Cedar District Formation

The Cedar District Formation is a geologic formation exposed on Vancouver Island, the Gulf Islands of British Columbia and San Juan Islands of Washington (state). It preserves fossils dating back to the Campanian Epoch of the Cretaceous period. It dates to the lower mid-Campanian.[1]

Cedar District Formation Stratigraphic range: Campanian ~80 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Type	Formation
Unit of	Nanaimo Group
Underlies	Denman/De Courcy Formation
Overlies	Protection Formation
Area	Southeastern Vancouver Island, Gulf Islands, San Juan Islands
Location
Region	British Columbia, Washington (state)
Country	Canada, United States
Type section
Named for	Cedar District on Vancouver Island

Paleobiology

Flora

• Suciacarpa starrii[2]

Fauna

Partial left femur of indeterminate Theropod

• Baculites rex[3]
• Baculites anceps[3]
• Baculites occidentalis[3]
• Baculites inornatus[1][3]
• Anapachydiscus nelchinensis[3]
• Metaplacenticeras sp.[3]
• Canadoceras newberryanum[3]
• Pachydiscus neevesi[3]
• Hoplitoplacenticeras vancouverense[1][3]
• Gaudryceras denmanense[3]
• Neophylloceras sp.[3]
• Condonella suciensis [4]
• Ornithomimidae indet.[1]
• Theropoda indet. (possibly Tyrannosauridae)[1]

See also

• List of fossiliferous stratigraphic units in Washington (state)
• Paleontology in Washington (state)

References

1. Peecook, B.; Sidor, C. (2015). "The First Dinosaur from Washington State and a Review of Pacific Coast Dinosaurs from North America" (PDF). PLoS ONE: 1–15. doi:10.1371/journal.pone.0127792.g001.
2. Atkinson, B. (2016). "Early diverging asterids of the Late Cretaceous: Suciacarpa starrii gen. et sp. nov. and the initial radiation of Cornales". Botany. 94: 759–771. doi:10.1139/cjb-2016-0035.
3. Ward, P (1978). "Baculitids from the Santonian-Maestrichtian Nanaimo Group, British Columbia, Canada and Washington State, USA". Journal of Paleontology. 52 (5): 1143–1154. JSTOR 1303860.
4. Roth, B. (2000). "Upper Cretaceous (Campanian) land snails (Gastropoda: Stylommatophora) from Washington and California". Journal of Molluscan Studies. 66 (3): 373–381. doi:10.1093/mollus/66.3.373.

• Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 31 July 2014. Retrieved 8 July 2014.