Budden Canyon Formation

The Budden Canyon Formation is the name of a sedimentary rock formation in California of Cretaceous (Berriasian-Turonian) age.^[1]

Budden Canyon Formation
Stratigraphic range: Berriasian-Turonian ~145–90 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Type	Geological formation
Unit of	Great Valley Group
Sub-units	Bald Hills, Chickabolly, Gas Point, Huling Sandstone & Ogo Members
Lithology
Primary	Mudstone, sandstone
Other	Conglomerate, limestone
Location
Coordinates	40.4°N 122.5°W / 40.4; -122.5
Approximate paleocoordinates	40.5°N 78.5°W / 40.5; -78.5
Region	California
Country	United States
Type section
Named for	Budden Canyon
Budden Canyon Formation (the United States) Show map of the United States Budden Canyon Formation (California) Show map of California

The formation consists of more than 20,000 feet of clastic sediments of non-marine (alluvial fan), shallow marine, slope and basin floor fan turbidites.^[2]

Fossil content

The formation is very fossiliferous with common macro-fossils, such as ammonites, gastropods, and bivalves found both in concretions and bedding planes, along with common petrified wood, woody material, and leaf and seed fossils. In addition to these are marine microfossils, including foraminifera and microgastropods. There are also rare vertebrate remains, including fish, pterosaurs, a dinosaur and marine turtles.

See also

• List of dinosaur-bearing rock formations
  • List of stratigraphic units with indeterminate dinosaur fossils