14 miles below Steveville (30 ft level) (Cretaceous of Canada)

Also known as C. kaiseni type, AMNH, 12 miles below

Where: Alberta, Canada (50.6° N, 111.6° W: paleocoordinates 58.0° N, 76.3° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

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

• formation-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by B. Brown & Kaisen in 1913; reposited in the AMNH

Collection methods: quarrying, mechanical,

Primary reference: B. Brown. 1933. A new longhorned Belly River ceratopsian. American Museum Novitates 669:1-3 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 35379: authorized by Matthew Carrano, entered by Matthew Carrano on 08.12.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Ornithischia - Ankylosauridae
Euoplocephalus sp. Lambe 1910 ankylosaurid
AMNH 5405
 Ornithischia - Ceratopsidae
Chasmosaurus kaiseni n. sp. Brown 1933 ceratopsid
AMNH 5401; unofficially listed as Centrosaurus by museum before publication