Book Cliffs, hadrosaur locality (Cretaceous of the United States)

Where: Emery County, Utah (39.1° N, 109.4° W: paleocoordinates 46.6° N, 79.8° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Didymoceras nebrascense ammonoid zone, Nelsen Formation, Late/Upper Campanian (83.5 - 70.6 Ma)

• Palisade coal zone, equivalent to the Didymoceras nebrascense ammonite biozone, lower part of formation

• bed-level stratigraphic resolution

Environment/lithology: fine channel fill; fine, yellow sandstone and carbonaceous siltstone

• "a meandering distributary channel situated within the distal portion of a coastal floodplain."
• "a 1.5 meter thick, coarsening-upward succession of buff-colored, very fine- to fine-grained sandstone interbedded with carbonaceous siltstone and mudstone...Primary sedimentary structures include small-scale trough cross-stratification and wavy laminae; however, some of the original fabric has been altered by biogenic reworking."

Size class: macrofossils

Preservation: trace, soft parts

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

Primary reference: D. K. Smith. 1997. Museum of Earth Science, Brigham Young University. In P. J. Currie & K. Padian (ed.), Encyclopedia of Dinosaurs 457-458 [M. Carrano/M. Carrano]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 49619: authorized by Matthew Carrano, entered by Matthew Carrano on 20.04.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Plantae indet.1 Haeckel 1866
"woody debris"
Reptilia
 Ornithischia - Hadrosauridae
Hadrosaurinae indet.2 Lambe 1918 hadrosaurine
"similar to the gryposaurs"; with skin impressions
 Life -
Teredolites clavatus1 Leymerie 1842