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Asuncion - Moreno - Volta Sandstone, Contra Costa County, California, USA

Group	Asuncion
Formation	Moreno
Member	Volta Sandstone
Age:	72.1 - 66.0 Ma Late/Upper Cretaceous
Interval	Maastrichtian
Lithology	sandstone
Number of Collections	2
Number of Occurrences	20

Recorded Sample Locations

Location	Region	Stratigraphic Name
CAS 2539	Contra Costa County, California, USA	Asuncion - Moreno - Volta Sandstone
CAS 25707	Contra Costa County, California, USA	Asuncion - Moreno - Volta Sandstone

Recorded Fossils

Accepted Name	Type	Hierarchy	Age
Meekia (Meekia) sella species	7	Animalia : Mollusca : Bivalvia : Cardiida : Tancrediidae : Meekia : *Meekia (Meekia) sella*	72.1 - 66 Ma Late/Upper Cretaceous
Tellina sp. genus	6	Animalia : Mollusca : Bivalvia : Cardiida : Tellinidae : *Tellina*	72.1 - 66 Ma Late/Upper Cretaceous
Mytilus quadratus species	7	Animalia : Mollusca : Bivalvia : Mytilida : Mytilidae : Mytilus : *Mytilus quadratus*	72.1 - 66 Ma Late/Upper Cretaceous
Pharella sp. genus	6	Animalia : Mollusca : Bivalvia : Cardiida : *Pharella*	72.1 - 66 Ma Late/Upper Cretaceous
Cymbophora sp. genus	6	Animalia : Mollusca : Bivalvia : Venerida : Mactridae : *Cymbophora*	72.1 - 66 Ma Late/Upper Cretaceous
Calva peninsularis species	7	Animalia : Mollusca : Bivalvia : Veneroidei : Veneridae : Calva : *Calva peninsularis*	72.1 - 66 Ma Late/Upper Cretaceous
Legumen ooides species	7	Animalia : Mollusca : Bivalvia : Veneroidei : Veneridae : Legumen : *Legumen ooides*	72.1 - 66 Ma Late/Upper Cretaceous
Trigonocallista sp. genus	6	Animalia : Mollusca : Bivalvia : Venerida : Veneridae : *Trigonocallista*	72.1 - 66 Ma Late/Upper Cretaceous
Baculites sp. genus	6	Animalia : Mollusca : Cephalopoda : Ammonoidea : Baculitidae : *Baculites*	72.1 - 66 Ma Late/Upper Cretaceous
Ampullina sp. genus	6	Animalia : Mollusca : Gastropoda : Architaenioglossa : Ampullinidae : *Ampullina*	72.1 - 66 Ma Late/Upper Cretaceous
Biplica obliqua species	7	Animalia : Mollusca : Gastropoda : Cephalaspidea : Ringiculidae : Biplica : *Biplica obliqua*	72.1 - 66 Ma Late/Upper Cretaceous
Cophocara stantoni species	7	Animalia : Mollusca : Gastropoda : Neogastropoda : Tudiclidae : Cophocara : *Cophocara stantoni*	72.1 - 66 Ma Late/Upper Cretaceous
Pugnellus sp. genus	6	Animalia : Mollusca : Gastropoda : Littorinimorpha : Aporrhaidae : *Pugnellus*	72.1 - 66 Ma Late/Upper Cretaceous
Gyrodes sp. genus	6	Animalia : Mollusca : Gastropoda : Littorinimorpha : Naticidae : *Gyrodes*	72.1 - 66 Ma Late/Upper Cretaceous
Gyrodes (Sohlella) expansus species	7	Animalia : Mollusca : Gastropoda : Naticidae : Gyrodes : *Gyrodes (Sohlella) expansus*	72.1 - 66 Ma Late/Upper Cretaceous
Dentalium (Entalis) whiteavesi species	7	Animalia : Mollusca : Scaphopoda : Entalis : *Dentalium (Entalis) whiteavesi*	72.1 - 66 Ma Late/Upper Cretaceous

References

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

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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