Tick Canyon (CIT 201) ( of the United States)

Where: Los Angeles County, California (34.5° N, 118.4° W: paleocoordinates 33.1° N, 110.2° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Tick Canyon Formation, Arikareean (29.5 - 18.5 Ma)

Environment/lithology: fluvial; brown, red siltstone and sandstone

• Siltstone, reddish brown, compact, evenly and thinly bedded, with minor flaggy sandstone and greenish clay; locally fossiliferous (C.I.T. Loc. 201)

Size class: macrofossils

Primary reference: R. H. Jahns. 1940. Stratigraphy of the Easternmost Ventura Basin, California, with a Description of a New Lower Miocene Mammalian Fauna From the Tick Canyon Formation. Carnegie Institution of Washington Publication 514(9):145-194 [J. Alroy/J. Alroy/J. Marcot]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 17852: authorized by John Alroy, entered by John Alroy on 26.03.1995, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

• underlying basalts dated at 25.6 +/- 2.9, 24.6 +/- 0.8, and 20.8 +/- 0.8 Ma (presumably K-Ar) according to Woodburne et al. 1982; "error" is more than 10%

•actually from "near the narrows of Vasquez Canyon" several miles to the west of Tick Canyon

•Tick Canyon, exact locality unknown: Stenomylus sp. Frick and Taylor 1968: "Stenomylinae indet." of Whistler 1967

Show authors, comments, and common names
Aves
 Accipitriformes - Accipitridae
Miohierax stocki n. gen. n. sp.2
Miohierax stocki n. gen. n. sp.2 Howard 1944 hawk
Mammalia
 Lagomorpha - Leporidae
Archaeolagus acaricolus n. sp.1
Archaeolagus acaricolus n. sp.1 Dawson 1958 rabbit
 Rodentia - Heteromyidae
Trogomys rupinimenthae n. sp.3
Trogomys rupinimenthae n. sp.3 Reeder 1960 rodent
 Perissodactyla - Equidae
Parahippus maxsoni n. sp.
Parahippus maxsoni n. sp. Jahns 1940 anchitheriine horse
 Artiodactyla - Camelidae
Miolabis californicus
Miolabis californicus Maxson 1930 camel
 Artiodactyla - Merycoidodontidae
"Merychyus calaminthus n. sp." = Merychyus calaminthus, "Merychyus jahnsi n. sp." = Merychyus calaminthus4
"Merychyus calaminthus n. sp." = Merychyus calaminthus Jahns 1940 oreodont
"Merychyus jahnsi n. sp." = Merychyus calaminthus4 Jahns 1940 oreodont
CIT 1382
1Dawson 1958; 2Howard 1944; 3Reeder 1960; 4Whistler 1967