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Chico - Ten Mile, Butte County, California, USA

Formation	Chico
Member	Ten Mile
Age:	83.5 - 70.6 Ma Late/Upper Cretaceous
Interval	Early Campanian
Lithology	sandstone
Number of Collections	6
Number of Occurrences	17

Recorded Sample Locations

Location	Region	Stratigraphic Name
Chico Creek [Chico Formation]	Butte County, California, USA	Chico - Ten Mile
Asteroidea	Butte County, California, USA	Chico - Ten Mile
LACMIP 23639 - Ten Mile Mbr	Butte County, California, USA	Chico - Ten Mile

Associated Units

Stratigraphic Name	Age	Lithology	Occurrence Records
Chico	83.5 - 66.0 Ma Late/Upper Cretaceous	siliciclastic, sandstone, conglomerate/"siliciclastic"	68
Chico - Musty Buck	86.3 - 83.6 Ma Late/Upper Cretaceous	sandstone	2

Recorded Fossils

Accepted Name	Type	Hierarchy	Age
Rhectomyax undulatus species	7	*Rhectomyax undulatus*	83.5 - 70.6 Ma Late/Upper Cretaceous
Chondrichthyes class	3	Animalia : Chordata : Chondrichthyes	83.6 - 72.1 Ma Late/Upper Cretaceous
Scleractinia order	4	Animalia : Cnidaria : Anthozoa : Scleractinia	83.6 - 72.1 Ma Late/Upper Cretaceous
Asteroidea class	3	Animalia : Echinodermata : Asteroidea	83.6 - 72.1 Ma Late/Upper Cretaceous
Pegaster stichos species	7	Animalia : Echinodermata : Asteroidea : Forcipulatida : Stichasteridae : Pegaster : *Pegaster stichos*	83.6 - 72.1 Ma Late/Upper Cretaceous
Mediaster hayi species	7	Animalia : Echinodermata : Asteroidea : Valvatida : Goniasteridae : Mediaster : *Mediaster hayi*	83.6 - 72.1 Ma Late/Upper Cretaceous
Crinoidea class	3	Animalia : Echinodermata : Crinoidea	83.6 - 72.1 Ma Late/Upper Cretaceous
Bivalvia class	3	Animalia : Mollusca : Bivalvia	83.6 - 72.1 Ma Late/Upper Cretaceous
Ammonoidea order	4	Animalia : Mollusca : Cephalopoda : Ammonoidea	83.6 - 72.1 Ma Late/Upper Cretaceous
Gastropoda class	3	Animalia : Mollusca : Gastropoda	83.6 - 72.1 Ma Late/Upper Cretaceous
Pentzia hilgardi species	7	Animalia : Mollusca : Gastropoda : Neogastropoda : Melongenidae : Pentzia : *Pentzia hilgardi*	83.6 - 72.1 Ma Late/Upper Cretaceous
Perissitys sp. genus	6	Animalia : Mollusca : Gastropoda : Neogastropoda : Turbinellidae : *Perissitys*	83.5 - 70.6 Ma Late/Upper Cretaceous
Gyrodes (Sohlella) canadensis species	7	Animalia : Mollusca : Gastropoda : Naticidae : Gyrodes : *Gyrodes (Sohlella) canadensis*	83.5 - 70.6 Ma Late/Upper Cretaceous
Paxitropis dicriota species	7	Animalia : Mollusca : Gastropoda : Littorinimorpha : Capulidae : Paxitropis : *Paxitropis dicriota*	83.6 - 72.1 Ma Late/Upper Cretaceous
Scaphopoda class	3	Animalia : Mollusca : Scaphopoda	83.6 - 72.1 Ma Late/Upper Cretaceous

References

Blake D. B. (1986) Some new post-Paleozoic sea stars (Asteroidea: Echinodermata) and comments on taxon endurance, Journal of Paleontology 60 5, 1103-1119

Popenoe W. P., Saul L. R. (1987) Evolution and classification of the Late Cretaceous-Early Tertiary gastropod Perissitys, Contributions in Science 380, 1-37

Popenoe W. P., Saul L. R., et al (1987) Gyrodiform gastropods from the Pacific coast Cretaceous and Paleocene, Journal of Paleontology 61 1, 70-100

Saul L. R. (1988) Rhectomyax Stewart, 1930 (Bivalvia: Kelliidae); a familial reassignment, Journal of Paleontology 62 3, 481

Blake D. B., Peterson D.S. (1993) An unusual new asteriid (Echinodermata: Asteroidea) from the Cretaceous of California, Journal of Paleontology 67 4, 586-589

Squires R. L., Saul L. R. (2003) New late Cretaceous (Campanian and Maastrichtian) marine gastropods from California, Journal of Paleontology 77 1, 50-63 doi:10.1017/S0022336000043419

Squires R. L., Saul L. R. (2005) New Late Cretaceous (Santonian and Campanian) gastropods from California and Baja California, Mexico, The Nautilus 119 4, 133-148

Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!

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