UCMP V82374, Airhead West, pterosaur (Jurassic to of the United States)

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

• "green siltstone with thin sandstone stringer"

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 -
Theropoda indet. Marsh 1881 theropod
 Pterosauria -
Pterosauria indet. pterosaur
UCMP 128227, left fourth wing metacarpal
 Loricata -
Crocodylomorpha indet. Hay 1930 crocodilian
 Lepidosauria -
Rhynchocephalia indet. Günther 1867 rhynchocephalian
 Testudinata -
Testudinata indet. Oppel 1811 turtle
Osteichthyes
 Therapsida - Tritylodontidae
Tritylodontidae indet. Cope 1884 mammaliamorph