Crocodile Hill locality (SMU Loc. 230, PFV 124): Norian, Arizona
collected by C. L. Camp, P. A. Murry 1923, 1980

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
? Turseodidae indet.
Murry 1989 20 specimens
PEFO 3905
Chondrichthyes - Hybodontiformes - Lonchidiidae
Lissodus humblei (Murry 1981)
Murry 1989 20 specimens
original and current combination Lonchidion humblei
PEFO 3825
? Lissodus humblei (Murry 1981)
Murry 1989 4 specimens
original and current combination Lonchidion humblei
PEFO 3828
Chondrichthyes - Xenacanthiformes - Xenacanthidae
Xenacanthus moorei (Woodward 1889)
Murry 1989 208 specimens
recombined as Triodus moorei
PEFO 3821
Xenacanthus ? moorei (Woodward 1889)
Murry 1989 2 specimens
recombined as Triodus moorei
PEFO 3824, 2847
Actinopteri - Perleidiformes - Colobodontidae
Colobodontidae indet. Stensiö 1916
Murry 1989 3 specimens
PEFO 3839-40
Palaeonisciformes - Redfieldiidae
? Redfieldiidae indet. Hutchinson 1973
Murry 1989 1 specimen
PEFO 3836
Palaeonisciformes - Palaeoniscidae
Palaeoniscidae indet. Vogt 1852
Loughney et al. 2011
Amphibia - Temnospondyli - Metoposauridae
Metoposauridae indet. Watson 1919
Loughney et al. 2011
Apachesaurus gregorii Hunt 1993
Long and Murry 1995 1 specimen
UCMP 27100, centra
Buettneria perfecta Case 1922
Long and Murry 1995 7 individuals
synonym of Anaschisma browni
UCMP 26732, 27103, 27089, 27085, 26695, 26715, 27073, seven incomplete skulls. Large number of pectoral elements
Reptilia - Parasuchidae
Rutiodon adamanensis (Camp 1930)
Murry and Long 1989 3 individuals
recombined as Smilosuchus adamanensis
UCMP 27070, good skull material representing at least three individuals, some postcranial elememnts. Number of other specimens listed with same number
Reptilia
Stagonolepis wellesi (Long and Ballew 1985)
Murry and Long 1989 1 specimen
original and current combination Calyptosuchus wellesi
UCMP fragments of paramedian scute
Vancleavea campi Long and Murry 1995
Nesbitt et al. 2009 1 specimen
UCMP 152647, caudal vertebra
Acallosuchus rectori n. gen., n. sp. Long and Murry 1995
Long and Murry 1995 1 individual
UCMP 27096, partial skull
unclassified
Colognathus obscurus (Case 1928)
Long and Murry 1995 1 specimen
UCMP 136075, partial tooth
Anomodontia - Stahleckeriidae
Placerias sp. Lucas 1904
Murry and Long 1989 1 individual
    = ? Placerias sp. Lucas 1904
Long and Murry 1995
UCMP 27095, pair of lower jaws
    = Placerias hesternus Lucas 1904
Loughney et al. 2011
Dipnomorpha - Arganodontidae
Arganodus sp. Martin 1979
Long and Murry 1995
see common names

Geography
Country:United States State/province:Arizona County:Navajo
Coordinates: 34.9° North, 109.8° West (view map)
Paleocoordinates:10.6° North, 48.3° West
Basis of coordinate:stated in text
Geographic resolution:small collection
Time
Period:Triassic Epoch:Late/Upper Triassic
Stage:Norian 10 m.y. bin:Triassic 4
Key time interval:Norian
Age range of interval:227.00000 - 208.50000 m.y. ago
Stratigraphy
Formation:Chinle Member:Blue Mesa
Stratigraphic resolution:bed
Stratigraphy comments: "A greenish-gray mudstone in the upper portion ofthe Blue Mesa Member of the Chinle Formation(sensu Woody 2006) (Unit 14 of the Blue Mesa Member [Petrified Forest Formation, Chinle Group] type section of Lucas 1993). This horizon is situated approximately 14 meters above the Newspaper Rock Bed and approximately 9 meters below the base of the overlying Sonsela Member. Palynomorphs recovered from this horizon are considered to be latest Carnian in age, but recent recalibration of the Triassic timescale based on magnetostratigraphy and a new radiometric date from European marine sections suggest that most of the Chinle Formation, including this horizon, may be Norian in age."
Lithology and environment
Primary lithology:intraclastic,gray argillaceous,cherty/siliceous siltstone
Lithology description: "silty mudstone...color varies from light gray (2.5 Y N7) to gray (2.5 Y N5-N7); fossil horizon 0.04 meter thick muddy siltstone with rip-up clasts; minor red chert; some organics; grades upward into clay pebble laminae"
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Associated major elements:some
Disassociated major elements:some
Disassociated minor elements:some
Collection methods and comments
Collection methods:selective quarrying,field collection
Reason for describing collection:general faunal/floral analysis
Museum repositories:UCMP
Collectors:C. L. Camp, P. A. Murry Collection dates:1923, 1980s
Metadata
Also known as:Petrified Forest, Crocodile Hill Quarry, Blue Mesa
Database number:84264
Authorizer:M. Carrano, R. Butler Enterer:M. Carrano, R. Butler
Modifier:M. Carrano Research group:vertebrate
Created:2008-10-02 08:56:37 Last modified:2021-10-29 10:00:37
Access level:the public Released:2008-10-02 08:56:37
Creative Commons license:CC BY
Reference information

Primary reference:
64865. D. D. Gillette, S. R. Ash, and R. A. Long. 1986. Paleontology of the Petrified Forest National Park, Arizona. In J. D. Nations, C. M. Conway, & G. A. Swann (eds.), Geology of Central and Northern Arizona. Field Trip Guidebook for Geological Society of America Rocky Mountain Section Meeting 58-69 [M. Carrano/M. Carrano]

Secondary references:

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]
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/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]
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]
12930ETE 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]
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]
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]