Also known as Lake Diefenbaker
Where: Saskatchewan, Canada (50.5° N, 107.8° W: paleocoordinates 57.0° N, 72.2° W)
• coordinate stated in text
• small collection-level geographic resolution
When: Judith River Formation (Montana Group), Middle Campanian to Middle Campanian (83.5 - 70.6 Ma)
• "at the base of exposures...approximately 3 m in thickness"
• group of beds-level stratigraphic resolution
Environment/lithology: coastal; poorly lithified, gray sandstone
Size class: macrofossils
Collected by Norm Yurchyshyn and SMNH in 1975 or 1976 (Yurchyshyn), 1990 (SMNH)
Primary reference: T. T. Tokaryk. 1992. Baptornis sp. (Aves: Hesperornithiformes) from the Judith River Formation (Campanian) of Saskatchewan, Canada. Journal of Paleontology 66(6):1010-1012 [J. Alroy/J. Alroy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 75030: authorized by John Alroy, entered by John Alroy on 15.09.2007
Creative Commons license: CC BY (attribution)
Taxonomic list
Actinopteri | |
Reptilia | |
Aspideretes sp. Hay 1904 softshell turtle | |
"Chelonia indet." = Testudines
"Chelonia indet." = Testudines Batsch 1788 turtle | |
| |
Albertosaurus sp. Osborn 1905 Alberta lizard | |
Aves | |
| |
Reptilia | |
Lambeosaurinae indet. Parks 1923 lambeosaurine | |
Chasmosaurinae indet. Lambe 1915 ceratopsid | |
| |
Champsosaurus sp. Cope 1876 choristodere | |
| |
Chondrichthyes | |
| |
Scapanorhynchus sp. Woodward 1889 goblin shark | |
Myledaphus bipartitus Cope 1876 guitarfish |