Moenave tracksite, MNA 565 (Triassic to of the United States)

Where: Coconino County, Arizona (36.1° N, 111.3° W: paleocoordinates 15.2° N, 50.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Moenave Formation (Glen Canyon Group), Rhaetian to Rhaetian (208.5 - 199.3 Ma)

• Most of the Moenave Formation is the Dinosaur Canyon Member. In the Moenave type section, near Tuba City, Arizona, all of the Moenave section is Dinosaur Canyon Member, as it is throughout the Moenave outcrop belt along the Echo Cliffs and Ward's Terrace of northern Arizona. However, north of the Grand Canyon in Arizona and in southwestern Utah, the upper part of the Moenave Formation is lacustrine strata. These strata are the Whitmore Point Member.

•Lucas et al. (2011: Palaeo3 302: 194-205) proposed, on the basis of multiple lines of biostratigraphic evidence, that the Triassic–Jurassic boundary is placed within the middle part of the Whitmore Point Member of the Moenave Formation where this member is present, and high in the Dinosaur Canyon Member elsewhere. The "Whitmore Point assemblage" of vertebrate taxa, earliest Jurassic (Hettangian) in age. The underlying "Dinosaur Canyon assemblage", is latest Triassic (Rhaetian) in age.

•Because the stratigraphic position of this site within the Moenave is unclear, a Rhaetian–Hettangian age is given.

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Preservation: trace

Collection methods: surface (in situ),

Primary reference: G. V. Irby. 1993. Early Jurassic dinosaur tracksites, northeastern Arizona. In D. Boaz & M. Dornan (ed.), Proceedings of the 1st Annual Symposium, Fossils of Arizona. Mesa Southwest Museum and Southwest Paleontological Society, Mesa, AZ 15-25 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 126610: authorized by Matthew Carrano, entered by Matthew Carrano on 10.04.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Theropoda -
Theropoda indet. theropod
track