Also known as blue layer, Silty Facies
Where: Coconino County, Arizona (35.9° N, 111.4° W: paleocoordinates 19.5° N, 50.1° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Kayenta Formation (Glen Canyon Group), Sinemurian to Sinemurian (199.3 - 182.7 Ma)
• "Near the base of the Kayenta Formation"
• bed-level stratigraphic resolution
Environment/lithology: terrestrial; green siltstone and sandstone
Size class: macrofossils
Collected by J. C. Clark in 1981; reposited in the UCMP
Collection methods: surface (float), sieve
Primary reference: K. Padian. 1984. Pterosaur remains from the Kayenta Formation (?Early Jurassic) of Arizona . Palaeontology 27(2):407-413 [M. Carrano/M. Carrano/M. Uhen]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 91553: authorized by Richard Butler, entered by Richard Butler on 01.10.2009
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
Theropoda indet. Marsh 1881 theropod | |
| |
Crocodylomorpha indet. Hay 1930 crocodilian | |
Rhynchocephalia indet. Günther 1867 rhynchocephalian | |
Testudinata indet. Oppel 1811 turtle | |
Osteichthyes | |
Tritylodontidae indet. Cope 1884 mammaliamorph |