NMMNH L-4211, Apache Canyon: Norian, New Mexico
collected by P. Sealey

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Osteichthyes
2 specimens
NMMNH P-36187, 37068, tooth and scute
Spielmann and Lucas 2012
Osteichthyes - Parasuchidae
28 specimens
NMMNH P-31094, giant skull. NMMNH P-31095, smaller skull. NMMNH P-31096-31099, 31101, 31102, 31300-31303, 31588-31591, 36183-36186, 36188, 39298,39299, 39301-39305
Spielmann and Lucas 2012
Osteichthyes
1 specimen
NMMNH P-31100, 63426, 63427, three paramedian plates
Spielmann and Lucas 2012
Osteichthyes - Semionotiformes - Semionotidae
2 specimens
NMMNH P-31298, 31299, scales
see common names

Geography
Country:United States State/province:New Mexico County:Quay
Coordinates: 35.0° North, 103.7° West (view map)
Paleocoordinates:9.6° North, 32.6° 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: 227.3 - 205.7 m.y. ago
Stratigraphy
Geological group:Chinle Formation:Redonda Member:Quay
Stratigraphic resolution:bed
Stratigraphy comments: upper part of Redonda Formation, 2.3 m below a prominent ledge-forming sandstone, the "Redonda Bench". Apachean LVF.
Lithology and environment
Primary lithology: conglomerate
Secondary lithology:bentonitic mudstone
Includes fossils?Y
Lithology description: "infraformational conglomerate fining upward into a bentonitic mudstone"
Environment:channel lag
Geology comments: Small-scale channel draining into a lake
Taphonomy
Modes of preservation:body
Degree of concentration:-single event
Size of fossils:macrofossils,mesofossils
Spatial orientation:random
Preservation of anatomical detail:good
Abundance in sediment:common
Articulated whole bodies:none
Associated major elements:some
Disassociated major elements:some
Disassociated minor elements:many
Size sorting:medium
Fragmentation:occasional
Bioerosion:none
Encrustation:none
Temporal resolution:snapshot
Spatial resolution:parautochthonous
Collection methods and comments
Collection methods:selective quarrying,surface (in situ),field collection
Reason for describing collection:taxonomic analysis
Museum repositories:NMMNH
Collectors:P. Sealey
Metadata
Database number:93672
Authorizer:R. Butler Enterer:R. Butler
Modifier:R. Butler Research group:vertebrate
Created:2010-01-27 08:23:26 Last modified:2025-02-22 15:12:02
Access level:the public Released:2010-01-27 08:23:26
Creative Commons license:CC0
Reference information

Primary reference:
31762. A. B. Heckert, S. G. Lucas, A. P. Hunt and J. D. Harris. 2001. A giant phytosaur (Reptilia: Archosauria) skull from the Redondo Formation (Upper Triassic: Apachean) of east-central New Mexico. New Mexico Geological Society, 52nd Field Conference, Geology of the Llano Estacado 52:169-176 [R. Butler/R. Butler]

Secondary references:

31715 M. T. Carrano. 2010. Fossil Vertebrate Collections. New Mexico Museum of Natural History and Science [R. Butler/R. Butler/M. Carrano]
31760 J. A. Spielmann, S. G. Lucas, and A. P. Hunt. 2006. The vertebrate macrofauna of the Upper Triassic (Apachean) Redonda Formation, east-central New Mexico. 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 37:502-509 [R. Butler/R. Butler/M. Carrano]
60778 J. A. Spielmann and S. G. Lucas. 2012. Tetrapod fauna of the Upper Triassic Redonda formation, East-Central New Mexico: the characteristic assemblage of the Apachean land-vertebrate faunachron. New Mexico Museum of Natural History and Science, Bulletin 55:1-119 [R. Butler/R. Butler]