Masonville locality (Jurassic to of the United States)

Where: Larimer County, Colorado (40.5° N, 105.2° W: paleocoordinates 36.0° N, 51.8° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

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

• high in formation

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by J. Kirklamd & J. Stephenson; reposited in the DMNH

Primary reference: R. T. Bakker. 1990. A new latest Jurassic vertebrate fauna, from the highest levels of the Morrison Formation at Como Bluff, Wyoming, with comments on Morrison biochronology. Part I. Biochronology. Hunteria 2(6):1-3 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 70029: authorized by Matthew Carrano, entered by Matthew Carrano on 14.03.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Saurischia - Camarasauridae
Camarasaurus sp.1 Cope 1877 camarasaurid
 Avetheropoda - Allosauridae
Allosaurus sp.2 Marsh 1877 allosaurid
CPS 99, caudal vertebrae