Giving Site, PFV 231: Norian, Arizona

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Amphibia - Temnospondyli - Metoposauridae
1 specimen
PEFO 33977, partial skull
Reptilia
Loughney et al. 2011
Reptilia - Shuvosauridae
Limb bones
Reptilia
Loughney et al. 2011
Postosuchus sp. Chatterjee 1985
2 specimens
PEFO 33954, partial skeleton. PEFO 33958, distal fibula
"numerous skeletons"
3 individuals
Partial sacrum with associated armour and two juvenile specimens
Reptilia - Parasuchidae
Reptilia
1 individual
PEFO 33982, partial ilium, proximal femur and vertebral centra
Marsh et al. 2019
Reptilia - Coelophysidae
4 individuals
PEFO 33984, proximal femur. Three undescribed partial skeletons
Reptilia
3 specimens
PEFO 33978, partial skeleton; PEFO 34077, vertebrae; PEFO 34234, caudal centrum
Nesbitt et al. 2009
Dipnoi
Dipnoi indet. Müller 1884
Bivalvia
unclassified
Polypodiopsida - Equisetales - Equisetaceae
Equisetites sp. Sternberg 1833
Loughney et al. 2011
see common names

Geography
Country:United States State/province:Arizona County:Apache
Coordinates: 35.1° North, 109.8° West (view map)
Paleocoordinates:10.6° North, 37.6° West (Wright 2013)
Basis of coordinate:based on nearby landmark
Geographic resolution:small collection
Time
Period: Triassic Epoch: Late Triassic
Stage: Norian 10 m.y. bin: Triassic 4
Key time interval: Norian
Age range of interval: 227 - 208.5 m.y. ago
Stratigraphy
Formation:Chinle Member:Petrified Forest
Stratigraphic resolution:bed
Stratigraphy comments: "Approximately 54 meters below a prominent tuffaceous sandstone bed known as the Black Forest Bed (Ash 1992). Riggs et al. (2003) have determined a maximum age for this bed, and thus a minimum age for the quarries, of 213 +/- 1.7 based on U-Pb ages of detrital zircons."
Lithology and environment
Primary lithology:gray,green claystone
Secondary lithology:gray,red silty claystone
Includes fossils?Y
Includes fossils?Y
Lithology description: "two clay-rich blue layers in which fossils from the site are found: a lower, light greenish gray (5GY 7/1) claystone and overlying red (2.5YR 3/2 to 10R 4/1) and gray (N/3) silty claystone that pinch out laterally"
Environment:fine channel fill
Geology comments: "a large abandoned channel"
Taphonomy
Modes of preservation:body
Lagerst�tten type:concentrate
Degree of concentration:concentrated
Size of fossils:macrofossils
Preservation of anatomical detail:good
Associated major elements:some
Fragmentation:occasional
Collection methods and comments
Collection excludes:all macrofossils,some genera
Collection methods:selective quarrying,surface (float),surface (in situ),mechanical,field collection
Reason for describing collection:taxonomic analysis
Metadata
Also known as:PEFO
Database number:57685
Authorizer:M. Carrano, B. Gee, R. Butler Enterer:K. Maguire, M. Carrano, B. Gee, R. Butler
Modifier:M. Carrano Research group:vertebrate
Created:2005-12-16 11:18:42 Last modified:2025-02-22 15:12:02
Access level:the public Released:2005-12-16 11:18:42
Creative Commons license:CC0
Reference information

Primary reference:
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]

Secondary references:

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]
75613 A. D. Marsh, W. G. Parker, M. C. Langer and S. J. Nesbitt. 2019. Redescription of the holotype specimen of Chindesaurus bryansmalli Long and Murry, 1995 (Dinosauria, Theropoda), from Petrified Forest National Park, Arizona. Journal of Vertebrate Paleontology 39(3):e1645682 [B. Gee/B. Gee]
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]
16668ETE W. G. Parker. 2005. Petrified Forest National Park: a roadlog. S. J. Nesbitt, W. G. Parker, & R. B. Irmis (eds.), Guidebook to the Triassic Formations of the Colorado Plateau in Northern Arizona: Geology, Paleontology, and History. Mesa Southwest Museum Bulletin 9:33-50 [M. Carrano/M. Carrano]
31328 W. G. Parker and B. J. Barton. 2008. New information on the Upper Triassic archosauriform Vancleavea campi based on new material from the Chinle Formation of Arizona. Palaeontologia Electronica 11(3):14A [R. Butler/R. Butler]