John Martin Reservoir, Site 4 tracksite (Cretaceous of the United States)

Where: Bent County, Colorado (38.1° N, 103.0° W: paleocoordinates 37.1° N, 60.8° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Pajarito Formation (Dakota Group), Albian (113.0 - 100.5 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: delta plain; sandstone

• sandstone and soft mudstone

Size class: macrofossils

Preservation: cast, trace

Collected by Kukihara & Lockley in 2004–2005

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

Primary reference: R. Kukihara and M. G. Lockley. 2012. Fossil footprints from the Dakota Group (Cretaceous) John Martin Reservoir, Bent County, Colorado: New insights into the paleoecology of the Dinosaur Freeway. Cretaceous Research 33:165-182 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 154194: authorized by Matthew Carrano, entered by Matthew Carrano on 31.01.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Plantae indet. Haeckel 1866
Reptilia
 Ornithischia - Iguanodontipodidae
Caririchnium sp. Leonardi 1984 ornithopod
 Crocodylia -
Crocodylia indet. Owen 1842 crocodilian