Natural Fort (UCM Loc. 78193) (Cretaceous of the United States)

Also known as Loc. 1

Where: Weld County, Colorado (41.0° N, 104.9° W: paleocoordinates 47.6° N, 80.7° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Laramie Formation, Lancian (70.6 - 66.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: "channel"; sandstone

• "extensive soft-sediment deformation within a sandy channel fill"

Size class: mesofossils

Reposited in the UCM

Collection methods: surface (float), surface (in situ),

• "Microvertebrate fossils have been found in situ and as float at the base of the outcrop; screenwashing has not yet been attempted"

Primary reference: K. Carpenter and D. B. Young. 2002. Late Cretaceous dinosaurs from the Denver Basin, Colorado. Rocky Mountain Geology 37(2):237-254 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 96082: authorized by John Alroy, entered by John Alroy on 14.05.2010, edited by Roger Benson, Patricia Holroyd and Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Theriamorpha - Pediomyidae
Protolambda hatcheri3 Osborn 1898 metatherian
Reptilia
 Testudinata -
Compsemys victa1 Leidy 1856 turtle
 Testudinata - Baenidae
"Peckemys brinkman" = Cedrobaena brinkman2
"Peckemys brinkman" = Cedrobaena brinkman2 Lyson and Joyce 2009 turtle
UCM 49318 (partial skull)
 Ornithischia - Hadrosauridae
Hadrosauridae indet. Cope 1869 hadrosaurid
UCM 42326, tooth
 Theropoda - Dromaeosauridae
Dromaeosaurus sp. Matthew and Brown 1922 maniraptoran
UCM 42323, tooth