UCM Loc. 82021, Revuelto Creek Local Fauna (Triassic of the United States)

Where: Quay County, New Mexico (35.4° N, 103.4° W: paleocoordinates 10.2° N, 43.0° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Bull Canyon Formation (Dockum Group), Norian (228.0 - 208.5 Ma)

• late Early Norian; initially referred to "Cooper Canyon Formation" and later considered Bull Canyon. Hunt et al. 1998 assign this to Blue Mesa Mbr. of Chinle Fm.

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; concretionary, ferruginous, intraclastic, gray, calcareous, carbonaceous mudstone

• "purple weathering mudstone...the unweathered mudstone is grey, with pink mottles and reddish streaks of iron stain. Numerous grey mudclasts and 2-5 mm calcium carbonate nodules are also present." "The purple mudstone contains lenses of cross-stratified, reworked caliche as BB- and pea-sized carbonate nodules."

Size class: macrofossils

Collected in 1981; reposited in the UCM

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

Primary reference: K. Carpenter and J. M. Parrish. 1985. Late Triassic vertebrates from Revuelto Creek, Quay County, New Mexico. New Mexico Geological Society Guidebook, 36th Field Conference, Santa Rosa, NM 197-198 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 49499: authorized by Matthew Carrano, entered by Matthew Carrano on 18.04.2005, edited by Bethany Allen and Richard Butler

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Pseudosuchia - Stagonolepididae
"Desmatosuchus chamaensis" = Rioarribasuchus chamaensis4
"Desmatosuchus chamaensis" = Rioarribasuchus chamaensis4 Zeigler et al. 2002 aetosaur
 Pseudosuchia - Shuvosauridae
Shuvosaurus sp.1, "Chatterjeea elegans" = Shuvosaurus inexpectatus1
Shuvosaurus sp.1 Chatterjee 1993 archosaur
UCM 52081
"Chatterjeea elegans" = Shuvosaurus inexpectatus1 Chatterjee 1993 archosaur
 Phytosauria - Parasuchidae
Rutiodon "sp. B", "Arribasuchus bucercos" = Machaeroprosopus1, "Pseudopalatus mccauleyi" = Machaeroprosopus mccauleyi2
Rutiodon "sp. B" Emmons 1856 archosaur
"Arribasuchus bucercos" = Machaeroprosopus1 archosaur
"Pseudopalatus mccauleyi" = Machaeroprosopus mccauleyi2 Ballew 1989 archosaur
YPM 3293, skull
 Theropoda -
Gojirasaurus quayi n. gen. n. sp.1 Carpenter 1997 coelophysoid
Osteichthyes
 Palaeonisciformes -