = Teleoceras major Hatcher 1894
Prothero 2005
Mammalia - Lagomorpha - Ochotonidae
Sylvilagus sp. Gray 1867
    = Hesperolagomys galbreathi n. sp. Clark et al. 1964
Clark et al. 1964
Mammalia - Lagomorpha - Leporidae
Hypolagus cf. vetus (Kellogg 1910)
    = Hypolagus fontinalis Dawson 1958
Clark et al. 1964
Mammalia - Rodentia - Zapodidae
Macrognathomys nanus n. sp. Hall 1930
see Hall 1930b
Mammalia - Rodentia - Cricetidae
Peromyscus dentalis n. sp. Hall 1930
(1 measurement)
Copemys loxodon (Cope 1874)
Voorhies 1990
discusses continuing confusion among loxodon, longidens, kelloggae, and niobrariensis, all listed by Clark et al. 1964 except the last; loxodon is senior and is used tentatively
Copemys esmeraldensis n. sp. Clark et al. 1964
Clark et al. 1964
Mammalia - Rodentia - Mylagaulidae
Mylagaulus sp. Cope 1878
    = Hesperogaulus sp. Korth 1999
Korth 1999
Mammalia - Rodentia - Castoridae
Eucastor dividerus n. sp. Stirton 1935
recombined as Prodipoides dividerus
from UCMP V-2804: see Stirton 1935
Mammalia - Rodentia - Heteromyidae
Diprionomys cf. parvus Kellogg 1910
Clark et al. 1964
Perognathoides quartus n. sp. (Hall 1930)
Perognathoides tertius n. sp. (Hall 1930)
recombined as Cupidinimus tertius
see common names

Geography
Country:United States State/province:Nevada County:Esmeralda
Coordinates: 38.0° North, 118.0° West (view map)
Paleocoordinates:37.8° North, 113.9° West
Basis of coordinate:estimated from map
Altitude:5500 feet
Geographic resolution:local area
Time
Period:Neogene Epoch:Miocene
10 m.y. bin:Cenozoic 5-6
*Period:Tertiary
Key time interval:Clarendonian
Age range of interval:12.50000 - 9.40000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Esmeralda
Stratigraphy comments: other than biochronology, there is no particular evidence for the stratigraphic position of this locality relative to the Stewart Spring and Cedar Mountain faunas
dates of Evernden et al. 1964: KA 480 - 11.1 (= 11.39) Ma, 25' above micromammals KA 499 - 11.4 (= 11.70) Ma, just below micromammals
average is 11.545 Ma
these dates are not discussed by Perkins et al. 1998
Lithology and environment
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Collection methods:survey of museum collection
Reason for describing collection:general faunal/floral analysis
Museum repositories:UCMP
Collection method comments: material from UCMP V-2804 collected by Annie Alexander and Louise Kellogg in 1925
Taxonomic list comments:Chiatovich Ranch is also known as Arlemont P.O.
Metadata
Also known as:UCMP V-2804; UCR RV-6304
Database number:18888
Authorizer:J. Alroy, E. Fara, J. Marcot Enterer:J. Alroy, E. Fara, J. Marcot
Modifier:J. Alroy Research group:vertebrate
Created:1993-02-18 00:00:00 Last modified:2007-05-06 21:34:46
Access level:the public Released:1993-02-18 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:

2360. J. R. Macdonald and W. J. Pelletier. 1958. The Pliocene mammalian faunas of Nevada, U.S.A. Paleontologia, taxonomia y evolucion. Cuidad de Mexico: International Geological Congress, 1956 Report of the 7th Session 7:365-388 [J. Alroy/J. Alroy]

Secondary references:

6294 J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
1236 J. B. Clark, M. R. Dawson, and A. E. Wood. 1964. Fossil mammals from the lower Pliocene of Fish Lake Valley, Nevada. Bulletin of the Museum of Comparative Zoology 131(2) [J. Alroy/J. Alroy/J. Ju]
1473 J. F. Evernden, D. E. Savage, G. H. Curtis and G. T. James. 1964. Potassium-argon dates and the Cenozoic mammalian chronology of North America. American Journal of Science 262:145-198 [J. Alroy/J. Alroy/J. Marcot]
1775 E. R. Hall. 1944. A New Genus of American Pliocene Badger, with Remarks on the Relationships of Badgers of the Northern Hemisphere. Carnegie Institution of Washington Publication 551(2):11-23 [J. Alroy/J. Alroy/J. Marcot]
1934 J. G. Honey and B. E. Taylor. 1978. A generic revision of the Protolabidini (Mammalia, Camelidae), with a description of two new protolabidines. Bulletin of the American Museum of Natural History 161(3):367-426 [J. Alroy/J. Alroy/J. Marcot]
2137 W. W. Korth. 1999. Hesperogaulus, a new genus of mylagaulid rodent (Mammalia) from the Miocene (Barstovian to Hemphillian) of the Great Basin. Journal of Paleontology 73(5):945-951 [J. Alroy/J. Alroy/J. Marcot]
2487 J. E. Mawby. 1968. Megahippus and Hyohippus (Mammalia: Perissodactyla) from the Esmeralda Formation of Nevada. PaleoBios 7:1-13 [J. Alroy/J. Alroy/J. Ju]
51726 D. R. Prothero. 2005. The Evolution of North American Rhinoceroses. 1-218 [J. Marcot/J. Marcot]
2869 C. A. Repenning. 1967. Subfamilies and genera of the Soricidae. United States Geological Survey Professional Paper 565:1-74 [J. Alroy/J. Alroy/J. Ju]
6198 R. H. Tedford, T. Galusha, M. F. Skinner, B. E. Taylor, R. W. Fields, J. R. Macdonald, J. M. Rensberger, S. D. Webb, and D. P. Whistler. 1987. Faunal succession and biochronology of the Arikareean through Hemphillian interval (late Oligocene through earliest Pliocene epochs) in North America. In M. O. Woodburne (ed.), Cenozoic Mammals of North America: Geochronology and Biostratigraphy 153-210 [J. Alroy/J. Alroy/P. Wagner]
52058 R. H. Tedford, X. Wang, and B. E. Taylor. 2009. Phylogenetic Systematics of the North American Fossil Caninae (Carnivora: Canidae). Bulletin of the American Museum of Natural History 325:1-218 [J. Marcot/J. Marcot/G. Lloyd]
3510 M. R. Voorhies. 1990. Vertebrate biostratigraphy of the Ogallala Group in Nebraska. In T. C. Gustavson (ed.), Geologic Framework and Regional Hydrology: Upper Cenozoic Blackwater Draw and Ogallala Formations, Great Plains 115-151 [J. Alroy/J. Alroy/J. Marcot]
6332 H. Wagner. 1976. A new species of Pliotaxidea (Mustelidae; Carnivora) from California. Journal of Paleontology 50(1):107-127 [J. Alroy/J. Alroy/J. Alroy]
3773 D. B. Wright. 1983. Later Miocene Tayassuidae (Artiodactyla, Mammalia) of North America. University of Nebraska, M. S. thesis 1-350 [J. Alroy/J. Alroy/J. Sepkoski]