Mackay Creek, near Walsh (Cretaceous of Canada)

Where: Alberta, Canada (49.9° N, 110.1° W: paleocoordinates 56.9° N, 74.6° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Belly River Group, Campanian (83.6 - 72.1 Ma)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size classes: macrofossils, mesofossils

Collected by J. Macoun in 1880

Primary reference: L. M. Lambe. 1902. New genera and species from the Belly River Series (mid-Cretaceous). Geological Survey of Canada Contributions to Canadian Palaeontology 3(2):25-81 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 150749: authorized by Matthew Carrano, entered by Matthew Carrano on 14.09.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

 Testudines - Nanhsiungchelyidae
"Adocus variolosus" = Basilemys variolosa
"Adocus variolosus" = Basilemys variolosa Cope 1876 turtle
 Testudines - Pantrionychidae
Trionyx vagans Cope 1874 turtle
"neurals and fragments of costals"
 Avetheropoda - Ornithomimidae
"Ornithomimus altus" = Struthiomimus altus
"Ornithomimus altus" = Struthiomimus altus Lambe 1902 ornithomimid
pedal phalanx
 Loricata -
Crocodilus humilis Leidy 1856 crocodilian
 Choristodera -
Champsosaurus annectens Cope 1876 choristodere