Sloan Canyon tracksite (Sloan Canyon Fm.) (Triassic of the United States)

Where: Union County, New Mexico (36.9° N, 103.2° W: paleocoordinates 11.8° N, 42.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Sloan Canyon Formation (Chinle Group), Norian (228.0 - 208.5 Ma)

• Apachean; orig. assigned to Dockum.

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; white sandstone and green claystone

• "near the top of a white, locally ripple-marked sandstone unit about 40 cm thick. This sandstone...is planar bedded with green clay drapes separating various units..."

Size class: mesofossils

Preservation: mold/impression, trace

Collected by M. G. Lockley & A. P. Hunt in 1993

Collection methods: surface (float), surface (in situ),

Primary reference: K. L. Conrad and M. G. Lockley. 1986. Overview of Late Triassic ichnofaunas in the western USA. In M. G. Lockley (ed.), A Guide to Dinosaur Tracksites of the Colorado Plateau and American Southwest. University of Colorado at Denver Geology Department Magazine, Special Issue 12-14 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 84021: authorized by Matthew Carrano, entered by Matthew Carrano on 15.09.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Squamata -
Rhynchosauroides sp. Maidwell 1911 squamates
 Pseudosuchia - Chirotheriidae
Brachychirotherium sp.3 Beurlen 1950 archosaur
Chirotherium sp. Kaup 1835 archosaur
"phytosaurs"
 Phytosauria - Parasuchidae
Apatopus sp.2 Baird 1957 archosaur
"a protorosaurid"
 Theropoda - Grallatoridae
"Anchisauripus sillimani" = Eubrontes sillimani1
"Anchisauripus sillimani" = Eubrontes sillimani1 Hitchcock 1843 theropod
 Saurischia -
? Eosauropus sp.1 Lockley et al. 2006 sauropodomorph
 Ichnofossils -
Scoyenia sp.2 White 1929
? Acanthichnus sp.2 Hitchcock 1858
Kouphichnium sp.2 Nopcsa 1923
Isopodichnus sp.2 Bornemann 1889