Quarry 1A, Como Bluff (YPM) (Jurassic to of the United States)

Also known as Big Canyon Quarry, WY-27

Where: Carbon County, Wyoming (41.9° N, 106.1° W: paleocoordinates 37.5° N, 52.9° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Brushy Basin Member (Morrison Formation), Kimmeridgian to Kimmeridgian (157.3 - 145.0 Ma)

• low in formation

• bed-level stratigraphic resolution

Environment/lithology: "channel"; medium-grained sandstone

Size class: macrofossils

Collected by Lakes; reposited in the YPM

Collection methods: quarrying, mechanical,

Primary reference: O. C. Marsh. 1879. Notice of new Jurassic reptiles. American Journal of Science and Arts 18:501-505 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 39337: authorized by Matthew Carrano, entered by Matthew Carrano on 26.05.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

 Saurischia - Diplodocidae
Diplodocinae indet.1 diplodocine
Diplodocus or Barosaurus
 Saurischia -
Camarasaurus sp.2 Cope 1877 sauropod
 Avetheropoda - Allosauridae
"Antrodemus sp." = Allosaurus2, Camptonotus amplus n. sp.
"Antrodemus sp." = Allosaurus2 Marsh 1877 allosaurid
Camptonotus amplus n. sp. Marsh 1879 allosaurid
YPM 1879
 Neornithischia -
Othnielia sp.1 Galton 1977 bird foot dinosaur