Lakes Quarry 1, Morrison (YPM) (Jurassic to of the United States)

Where: Jefferson County, Colorado (39.7° N, 105.2° W: paleocoordinates 35.1° N, 52.0° W)

• coordinate stated in text

• small collection-level geographic resolution

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

• upper middle part of formation

• bed-level stratigraphic resolution

Environment/lithology: "channel"; sandstone

Size class: macrofossils

Collected by A. Lakes in 1877; reposited in the YPM

Collection methods: quarrying, mechanical,

Primary reference: O. C. Marsh. 1877. Notice of a new and gigantic dinosaur. American Journal of Science and Arts 14:87-88 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 39375: authorized by Matthew Carrano, entered by Matthew Carrano on 27.05.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Saurischia -
Titanosaurus montanus n. sp. Marsh 1877 sauropod
 Avetheropoda - Allosauridae
Allosaurus sp. Marsh 1877 allosaurid
 Crocodylia -
"Diplosaurus felise n. sp." = Diplosaurus felix
"Diplosaurus felise n. sp." = Diplosaurus felix Marsh 1877 crocodilian