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Asuncion - Chico - Tenmile, Butte County, California, USA

Group	Asuncion
Formation	Chico
Member	Tenmile
Age:	83.5 - 70.6 Ma Late/Upper Cretaceous
Interval	Early Campanian
Lithology	sandstone
Number of Collections	1
Number of Occurrences	24

Recorded Sample Locations

Location	Region	Stratigraphic Name
CAS Loc. 27838	Butte County, California, USA	Asuncion - Chico - Tenmile

Recorded Fossils

Accepted Name	Type	Hierarchy	Age
Cucullaea youngi species	7	Animalia : Mollusca : Bivalvia : Arcida : Cucullaeidae : Cucullaea : *Cucullaea youngi*	83.5 - 70.6 Ma Late/Upper Cretaceous
Inoceramus sp. genus	6	Animalia : Mollusca : Bivalvia : Myalinida : Inoceramidae : *Inoceramus*	83.5 - 70.6 Ma Late/Upper Cretaceous
Inoceramus chicoensis species	7	Animalia : Mollusca : Bivalvia : Myalinida : Inoceramidae : Inoceramus : *Inoceramus chicoensis*	83.5 - 70.6 Ma Late/Upper Cretaceous
Acila (Truncacila) demessa species	7	Animalia : Mollusca : Bivalvia : Nuculida : Nuculidae : Acila : *Acila (Truncacila) demessa*	83.5 - 70.6 Ma Late/Upper Cretaceous
Popenoella hemphilli species	7	Animalia : Mollusca : Bivalvia : Trigoniida : Steinmanellidae : Popenoella : *Popenoella hemphilli*	83.5 - 70.6 Ma Late/Upper Cretaceous
Tenea inflata species	7	Animalia : Mollusca : Bivalvia : Veneroidei : Arcticidae : Tenea : *Tenea inflata*	83.5 - 70.6 Ma Late/Upper Cretaceous
Trigonocallista sp. genus	6	Animalia : Mollusca : Bivalvia : Venerida : Veneridae : *Trigonocallista*	83.5 - 70.6 Ma Late/Upper Cretaceous
Baculites buttensis species	7	Animalia : Mollusca : Cephalopoda : Ammonitida : Baculitidae : Baculites : *Baculites buttensis*	83.5 - 70.6 Ma Late/Upper Cretaceous
Baculites chicoensis species	7	Animalia : Mollusca : Cephalopoda : Ammonoidea : Baculitidae : Baculites : *Baculites chicoensis*	83.5 - 70.6 Ma Late/Upper Cretaceous
Butticeras studleyi species	7	Animalia : Mollusca : Cephalopoda : Ammonoidea : Brancoceratidae : Butticeras : *Butticeras studleyi*	83.5 - 70.6 Ma Late/Upper Cretaceous
Mortoniceras (Submortoniceras) buttense species	7	Animalia : Mollusca : Cephalopoda : Ammonitida : Collignoniceratidae : Submortoniceras : *Mortoniceras (Submortoniceras) buttense*	83.5 - 70.6 Ma Late/Upper Cretaceous
Mortoniceras (Submortoniceras) gabbi species	7	Animalia : Mollusca : Cephalopoda : Ammonitida : Collignoniceratidae : Submortoniceras : *Mortoniceras (Submortoniceras) gabbi*	83.5 - 70.6 Ma Late/Upper Cretaceous
Mortoniceras (Submortoniceras) pentzanum species	7	Animalia : Mollusca : Cephalopoda : Ammonitida : Collignoniceratidae : Submortoniceras : *Mortoniceras (Submortoniceras) pentzanum*	83.5 - 70.6 Ma Late/Upper Cretaceous
Mortoniceras (Submortoniceras) randalli species	7	Animalia : Mollusca : Cephalopoda : Ammonitida : Collignoniceratidae : Submortoniceras : *Mortoniceras (Submortoniceras) randalli*	83.5 - 70.6 Ma Late/Upper Cretaceous
Submortoniceras chicoense species	7	Animalia : Mollusca : Cephalopoda : Ammonoidea : Collignoniceratidae : Submortoniceras : *Submortoniceras chicoense*	83.5 - 70.6 Ma Late/Upper Cretaceous
Hauericeras mickeyi species	7	Animalia : Mollusca : Cephalopoda : Ammonoidea : Desmoceratidae : Hauericeras : *Hauericeras mickeyi*	83.5 - 70.6 Ma Late/Upper Cretaceous
Oxybeloceras taffi species	7	Animalia : Mollusca : Cephalopoda : Ammonitida : Diplomoceratidae : Oxybeloceras : *Oxybeloceras taffi*	83.5 - 70.6 Ma Late/Upper Cretaceous
Canadoceras sp. genus	6	Animalia : Mollusca : Cephalopoda : Ammonoidea : Pachydiscidae : *Canadoceras*	83.5 - 70.6 Ma Late/Upper Cretaceous
Parapachydiscus bidwelli species	7	Animalia : Mollusca : Cephalopoda : Ammonoidea : Pachydiscidae : Pachydiscus : *Parapachydiscus bidwelli*	83.5 - 70.6 Ma Late/Upper Cretaceous
Biplica obliqua species	7	Animalia : Mollusca : Gastropoda : Cephalaspidea : Ringiculidae : Biplica : *Biplica obliqua*	83.5 - 70.6 Ma Late/Upper Cretaceous
Perissitys sp. genus	6	Animalia : Mollusca : Gastropoda : Neogastropoda : Turbinellidae : *Perissitys*	83.5 - 70.6 Ma Late/Upper Cretaceous
Volutoderma sp. genus	6	Animalia : Mollusca : Gastropoda : Neogastropoda : Pholidotomidae : *Volutoderma*	83.5 - 70.6 Ma Late/Upper Cretaceous
Anchura callosa species	7	Animalia : Mollusca : Gastropoda : Littorinimorpha : Aporrhaidae : Anchura : *Anchura callosa*	83.5 - 70.6 Ma Late/Upper Cretaceous

References

Anderson F. M. (1958) Upper Cretaceous of the Pacific Coast, Geological Society of America Memoir 71, 1-378

Elder W. P., Saul L. R. (1996) Taxonomy and biostratigraphy of Coniacian through Maastrichtian Anchura (Gastropoda; Aporrhaiidae) of the North American Pacific slope, Journal of Paleontology 70 3, 381-399

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!