Freeze Out Mtns. Kansas Univ. Expedition (Jurassic to of the United States)

Also known as Freezeout Hills Quarry

Where: Converse County, Wyoming (42.0° N, 106.4° W: paleocoordinates 37.6° N, 52.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

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

• referred to in text as "Atlantosaurus Beds" and "Como Beds", and as Lower Cretaceous

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Primary reference: S. W. Williston. 1898. The sacrum of Morosaurus. Kansas University Quarterly 7:173-175 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 13214: authorized by Matthew Carrano, entered by Matthew Carrano on 29.01.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Saurischia - Camarasauridae
"Morosaurus grandis" = Camarasaurus grandis
"Morosaurus grandis" = Camarasaurus grandis Marsh 1877 camarasaurid
KUVP 1354
 Saurischia - Diplodocidae
Diplodocus sp. Marsh 1878 diplodocine
 Ornithischia - Stegosauridae
Stegosaurus sp. Marsh 1877 ornithischian
 Theropoda -
"Allosaurus fragilis" = Allosaurus fragilis, "Antrodemus valens" = Allosaurus fragilis, "Creosaurus atrox" = Allosaurus fragilis
"Allosaurus fragilis" = Allosaurus fragilis Marsh 1877 allosauroid
"Antrodemus valens" = Allosaurus fragilis Marsh 1877 allosauroid
"Creosaurus atrox" = Allosaurus fragilis Marsh 1877 allosauroid