Bertha Quarry, Como Bluff (Jurassic to of the United States)

Also known as WY-44

Where: Albany County, Wyoming (41.9° N, 106.0° W: paleocoordinates 37.4° N, 52.1° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Lake Como Member (Morrison Formation), Kimmeridgian to Kimmeridgian (157.3 - 145.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: levee; mudstone

• poorly drained floodplain; overbank, near-channel

Size class: macrofossils

Collection methods: quarrying,

Primary reference: R. T. Bakker. 1998. Dinosaur mid-life crisis: the Jurassic-Cretaceous transition in Wyoming and Colorado. In S. G. Lucas, J. I. Kirkland, and J. W. Estep (eds.), Lower and Middle Cretaceous Terrestrial Ecosystems, New Mexico Museum of Natural History and Science Bulletin 14:67-77 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 55487: authorized by Matthew Carrano, entered by Matthew Carrano on 27.10.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Saurischia - Diplodocidae
"Apatosaurus yahnahpin n. sp." = Brontosaurus yahnahpin2
"Apatosaurus yahnahpin n. sp." = Brontosaurus yahnahpin2 Filla and Redman 1994 diplodocid
PALEON 001 (originally Tate-001) - type
 Avetheropoda - Allosauridae
Allosaurus sp.1 Marsh 1877 allosaurid
 Neornithischia - Dryosauridae
Dryosaurus sp.1 Marsh 1894 bird foot dinosaur
 Loricata - Goniopholididae
Goniopholididae indet.1 Cope 1875 crocodilian