Coyote Amphitheater, NMMNH L-911: Norian, New Mexico

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Unionida - Unionidae
Unionidae indet. Rafinesque 1820
Zeigler et al. 2005
Reptilia - Testudines
? Testudines indet. (Batsch 1788)
Zeigler et al. 2005 2 specimens
NMMNH P- 44806
Reptilia - Pterosauria
Zeigler et al. 2005 1 specimen
vertebra
Reptilia
Zeigler et al. 2005 1 specimen
NMMNH P-44804, limb fragment
Reptilia - Parasuchidae
Parasuchidae indet. Lydekker 1885
Zeigler et al. 2005
NMMNH P-44808, osteoderms
    = Phytosauridae indet. Jaeger 1828
Heckert et al. 2005
Zeigler et al. 2005
Reptilia
Heckert et al. 2005
Zeigler et al. 2005
NMMNH P-44811, scutes
Zeigler et al. 2005 1 specimen
vertebra
Amphibia - Temnospondyli - Metoposauridae
Zeigler et al. 2005 4 specimens
NMMNH P-44861, 44810, 44809, 44807
see common names

Geography
Country:United States State/province:New Mexico County:Rio Arriba
Coordinates: 36.2° North, 106.6° West (view map)
Paleocoordinates:11.2° North, 34.8° West (Wright 2013)
Basis of coordinate:stated in text
Geographic resolution:local area
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
Geological group:Chinle Formation:Petrified Forest Member:Mesa Montosa
Stratigraphic resolution:bed
Lithology and environment
Primary lithology:"cross stratification",brown calcareous siltstone
Secondary lithology:intraclastic,brown conglomerate
Lithology description: "Siltstone and conglomerate: siltstone is moderate brown (5 YR 4/4), very calcareous and ripple laminar; conglomerate is brownish gray (5 Y$ 4/1) with clasts of mudstone and siltstone up to 1 cm in diameter..."
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Museum repositories:NMMNH
Metadata
Database number:80926
Authorizer:M. Carrano Enterer:M. Carrano
Modifier:M. Carrano Research group:vertebrate
Created:2008-05-21 19:20:58 Last modified:2025-02-22 15:12:02
Access level:the public Released:2008-05-21 19:20:58
Creative Commons license:CC0
Reference information

Primary reference:
27232.ETE S. G. Lucas, K. E. Ziegler, A. B. Heckert and A. P. Hunt. 2003. Upper Triassic stratigraphy and biostratigraphy, Chama Basin, north-central New Mexico. In K. E. Ziegler, A. B. Heckert, & S. G. Lucas (eds.), Paleontology and Geology of the Upper Triassic (Revueltian) Snyder Quarry, New Mexico. New Mexico Museum of Natural History and Science Bulletin 24:15-39 [M. Carrano/M. Carrano]

Secondary references:

31961 A. B. Heckert, S. G. Lucas, R. M. Sullivan, A. P. Hunt, and J. A. Spielmann. 2005. The vertebrate fauna of the Upper Triassic (Revueltian: early-mid Norian) Painted Desert Member (Petrified Forest Formation: Chinle Group) in the Chama Basin, northern New Mexico. In S. G. Lucas, K. E. Ziegler, V. W. Lueth, & D. E. Owen (eds.), New Mexico Geological Society, 56th Field Conference Guidebook, Geology of the Chama Basin 56:302-318 [R. Butler/R. Butler/M. Carrano]
80962 K. E. Zeigler, S. G. Lucas, and V. L. Morgan. 2005. Vertebrate fauna of the Upper Triassic Mesa Montosa Member (Petrified Forest Formation, Chinle Group), Chama Basin, northern New Mexico. In S. G. Lucas, K. E. Zeigler, V. W. Lueth, & D. E. Owen (eds.), New Mexico Geological Society, 56th Field Conference, Geology of the Chama Basin 56:335-340 [M. Carrano/M. Carrano]