Dinosaur Wash, PFV 122, Dying Grounds: Norian, Arizona
collected 1998

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Vertebrata indet. Lamarck 1801
Heckert 2004 4 specimens
PEFO 20341, 20361-62, 20391
Chondrichthyes
? Chondrichthyes indet. Huxley 1880
Heckert 2004 3 elements
PEFO 20357-59
Chondrichthyes - Xenacanthiformes - Xenacanthidae
Xenacanthus moorei (Woodward 1889)
Murry 1989 172 specimens
PEFO 3822-23, 3897
    = "Xenacanthus" moorei Woodward 1889
Heckert 2004
recombined as Triodus moorei
PEFO 20349-50
? Xenacanthus moorei (Woodward 1889)
Murry 1989 1 specimen
recombined as Triodus moorei
PEFO 3896
Chondrichthyes - Hybodontiformes
Hybodontoidea indet. Zangerl 1981
Heckert 2004 1 specimen
PEFO 20348
Chondrichthyes - Hybodontiformes - Lonchidiidae
Lissodus humblei (Murry 1981)
Murry 1989 14 specimens
original and current combination Lonchidion humblei
PEFO 3826-27
Chondrichthyes - Hybodontiformes
? Lissodus sp. Brough 1935
Murry 1989 3 specimens
PEFO 3829, 3898-99
Osteichthyes
Osteichthyes indet. Huxley 1880
Heckert 2004 5 specimens
PEFO 20344, 20356, 20360, 20379, 20390
Actinopterygii
? Actinopterygii indet. Cope 1887
Heckert 2004 2 specimens
PEFO 20346-47
    = Actinopterygii indet. Cope 1887
Mutter and Heckert 2006
Actinopteri - Perleidiformes - Colobodontidae
Colobodontidae indet. Stensiƶ 1916
Murry 1989 14 specimens
PEFO 3841-42, 3902-03
Actinopteri - Palaeonisciformes - Palaeoniscidae
aff. Turseodus sp. Leidy 1857
Murry 1989 2 specimens
PEFO 3846, 3906, 20342-43
    = cf. Turseodus sp. Leidy 1857
Murry and Long 1989
Actinopteri - Palaeonisciformes - Redfieldiidae
Redfieldiidae indet. Hutchinson 1973
Murry 1989 4 specimens
PEFO 3834, 20344, 20354, 20363
? Redfieldiidae indet. Hutchinson 1973
Murry 1989 3 specimens
PEFO 3835, 3846, 3901
Arganodontidae
Arganodontidae indet. Martin 1982
    = ? Arganodus sp. Martin 1979
Heckert 2004
Metoposauridae
Metoposauridae indet. Watson 1919
Therrien and Fastovsky 2000 7 specimens
PEFO 20351-53, 20381-83
Apachesaurus gregorii Hunt 1993
Long and Murry 1995
UCMP centra
Metoposaurus fraasi Lucas 1904
    = Buettneria perfecta Case 1922
Heckert 2004
recombined as Koskinonodon perfectus
PEFO 34036, small interclavicle
Reptilia
? Reptilia indet. Laurenti 1768
Heckert 2004 8 specimens
PEFO 20364-67, 20371-72, 20375-76
Trilophosaurus buettneri Case 1928
Murry 1989 3 specimens
PEFO 3893-95, teeth
Archosauriformes indet. Gauthier 1986
Heckert 2004 3 specimens
PEFO 20369
Archosauriformes informal morphotype D
Heckert 2004 1 specimen
PEFO 20368
Archosauriformes informal morphotype J
Heckert 2004 1 specimen
PEFO 20373
Archosauriformes informal morphotype K
Heckert 2004 1 specimen
PEFO 20370
Archosauriformes informal morphotype L
Heckert 2004 2 specimens
PEFO 20366
Vancleavea campi Long and Murry 1995
Nesbitt et al. 2009 1 specimen
PEFO 4855, centrum
Archosauria indet. (Cope 1869)
Heckert 2004 2 specimens
PEFO 20377-78
Reptilia - Theropoda
Theropoda indet. Marsh 1881
Therrien and Fastovsky 2000 1 individual
Reptilia - Ornithischia
? Ornithischia indet. Seeley 1888
Therrien and Fastovsky 2000 2 specimens
PEFO 20338-39
Reptilia
Dinosauriformes indet. Novas 1992
Parker 2006 1 specimen
PEFO 34347
    = Silesauridae indet. Langer et al. 2010
Nesbitt et al. 2010
Possible new taxon
Aetosauria indet. Lydekker 1889
Heckert 2004
? Sphenosuchia indet.
Therrien and Fastovsky 2000
invalid subgroup of Crocodylomorpha
Postosuchus kirkpatricki Chatterjee 1985
    = Rauisuchia indet. Huene 1942
Heckert 2004
invalid subgroup of Suchia
Reptilia - Parasuchidae
Phytosauridae indet. Jaeger 1828
Therrien and Fastovsky 2000 8 specimens
replaced by Mystriosuchinae
PEFO 20340, 20384-89, 20393
Rutiodon sp. Emmons 1856
"group A"
    = Leptosuchus sp. Case 1922
Long and Murry 1995
UCMP, partial skull, squamosal, humerus
Reptilia
? Crosbysaurus sp. Heckert 2004
Heckert 2004 1 specimen
PEFO 20337
Crosbysaurus harrisae Heckert 2004
Heckert 2004 1 specimen
PEFO 20336
see common names

Geography
Country:United States State/province:Arizona County:Apache
Coordinates: 34.9° North, 109.8° West (view map)
Paleocoordinates:10.6° North, 48.3° West
Basis of coordinate:stated in text
Altitude:5481 feet
Geographic resolution:outcrop
Time
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
Stratigraphy
Formation:Chinle Member:Blue Mesa
Stratigraphic resolution:bed
Stratigraphy comments: "stratigraphically several meters lower than PFV 121"; Parker & Irmis (2005: fig. 8) show this high in the Blue Mesa Member. Upper Blue MEsa Mbr. is dated at 220.1 Ma.
Lithology and environment
Primary lithology:paleosol/pedogenic,green,blue calcareous mudstone
Secondary lithology:paleosol/pedogenic mudstone
Includes fossils?Y
Lithology description: lower part with gleyed paleosols, poorly drained, reduced. upper part with "bluish calcic horizon toward the top of the sequence, in which the bones are thought to be preserved", and carbonate nodules.
Environment:crevasse splay
Geology comments: local paleochannel scours dissect mudstones with paleosols; floodplain-dominated fluvial system with suspension-load, high-sinuosity streams. Bones preserved in distal floodplain, with sediments deposited by crevasse splays and sheet flooding.
Taphonomy
Modes of preservation:body
Degree of concentration:dispersed
Size of fossils:macrofossils,mesofossils
Associated major elements:some
Disassociated major elements:many
Disassociated minor elements:many
Fragmentation:frequent
Collection methods and comments
Collection methods:surface (float),surface (in situ),mechanical,field collection
Reason for describing collection:paleoecologic analysis
Museum repositories:NMMNH
Collection dates:1998
Metadata
Also known as:Dawn of the Dinosaurs, PEFO 85025, UCMP V7038, MNA 302/8, SMU 228, Camp Butte N1
Database number:48547
Authorizer:M. Carrano, R. Butler Enterer:M. Carrano, R. Butler
Modifier:M. Carrano Research group:vertebrate
Created:2005-03-22 19:53:32 Last modified:2018-04-23 17:04:03
Access level:the public Released:2005-03-22 19:53:32
Creative Commons license:CC BY
Reference information

Primary reference:

12930.ETE P. A. Murry and R. A. Long. 1989. Geology and paleontology of the Chinle Formation, Petrified Forest National Park and vicinity, Arizona and a discussion of vertebrate fossils of the southwestern Upper Triassic. In S. G. Lucas and A. P. Hunt (eds.), Dawn of the Age of Dinosaurs in the American Southwest, New Mexico Museum of Natural History, Albuquerque 29-64 [M. Carrano/M. Carrano/M. Carrano]

Secondary references:

17273ETE A. B. Heckert. 2004. Late Triassic microvertebrates from the lower Chinle Group (Otischalkian-Adamanian: Carnian), southwestern U.S.A. New Mexico Museum of Natural History and Science Bulletin 27:1-170 [M. Carrano/M. Carrano]
24941ETE A. B. Heckert and S. G. Lucas. 2006. Micro- and small vertebrate biostratigraphy and biochronology of the Upper Triassic Chinle Group, southwestern USA. In J. D. Harris, S. G. Lucas, J. A. Spielmann, M. G. Lockley, A. R. C. Milner, J. I. Kirkland (eds.), The Triassic-Jurassic Terrestrial Transition. New Mexico Museum of Natural History and Science Bulletin 37:94-104 [M. Carrano/M. Carrano/P. Wagner]
17974ETE A. P. Hunt and J. Wright. 1999. New discoveries of Late Triassic dinosaurs from Petrified Forest National Park, Arizona. In V. L. Santucci & L. McClelland (eds.), National Park Service Geologic Resources Division Technical Report NPS/NRGRD/GRDTR-99/03. National Park Service Paleontological Research Volume 4:96-100 [M. Carrano/M. Carrano]
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]
12934ETE P. A. Murry. 1989. Microvertebrate fossils from the Petrified Forest and Owl Rock Members (Chinle Formation) in Petrified Forest National Park and vicinity, Arizona. In S. G. Lucas and A. P. Hunt (eds.), Dawn of the Age of Dinosaurs in the American Southwest, New Mexico Museum of Natural History, Albuquerque 249-277 [M. Carrano/M. Carrano/M. Carrano]
24939ETE R. J. Mutter and A. B. Heckert. 2006. Re-investigation of enigmatic fish bones known as colobodontid/perleidid toothplates from the Upper Triassic Chinle Group (southwestern U.S.A.). In J. D. Harris, S. G. Lucas, J. A. Spielmann, M. G. Lockley, A. R. C. Milner, & J. I. Kirkland (eds.), The Triassic-Jurassic Terrestrial Transition. New Mexico Museum of Natural History and Science Bulletin 37:530-542 [M. Carrano/M. Carrano/M. Carrano]
32231 S. J. Nesbitt, C. A. Sidor, R. B. Irmis, K. D. Angielczyk, R. M. H. Smith and L. A. Tsuji. 2010. Ecologically distinct dinosaurian sister group shows early diversification of Ornithodira. Nature 464:95-98 [J. Alroy/J. Alroy]
31327 S. J. Nesbitt, M. R. Stocker, B. J. Small and A. Downs. 2009. The osteology and relationships of Vancleavea campi (Reptilia: Archosauriformes). Zoological Journal of the Linnean Society 157:814-864 [R. Butler/R. Butler/R. Butler]
15512ETE W. Parker and R. B. Irmis. 2005. Advances in Late Triassic vertebrate paleontology based on new material from Petrified Forest National Park, Arizona. Vertebrate Paleontology in Arizona, New Mexico Museum of Natural History and Science Bulletin 29:45-58 [M. Carrano/K. Maguire/M. Carrano]
16671ETE W. G. Parker. 2002. Correlation of locality numbers for vertebrate fossil sites in Petrified Forest National Park, Arizona. A. B. Heckert & S. G. Lucas (eds.), Upper Triassic Stratigraphy and Paleontology. New Mexico Museum of Natural History and Science Bulletin 21:37-42 [M. Carrano/M. Carrano]
31632 W. G. Parker. 2005. Faunal review of the Upper Triassic Chinle Formation of Arizona. In R. D. McCord (ed.), Vertebrate Paleontology of Arizona, Mesa Southwest Museum Bulletin 11:34-54 [R. Butler/R. Butler]
18306ETE W. G. Parker. 2006. The stratigraphic distribution of major fossil localities in Petrified Forest National Park, Arizona. In W. G. Parker, S. R. Ash & R. B. Irmis (eds.), A Century of Research at Petrified Forest National Park, 1906-2006: Geology and Paleontology. Museum of Northern Arizona Bulletin 62:47-61 [M. Carrano/M. Carrano]
5705ETE 1461F. Therrien and D.E. Fastovsky. 2000. Paleoenvironment of early theropods , Chinle Formation (Late Triassic), Petrified Forest National Park, Arizona. Palaios 15:194-211 [A. Behrensmeyer/A. Behrensmeyer/M. Kosnik]