Meteor Crater Quarry area, tracksites (Triassic of the United States)

Also known as UCMP V3835

Where: Coconino County, Arizona (35.0° N, 111.0° W: paleocoordinates 5.2° N, 38.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Wupatki Member (Moenkopi Formation), Spathian (251.3 - 247.2 Ma)

• Three fossil vertebrate horizons occur at Meteor Crater - the middle of these is the main quarry. The lower horizon is the track horizon. 15 metres above lower contact with Kaibab Limestone.

•Lucas & Schoch (2002: Lethaia 35, 97-106) inferred the Wupatki Member to be Spathian in age based upon lithostratigraphic correlation

• group of beds-level stratigraphic resolution

Environment/lithology: wet floodplain; mudstone

• "mudflat"

Size class: macrofossils

Preservation: trace

Collected by Peabody; reposited in the UCMP

Collection methods: surface (in situ),

Primary reference: F. E. Peabody. 1948. Reptile and amphibian trackways from the Lower Triassic Moenkopi formation of Arizona and Utah. University of California Publications, Bulletin of the Department of Geological Sciences 27(8):295-468 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 95107: authorized by Richard Butler, entered by Richard Butler on 07.04.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

 Procolophonia -
Procolophonichnium sp. Nopcsa 1923 parareptile
UCMP, uncatalogued slab
 Pseudosuchia - Chirotheriidae
"Chirotherium diabloensis n. sp." = Synaptichnium diabloensis, "Chirotherium coltoni n. sp." = Isochirotherium coltoni, Chirotherium rex, "Chirotherium minus" = Chirotherium sickleri
"Chirotherium diabloensis n. sp." = Synaptichnium diabloensis Peabody 1948 archosaur
UCMP 36819, 36820, 36822, 36823, 36826, 36828, 37321, 37777
"Chirotherium coltoni n. sp." = Isochirotherium coltoni Peabody 1948 archosaur
UCMP 37329
Chirotherium rex Peabody 1948 archosaur
UCMP 37341
"Chirotherium minus" = Chirotherium sickleri Kaup 1835 archosaur
UCMP 36824, 36825, 36828, 37309, 37323, 37325, 37327, 37331-37334, 37339, 37340, 37772-37776, MNA V 3297, UCMP, uncatalogued slab; same slab as that containing Procolophonichnium
 Pseudosuchia - Rotodactylidae
Rotodactylus cursorius n. gen. n. sp.
Rotodactylus cursorius n. gen. n. sp. Peabody 1948 archosaur
UCMP 37794, 37311, 37312, 37313, 37335-37338