Crystal Forest locality (SMU Loc. 233) (Triassic of the United States)

Also known as Petrified Forest, PEFO

Where: Navajo County, Arizona (34.9° N, 109.8° W: paleocoordinates 10.5° N, 48.3° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Sonsela Member (Chinle Formation), Norian (228.0 - 208.5 Ma)

• bed-level stratigraphic resolution

Environment/lithology: fluvial; medium-grained, gypsiferous, gray, green, cherty/siliceous siltstone and gray, white, argillaceous siltstone

• "siltstone (poorly sorted; noncalcareous; with gypsum laminae and chert grains from medium sand up to 5 mm; light olive gray 5 & 6/2) grading laterally into muddy siltstone (fossiliferous; dark gray 5 YR 4/1 with white mottles 2.5 Y N8)"

Size classes: macrofossils, mesofossils

Collected by P. A. Murry

Primary reference: 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]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 84265: authorized by Matthew Carrano, entered by Matthew Carrano on 02.10.2008, edited by Mark Uhen and Richard Butler

Creative Commons license: CC BY (attribution)

Taxonomic list

Equisetopsida
 Pinidae - Pinidae
Chondrichthyes
 Hybodontiformes - Acrodontidae
Acrodus sp.2 Agassiz 1834 elasmobranch
PEFO 3832, 3911, "n. sp."
Osteichthyes
 Palaeonisciformes - Redfieldiidae
? Redfieldiidae indet.2 Hutchinson 1973
PEFO 3838
 Palaeonisciformes - Palaeoniscidae
cf. Turseodus sp. Leidy 1857
PEFO 3907-08
Reptilia
 Phytosauria - Parasuchidae
Rutiodon sp. Emmons 1856 archosaur
 Pseudosuchia - Stagonolepididae
Paratypothorax sp.3 Long and Ballew 1985 aetosaur
 Pseudosuchia -
"Desmatosuchus haplocerus" = Episcoposaurus haplocerus
"Desmatosuchus haplocerus" = Episcoposaurus haplocerus Cope 1892 aetosaur
Osteichthyes
 Ceratodontiformes - Arganodontidae
Arganodontidae indet. Martin 1982 Australian lungfish