Gryposaurus monumentensis type, GS-ENM (PROXY) (Cretaceous of the United States)

Where: Garfield County, Utah (37.6° N, 111.9° W: paleocoordinates 45.6° N, 83.0° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Kaiparowits Formation, Late/Upper Campanian (83.5 - 70.6 Ma)

• middle part of formation

• bed-level stratigraphic resolution

Environment/lithology: channel lag; muddy sandstone

• "point bar deposit"
• "muddy sand"

Size class: macrofossils

Collected in 2004

Collection methods: mechanical,

Primary reference: A. L. Titus, J. D. Powell, E. M. Roberts, S. D. Sampson, S. L. Pollock, J. I. Kirkland, and L. B. Albright. 2005. Late Cretaceous stratigraphy, depositional environments, and macrovertebrate paleontology of the Kaiparowits Plateau, Grand Staircase–Escalante National Monument, Utah. In J. Pederson & C. M. Dehler (ed.), Interior Western United States. Geological Society of America Field Guide 6:101-128 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 75467: authorized by Matthew Carrano, entered by Matthew Carrano on 10.10.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Ornithischia - Hadrosauridae
Gryposaurus monumentensis n. sp. Gates and Sampson 2007 hadrosaurine
RAM 6797