Lacey Point SW1, SMU 229, PFV 27: Norian, Arizona
collected by UCMP 1982, 1985
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Palaeonisciformes
- Redfieldiidae
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Redfieldiidae indet.
Hutchinson 1973
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Long and Murry 1995 | |||||||||
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Actinopteri
- Perleidiformes
- Colobodontidae
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Colobodontidae indet.
Stensiö 1916
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Long and Murry 1995 | |||||||||
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Amphibia
- Temnospondyli
- Metoposauridae
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Apachesaurus gregorii
Hunt 1993
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1 element | |||||||||
| UCMP, centrum | ||||||||||
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Reptilia
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Reptilia indet.
Laurenti 1768
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Typothorax coccinarum
Cope 1875
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1 element | |||||||||
| UCMP 126937, paramedian plate fragment | ||||||||||
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Reptilia
- Parasuchidae
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Pseudopalatinae indet.
Long and Murry 1995
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Long and Murry 1995 | 3 elements | ||||||||
| replaced by Mystriosuchini | ||||||||||
| UCMP, three teeth | ||||||||||
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Dipnomorpha
- Arganodontidae
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Arganodus sp.
Martin 1979
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Long and Murry 1995 | |||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Arizona | County: | Apache |
| Coordinates: | 35.0° North, 109.8° West (view map) | ||||
| Paleocoordinates: | 10.7° North, 48.3° West | ||||
| Basis of coordinate: | stated in text | ||||
| 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: | 227.00000 - 208.50000 m.y. ago |
Stratigraphy
| Formation: | Chinle | Member: | Petrified Forest | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: "Upper Petrified Forest Formation"; now known as the Petrified Forest Member (Woody 2003) or the Painted Desert Member of the Petrified Forest Formation (Heckert & Lucas 2002).
Between 1st and 2nd Painted Desert Sandstones, about 27.4 m below Painted Desert Sandstone 2 1.5 m from bottom of section; lower of two fossiliferous layers at Dinosaur Hill | |||||
Lithology and environment
| Primary lithology: | gray,red silty,calcareous mudstone |
| Secondary lithology: | paleosol/pedogenic,concretionary,gray,red silty,calcareous mudstone |
| Includes fossils? | Y |
| Lithology description: "silty mudstone/cay pebble conglomerate at base (dark reddish brown 5 YR 3/3 with white mottled zones 2.5 Y 8/0 and calcareous pedogenic nodules) grading into silty mudstone (calcareous; decreasing carbonate nodules; weak red 2.5 YR 4/2 with light gray 2.5 Y 7/2 mottled zones ) grading into primary fossiliferous layer of calcareous silty mudstone (weak red 2.5 YR 4/2 with light gray 2.5 T 7/0 mottles) grading into calcareous silty mudstone (with fine-medium sand-size pedogenic carbonate nodules; weak red 2.5 YR 4/2 with mottled zones of light gray 2.5 Y 7/0) | |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,mesofossils |
| Fragmentation: | frequent |
Collection methods and comments
| Collection methods: | mechanical,field collection | ||
| Reason for describing collection: | general faunal/floral analysis | ||
| Museum repositories: | UCMP | ||
| Collectors: | UCMP | Collection dates: | 1982, 1985 |
| Collection method comments: Microvertebrate material mistakenly referred by Murry & Long (1989) to the Dinosaur Hill locality is actually from this site. Updated faunal list is taken from Long & Murry (1995) | |||
Metadata
| Also known as: | "Dinosaur Hill", Mesa Mound, UCMP V82242, PEFO 85106 | ||
| Database number: | 48421 | ||
| Authorizer: | M. Carrano, R. Butler | Enterer: | M. Carrano, R. Butler |
| Modifier: | R. Butler | Research group: | vertebrate |
| Created: | 2005-03-18 07:29:38 | Last modified: | 2010-01-18 08:39:54 |
| Access level: | the public | Released: | 2005-03-18 07:29:38 |
| 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:
| 15654 | ETE | E. H. Colbert. 1989. The Triassic dinosaur Coelophysis. Museum of Northern Arizona Bulletin 57:1-174 [M. Carrano/K. Maguire/M. Carrano] |
| 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] |
| 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] |
| 16668 | ETE | 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] |