UCM Loc. 82021, Revuelto Creek Local Fauna: Norian, New Mexico
collected 1981

List of taxa
Where & when
Taphonomy & methods
Metadata & references
Taxonomic list
Actinopteri - Palaeonisciformes
Palaeonisciformes indet. Hay 1902
Parrish and Carpenter 1986 1 individual
Reptilia - Theropoda
Theropoda indet. Marsh 1881
Parrish and Carpenter 1986 2 specimens
Procompsognathidae indet. Huene 1929
1 individual
(1 measurement)
    = Gojirasaurus quayi n. gen., n. sp. Carpenter 1997
Carpenter 1997
Reptilia - Shuvosauridae
Reptilia indet. Laurenti 1768
Parrish and Carpenter 1986 1 specimen
UCM 52081
    = Shuvosaurus sp. Chatterjee 1993
Carpenter 1997
Poposaurus sp. Mehl 1915
1 individual
    = Chatterjeea elegans Long and Murry 1995
Carpenter 1997
synonym of Shuvosaurus inexpectatus
Desmatosuchus sp. Case 1920
1 specimen
    = Desmatosuchus chamaensis Zeigler et al. 2002
Zeigler et al. 2002
recombined as Rioarribasuchus chamaensis
UCM 47725, paramedian plate
Reptilia - Parasuchidae
Rutiodon informal sp. B Emmons 1856
Pseudopalatus mccauleyi Ballew 1989
Hunt et al. 2006
recombined as Machaeroprosopus mccauleyi
YPM 3293, skull
Rutiodon gregorii (Camp 1930)
2 specimens
    = Arribasuchus bucercos
Carpenter 1997
synonym of Machaeroprosopus
see common names

Country:United States State/province:New Mexico County:Quay
Coordinates: 35.4° North, 103.4° West (view map)
Paleocoordinates:10.2° North, 43.0° West
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Period:Triassic Epoch:Late/Upper Triassic
Stage:Norian 10 m.y. bin:Triassic 4
Key time interval:Norian
Age range of interval:228.00000 - 208.50000 m.y. ago
Geological group:Dockum Formation:Bull Canyon
Stratigraphic resolution:bed
Stratigraphy comments: 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.
Lithology and environment
Primary lithology:concretionary,ferruginous,intraclastic,gray calcareous,carbonaceous mudstone
Includes fossils?Y
Lithology description: "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."
Environment:terrestrial indet.
Modes of preservation:body
Size of fossils:macrofossils
Preservation of anatomical detail:medium
Associated major elements:some
Disassociated major elements:some
Spatial resolution:parautochthonous
Collection methods and comments
Collection methods:selective quarrying,surface (float),surface (in situ),mechanical,field collection
Reason for describing collection:taxonomic analysis
Museum repositories:UCM
Collection dates:1981
Database number:49499
Authorizer:M. Carrano, R. Butler, A. Dunhill Enterer:M. Carrano, R. Butler, B. Allen
Modifier:M. Carrano Research group:vertebrate
Created:2005-04-18 08:20:44 Last modified:2016-05-27 14:09:06
Access level:the public Released:2005-04-18 08:20:44
Creative Commons license:CC BY
Reference information

Primary reference:

19871.ETE 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]

Secondary references:

7058 K. Carpenter. 1997. A giant coelophysoid (Ceratosauria) theropod from the Upper Triassic of New Mexico, USA. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen 205(2):189-208 [M. Carrano/M. Carrano/M. Carrano]
13905ETE A. P. Hunt, S. G. Lucas, A. B. Heckert, R. M. Sullivan, and M. G. Lockley. 1998. Late Triassic dinosaurs from the western United States. Géobios 31(4):511-531 [M. Carrano/M. Carrano/J. Alroy]
66841 A. P. Hunt, S. G. Lucas, and J. A. Spielmann. 2006. Sexual dimorphism in a large brachyrostral phytosaur (Archosauria: Crurotarsi) from the Late Triassic of western North America. New Mexico Museum of Natural History and Science Bulletin 37:563-567 [A. Dunhill/B. Allen]
14122ETE R. A. Long and P. A. Murry. 1995. Late Triassic (Carnian and Norian) tetrapods from the southwestern United States. New Mexico Museum of Natural History and Science Bulletin 4:1-254 [M. Carrano/M. Carrano/M. Carrano]
13246 J. M. Parrish and K. Carpenter. 1986. A new vertebrate fauna from the Dockum Formation (Late Triassic) of eastern New Mexico. In K. Padian (ed.), The Beginning of the Age of Dinosaurs: Faunal Change Across the Triassic–Jurassic Boundary. Cambridge University Press, Cambridge 151-160 [M. Carrano/M. Carrano/M. Carrano]
31725 K. E. Zeigler, A. B. Heckert, and S. G. Lucas. 2002. A new species of Desmatosuchus (Archosauria: Aetosauria) from the Upper Triassic of the Chama Basin, north-central New Mexico. In A. B. Heckert, S. G. Lucas (eds.), Upper Triassic Stratigraphy and Paleontology, New Mexico Museum of Natural History and Science Bulletin 21:215-219 [R. Butler/R. Butler]