Apache Canyon, SMU Loc. #129 (Triassic of the United States)

Where: Quay County, New Mexico (35.0° N, 103.4° W: paleocoordinates 9.8° N, 43.1° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Redonda Formation (Chinle Group), Norian (228.0 - 208.5 Ma)

• Apachean

• bed-level stratigraphic resolution

Environment/lithology: fluvial-deltaic; hematitic, intraclastic, red, argillaceous mudstone and white sandstone

• "may represent a lacustrine shoreface environment...some input by fluvial or lacustrine deltaic sedimentation"
• "a red mudstone" with "pink hematite-rich clay clasts" that "probably represent 'rip-ups' associated with fluvial or fluviodeltaic sedimentation." "The fossiliferous horizon is approximately 1.5 m thick and is sandwiched between thin (0.15 m) white fissile siltstone layers"

Size class: mesofossils

Collected by P. A. Murry in 1983; reposited in the NMMNH

Collection methods: bulk, sieve,

Primary reference: P. A. Murry. 1987. Notes on the stratigraphy and paleontology of the Upper Triassic Dockum Group. Journal of the Arizona-Nevada Academy of Science 22:7-84 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 83739: authorized by Matthew Carrano, entered by Matthew Carrano on 28.08.2008, edited by Richard Butler

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Osteichthyes
 Palaeonisciformes - Redfieldiidae
Redfieldiidae indet.3
Redfieldiidae indet.3 Hutchinson 1973
Actinopteri
 Perleidiformes - Colobodontidae
Colobodontidae indet.2
Colobodontidae indet.2 Stensiö 1916
Osteichthyes
 Ceratodontiformes - Arganodontidae
Arganodus sp.2
Arganodus sp.2 Martin 1979 Australian lungfish
Amphibia
 Temnospondyli - Metoposauridae
Metoposauridae indet.1
Metoposauridae indet.1 Watson 1919 tetrapod
Reptilia
 Eosuchia - Sphenodontidae
Sphenodontidae indet.3
Sphenodontidae indet.3 Cope 1871 lepidosaur
1Hunt and Lucas 1993; 2Long and Murry 1995; 3Murry 1989