2 below mouth, Sand Creek (150 ft level) [AMNH] (Cretaceous of Canada)

Also known as Little Sandhill Creek, right bank

Where: Alberta, Canada (50.7° N, 111.5° W: paleocoordinates 58.0° N, 76.1° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Dinosaur Park Formation (Belly River Group), Late/Upper Campanian (83.5 - 70.6 Ma)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by B. Brown & P. Kaisen in 1914; reposited in the AMNH, YPM

Collection methods: quarrying, mechanical,

Primary reference: R. S. Lull. 1933. A revision of the Ceratopsia or horned dinosaurs. Memoirs of the Peabody Museum of Natural History 3(3):1-175 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 191270: authorized by Matthew Carrano, entered by Matthew Carrano on 19.01.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

 Neornithischia - Ceratopsidae
"Monoclonius flexus" = Centrosaurus apertus
"Monoclonius flexus" = Centrosaurus apertus Lambe 1905 ceratopsid
AMNH 5341/YPM 2015, skull and skeleton