Willow Springs 2 (UCMP V82309) (Jurassic to of the United States)

Where: Coconino County, Arizona (35.7° N, 111.1° W: paleocoordinates 19.4° N, 49.8° W)

• coordinate based on unpublished field data

• small collection-level geographic resolution

When: Silty Facies Member (Kayenta Formation), Sinemurian to Sinemurian (199.3 - 182.7 Ma)

• bed-level stratigraphic resolution

Environment/lithology: "channel"; medium-grained sandstone

• "typical med. sandstone, trough cross-stratified; purple, placer deposits & petrified wood preserved"

Size class: macrofossils

Collected in 1982; reposited in the UCMP

Primary reference: J. M. Clark and D. E. Fastovsky. 1986. Vertebrate biostratigraphy of the Glen Canyon Group in northern Arizona. The Beginning of the Age of the Dinosaurs: Faunal change across the Triassic-Jurassic boundary, N. C. Fraser and H.-D. Sues (eds.), Cambridge University Press 285-301 [R. Whatley/R. Whatley/R. Whatley]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 51899: authorized by Matthew Carrano, entered by Matthew Carrano on 30.06.2005, edited by Graeme Lloyd

Creative Commons license: CC BY (attribution)

Taxonomic list

Osteichthyes
 Therapsida - Tritylodontidae
Tritylodontidae indet. Cope 1884 mammaliamorph
Reptilia
 Theropoda -
Kayentavenator elysiae n. gen. n. sp.
Kayentavenator elysiae n. gen. n. sp. Gay 2010 tetanuran theropod