Peacock Canyon tracksite (Triassic of the United States)

Where: Union County, New Mexico (36.9° N, 103.4° W: paleocoordinates 11.8° N, 42.8° W)

• coordinate stated in text

• small collection-level geographic resolution

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

• group of beds-level stratigraphic resolution

Environment/lithology: "floodplain"; fine-grained, medium, quartzose, white sandstone and gray, green, white, calcareous siltstone

• channel and overbank facies with footprints
• "fine-grained, buff-colored sandstone"; "white, ripple-marked, cross-laminated medium-grained, quartzose sandstone"

•"whitish gray-green, very thinly bedded, calcareous siltstones and fine sandstones"

Size class: macrofossils

Preservation: trace

Collected by Hyde in 1927

Collection methods: quarrying,

Primary reference: D. Baird. 1964. Dockum (Late Triassic) reptile footprints from New Mexico. Journal of Paleontology 38(1):118-125 [M. Carrano/M. Carrano/R. Butler]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 46560: authorized by Matthew Carrano, entered by Matthew Carrano on 19.01.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
  - Rhynchosauroidae
Rhynchosauroides sp. Maidwell 1911 reptile
 Saurischia -
Eosauropus cimarronensis n. gen. n. sp.4 Lockley et al. 2006 saurischian
Pseudotetrasauropus sp.3 Ellenberger 1965 prosauropod
 Saurischia - Eubrontidae
"cf. Anchisauripus hitchcocki" = Grallator (Anchisauripus) hitchcocki
"cf. Anchisauripus hitchcocki" = Grallator (Anchisauripus) hitchcocki Lull 1904 theropod
 Saurischia - Anchisauripodidae
Coelurosaurichnus sp.1 Huene 1941 theropod
 Neornithischia - Moyenisauropodidae
? Anomoepus sp. Hitchcock 1848 bird foot dinosaur
 Pseudosuchia - Chirotheriidae
Brachychirotherium sp.1 Beurlen 1950 archosaur
 Phytosauria - Parasuchidae
? Apatopus sp.3 Baird 1957 archosaur
Osteichthyes
 Therapsida -
Therapsida indet.1 Broom 1905 therapsid
 Ichnofossils -