Also known as Paradox Valley, Bedrock
Where: Montrose County, Colorado (38.3° N, 108.9° W: paleocoordinates 14.5° N, 47.3° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Rock Point Formation (Chinle Group), Norian to Norian (228.0 - 201.3 Ma)
• ca. 120 ft. (36 m) below base of Wingate Sandstone and 75 ft above river level
• group of beds-level stratigraphic resolution
Environment/lithology: fine channel fill; nodular, red, sandy siltstone
Size class: macrofossils
Preservation: concretion
Collected by Dubiel, Good, Parrish in 1968
Collection methods: surface (float),
Primary reference: R. F. Dubiel, S. C. Good, and J. M. Parrish. 1989. Sedimentology and paleontology of the Upper Triassic Chinle Formation, Bedrock, Colorado. The Mountain Geologist 26(4):113-126 [M. Carrano/M. Carrano]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 178452: authorized by Matthew Carrano, entered by Matthew Carrano on 02.05.2016
Creative Commons license: CC BY (attribution)
Taxonomic list
Actinopteri | |
Hemicalypterus sp. Schaeffer 1967 |