Also known as DUPLICATE REF 3312 or 3313 or 3314
Where: Saskatchewan, Canada (49.1° N, 109.5° W: paleocoordinates 56.1° N, 74.9° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Coal Ridge Member (Judith River Formation), Middle Campanian to Middle Campanian (83.5 - 70.6 Ma)
• Judithian based on fauna
•
•Rogers et al. 2016: This mid-Judith discontinuity defines the boundary between the new McClelland Ferry and overlying Coal Ridge Members of the Judith River Formation. The shallow marine sandstones that form the backstepping sequences represent the leading edge of the Bearpaw transgression in this region and are formalized as the new Woodhawk Member of the Judith River Formation in a third reference section. New 40Ar/39Ar ages indicate (1) that the mid-Judith discontinuity formed ∼76.2 Ma
• bed-level stratigraphic resolution
Environment/lithology: terrestrial; lithology not reported
Size classes: macrofossils, mesofossils
Primary reference: J. E. Storer. 1993. Additions to the mammalian paleofauna of Saskatchewan. Modern Geology 18(4):475-487 [J. Alroy/J. Alroy/J. Alroy]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 14494: authorized by John Alroy, entered by John Alroy on 07.06.1994, edited by Matthew Carrano
Creative Commons license: CC BY (attribution)
Taxonomic list
see also Storer 1995a
Chondrichthyes | |
Myledaphus sp. Cope 1876 guitarfish | |
Cretorectolobus sp. Case 1978 wobbegong | |
Osteichthyes | |
Acipenseriformes indet. Berg 1940 ray-finned fish | |
Amphibia | |
Anura indet. frog | |
Discoglossidae indet. Günther 1859 painted frog | |
Opisthotriton sp. Auffenberg 1961 salamander | |
Scapherpeton sp. Cope 1876 salamander | |
| |
Mammalia | |
Cimolomys sp. Marsh 1889 multituberculate | |
Alphadon cf. halleyi Sahni 1972 metatherian | |
Reptilia | |
Baenidae indet. Cope 1882 turtle
Boremys sp. Lambe 1906 turtle | |
Chelydridae indet. Swainson 1839 turtle | |
| |
Basilemys sp. Hay 1902 turtle | |
| |
Brachychampsa sp. Gilmore 1911 crocodilian | |
Thescelosauridae indet. Sternberg 1937 ornithischian | |
Edmontonia sp. Sternberg 1928 ankylosaur
Panoplosaurus sp. Lambe 1919 ankylosaur | |
Ankylosauridae indet. Brown 1908 ankylosaurid | |
Stegoceras sp. Lambe 1902 ornithischian | |
Ceratopsidae indet. Marsh 1888 ceratopsid | |
Hadrosauridae indet. Cope 1869 hadrosaurid | |
| |
Troodon sp. Leidy 1856 maniraptoran | |
Albertosaurus sp. Osborn 1905 Alberta lizard | |
Champsosaurus sp. Cope 1876 choristodere | |
Actinopteri | |
Lepisosteus sp. Agassiz 1843 gar | |
Amia sp. Linnaeus 1766 bowfin | |
Esocidae indet. Cuvier 1817 | |
Paralbula sp. Blake 1940 | |
Coriops sp. Estes 1969 bonefish |