| Northumberland Formation | |
|---|---|
| Stratigraphic range: Late Cretaceous, ? | |
| Type | Geological formation |
| Unit of | Nanaimo Group |
| Underlies | Spray Formation |
| Location | |
| Coordinates | 49°36′N 124°42′W / 49.6°N 124.7°W |
| Approximate paleocoordinates | 56°06′N 94°24′W / 56.1°N 94.4°W |
| Country |  Canada |
The Northumberland Formation is a Late Cretaceous (?Campanian-?Maastrichtian)-aged geologic formation in Canada. It belongs to the larger Nanaimo Group. Indeterminate bird and pterosaur fossils have been recovered from the formation,[1] as well as a potential gladius of Eromangateuthis.[2] An extensive diversity of shark teeth is known from the formation; many appear to be closely allied with modern deep-water shark taxa, suggesting a deep-water environment for the formation.[3] The most well-known exposures of the formation are on Hornby Island.
- ^ Martin-Silverstone, Elizabeth; Witton, Mark P.; Arbour, Victoria Megan; Currie, Philip J. (2016). "A small azhdarchoid pterosaur from the latest Cretaceous, the age of flying giants". Royal Society Open Science. 3 (8): 160333. Bibcode:2016RSOS....360333M. doi:10.1098/rsos.160333. PMC 5108964. PMID 27853614.
- ^ Fuchs; Beard; Tanabe; Ross, Dirk; G.; K.; R. (2007-08-17). "Coleoid cephalopods from the Late Cretaceous north eastern Pacific" (PDF). Seventh International Symposium 'Cephalopods - Present & Past'.: 131.
{{cite journal}}: CS1 maint: multiple names: authors list (link) - ^ Cappetta, Henri; Morrison, Kurt; Adnet, Sylvain (2021-08-03). "A shark fauna from the Campanian of Hornby Island, British Columbia, Canada: an insight into the diversity of Cretaceous deep-water assemblages". Historical Biology. 33 (8): 1121–1182. Bibcode:2021HBio...33.1121C. doi:10.1080/08912963.2019.1681421. ISSN 0891-2963. S2CID 212878837.