Dinosaur Wash, PFV 122, Dying Grounds: Norian, Arizona
collected 1998
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
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Vertebrata indet.
Lamarck 1801
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Heckert 2004 | 4 specimens | ||||||||
PEFO 20341, 20361-62, 20391 | ||||||||||
Chondrichthyes
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? Chondrichthyes indet.
Huxley 1880
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Heckert 2004 | 3 elements | ||||||||
PEFO 20357-59 | ||||||||||
Chondrichthyes
- Xenacanthiformes
- Xenacanthidae
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Xenacanthus moorei
(Woodward 1889)
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Murry 1989 | 172 specimens | ||||||||
PEFO 3822-23, 3897 | ||||||||||
= "Xenacanthus" moorei
Woodward 1889
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Heckert 2004 | |||||||||
recombined as Triodus moorei | ||||||||||
PEFO 20349-50 | ||||||||||
? Xenacanthus moorei
(Woodward 1889)
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Murry 1989 | 1 specimen | ||||||||
recombined as Triodus moorei | ||||||||||
PEFO 3896 | ||||||||||
Chondrichthyes
- Hybodontiformes
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Hybodontoidea indet.
Agassiz 1834
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Heckert 2004 | 1 specimen | ||||||||
PEFO 20348 | ||||||||||
Chondrichthyes
- Hybodontiformes
- Lonchidiidae
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Lissodus humblei
(Murry 1981)
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Murry 1989 | 14 specimens | ||||||||
original and current combination Lonchidion humblei | ||||||||||
PEFO 3826-27 | ||||||||||
Chondrichthyes
- Hybodontiformes
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? Lissodus sp.
Brough 1935
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Murry 1989 | 3 specimens | ||||||||
PEFO 3829, 3898-99 | ||||||||||
Osteichthyes
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Osteichthyes indet.
Huxley 1880
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Heckert 2004 | 5 specimens | ||||||||
PEFO 20344, 20356, 20360, 20379, 20390 | ||||||||||
Dipnomorpha
- Arganodontidae
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Arganodontidae indet.
Martin 1982
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= ? Arganodus sp.
Martin 1979
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Heckert 2004 | |||||||||
Amphibia
- Temnospondyli
- Metoposauridae
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Metoposauridae indet.
Watson 1919
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Therrien and Fastovsky 2000 | 7 specimens | ||||||||
PEFO 20351-53, 20381-83 | ||||||||||
Metoposaurus fraasi
Lucas 1904
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= Buettneria perfecta
Case 1922
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Heckert 2004 | |||||||||
synonym of Anaschisma browni | ||||||||||
PEFO 34036, small interclavicle | ||||||||||
Apachesaurus gregorii
Hunt 1993
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Long and Murry 1995 | |||||||||
UCMP centra | ||||||||||
Reptilia
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? Reptilia indet.
Laurenti 1768
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Heckert 2004 | 8 specimens | ||||||||
PEFO 20364-67, 20371-72, 20375-76 | ||||||||||
Trilophosaurus buettneri
Case 1928
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Murry 1989 | 3 specimens | ||||||||
PEFO 3893-95, teeth | ||||||||||
Archosauriformes indet.
Gauthier 1986
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Heckert 2004 | 3 specimens | ||||||||
PEFO 20369 | ||||||||||
Archosauriformes informal morphotype D
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Heckert 2004 | 1 specimen | ||||||||
PEFO 20368 | ||||||||||
Archosauriformes informal morphotype J
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Heckert 2004 | 1 specimen | ||||||||
PEFO 20373 | ||||||||||
Archosauriformes informal morphotype K
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Heckert 2004 | 1 specimen | ||||||||
PEFO 20370 | ||||||||||
Archosauriformes informal morphotype L
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Heckert 2004 | 2 specimens | ||||||||
PEFO 20366 | ||||||||||
Archosauria indet.
(Cope 1869)
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Heckert 2004 | 2 specimens | ||||||||
PEFO 20377-78 | ||||||||||
? Sphenosuchia indet.
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Therrien and Fastovsky 2000 | |||||||||
invalid subgroup of Crocodylomorpha | ||||||||||
Aetosauria indet.
Lydekker 1889
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Heckert 2004 | |||||||||
Postosuchus kirkpatricki
Chatterjee 1985
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= Rauisuchia indet.
Huene 1942
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Heckert 2004 | |||||||||
invalid subgroup of Suchia | ||||||||||
Reptilia
- Parasuchidae
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Phytosauridae indet.
Jaeger 1828
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Therrien and Fastovsky 2000 | 8 specimens | ||||||||
replaced by Mystriosuchinae | ||||||||||
PEFO 20340, 20384-89, 20393 | ||||||||||
Rutiodon sp.
Emmons 1856
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"group A" | ||||||||||
= Leptosuchus sp.
Case 1922
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Long and Murry 1995 | |||||||||
UCMP, partial skull, squamosal, humerus | ||||||||||
Reptilia
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Dinosauriformes indet.
Novas 1992
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Parker 2006 | 1 specimen | ||||||||
PEFO 34347 | ||||||||||
= Silesauridae indet.
Langer et al. 2010
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Nesbitt et al. 2010 | |||||||||
Possible new taxon | ||||||||||
Reptilia
- Ornithischia
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? Ornithischia indet.
Seeley 1888
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Therrien and Fastovsky 2000 | 2 specimens | ||||||||
PEFO 20338-39 | ||||||||||
Reptilia
- Theropoda
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Theropoda indet.
Marsh 1881
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Therrien and Fastovsky 2000 | 1 individual | ||||||||
Reptilia
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Vancleavea campi
Long and Murry 1995
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Nesbitt et al. 2009 | 1 specimen | ||||||||
PEFO 4855, centrum | ||||||||||
? Crosbysaurus sp.
Heckert 2004
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Heckert 2004 | 1 specimen | ||||||||
PEFO 20337 | ||||||||||
Crosbysaurus harrisae
Heckert 2004
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Heckert 2004 | 1 specimen | ||||||||
PEFO 20336 | ||||||||||
Actinopterygii
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? Actinopterygii indet.
Cope 1887
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Heckert 2004 | 2 specimens | ||||||||
PEFO 20346-47 | ||||||||||
= Actinopterygii indet.
Cope 1887
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Mutter and Heckert 2006 | |||||||||
Actinopteri
- Perleidiformes
- Colobodontidae
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Colobodontidae indet.
Stensiö 1916
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Murry 1989 | 14 specimens | ||||||||
PEFO 3841-42, 3902-03 | ||||||||||
Palaeonisciformes
- Redfieldiidae
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Redfieldiidae indet.
Hutchinson 1973
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Murry 1989 | 4 specimens | ||||||||
PEFO 3834, 20344, 20354, 20363 | ||||||||||
? Redfieldiidae indet.
Hutchinson 1973
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Murry 1989 | 3 specimens | ||||||||
PEFO 3835, 3846, 3901 | ||||||||||
Palaeonisciformes
- Palaeoniscidae
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aff. Turseodus sp.
Leidy 1857
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Murry 1989 | 2 specimens | ||||||||
PEFO 3846, 3906, 20342-43 | ||||||||||
= cf. Turseodus sp.
Leidy 1857
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Murry and Long 1989 | |||||||||
unclassified
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Puercosuchus traverorum n. gen., n. sp.
Marsh et al. 2022
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Marsh et al. 2022 | 8 individuals | ||||||||
Site "preserves a minimum of eight individuals of varying sizes". Holotype: PEFO 43914; associated right premaxilla and maxilla | ||||||||||
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 | ||
Age estimate: | 218 ± 1 Ma (U/Pb)222.74 to 216.97 Ma (paleomagnetic) |
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.
Irmis et al. 2011: The SMC date of 218.1 ± 0.7 Ma (Fig. 2) indicates that the uppermost Blue Mesa Member of the Chinle Formation and overlying strata are mid-Norian or younger in age based on the most recent Late Triassic timescale (Furin et al., 2006; Mundil et al., 2010; Muttoni et al., 2004, 2010). Kent et al. 2019: Magnetozones PF5r to PF10n in the underlying 65‐m‐thick section of the mudstone‐dominated Blue Mesa and Mesa Redondo members plausibly correlate to chrons E13r to E9n, |
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: | fine channel fill |
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, E. Dunne | Enterer: | M. Carrano, E. Dunne, R. Butler |
Modifier: | G. Varnham | Research group: | vertebrate |
Created: | 2005-03-22 19:53:32 | Last modified: | 2022-01-21 08:23:20 |
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:
17273 | ETE | 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] |
24941 | ETE | 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] |
17974 | ETE | 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] |
79158 | R. B. Irmis, R. Mundil, J. W. Martz and W. G. Parker. 2011. High-resolution U-Pb ages from the Upper Triassic Chinle Formation (New Mexico, USA) support a diachronous rise of dinosaurs. Earth and Planetary Science Letters 309:258-267 [P. Mannion/G. Varnham/G. Varnham] | |
79159 | D. V. Kent, P. E. Olsen, C. Lepre, C. Rasmussen, R. Mundil, G. E. Gehrels, D. Giesler, R. B. Irmis, J. W. Geissman and W. G. Parker. 2019. Magnetochronology of the Entire Chinle Formation (Norian Age) in a Scientific Drill Core From Petrified Forest National Park (Arizona, USA) and Implications for Regional and Global Correlations in the Late Triassic. Geochemistry, Geophysics, Geosystems [P. Mannion/G. Varnham] | |
14122 | ETE | 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/P. Wagner] |
78440 | K. M. Loughney, D. E. Fastovsky, and W. G. Parker. 2011. Vertebrate fossil preservation in blue paleosols from the Petrified Forest National Park, Arizona, with implications for vertebrate biostratigraphy in the Chinle Formation. Palaios 26(11):700-718 [M. Carrano/M. Carrano/M. Carrano] | |
83433 | A. D. Marsh, W. G. Parker, S. J. Nesbitt, B. T. Kligman, and M. R. Stocker. 2022. Puercosuchus traverorum n. gen. n. sp.: a new malerisaurine azendohsaurid (Archosauromorpha: Allokotosauria) from two monodominant bonebeds in the Chinle Formation (Upper Triassic, Norian) of Arizona. Journal of Paleontology 96:1-39 [E. Dunne/E. Dunne] | |
12934 | ETE | 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] |
24939 | ETE | 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/P. Wagner] |
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] | |
15512 | ETE | 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] |
16671 | ETE | 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] | |
18306 | ETE | 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] |
5705 | ETE 1461 | F. 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] |