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Pancho Rico, California, USA

Formation	Pancho Rico
Age:	5.33 - 3.60 Ma Neogene
Interval	Early Pliocene
Lithology	sandstone, mudstone
Number of Collections	45
Number of Occurrences	539

Recorded Sample Locations

Location	Region	Stratigraphic Name
Salinas Valley [Pancho Rico Fm]	Monterey County, California, USA	Pancho Rico
USGS Cenozoic M981 Reliz Canyon	Monterey County, California, USA	Pancho Rico
USGS Cenozoic M918 Pine Canyon	Monterey County, California, USA	Pancho Rico
USGS Cenozoic M1060 Cosio Knob Quad.	Monterey County, California, USA	Pancho Rico
USGS Cenozoic M1067 Mission Creek	Monterey County, California, USA	Pancho Rico
USGS Cenozoic M1455 San Antonio River Road	Monterey County, California, USA	Pancho Rico
USGS Cenozoic M982 Wunpost	Monterey County, California, USA	Pancho Rico
USGS Cenozoic M1676 Salinas River	Monterey County, California, USA	Pancho Rico
UCMP A3296 Kemp Canyon	Fresno County, California, USA	Pancho Rico
USGS Cenozoic M2047 San Luis Obispo	San Luis Obispo County, California, USA	Pancho Rico
USGS Cenozoic M2050 San Luis Obispo	San Luis Obispo County, California, USA	Pancho Rico
USGS Cenozoic M2280 Greenfield	San Benito County, California, USA	Pancho Rico
UCMP A906 Wildhorse Canyon	Monterey County, California, USA	Pancho Rico
USGS Cenozoic M913 Wildhorse Canyon	Monterey County, California, USA	Pancho Rico
USGS Cenozoic M903 San Lucas Quad	Monterey County, California, USA	Pancho Rico
USGS Cenozoic M2278 San Lorenzo Creek	Monterey County, California, USA	Pancho Rico
USGS Cenozoic M996 Mooney Canyon	Monterey County, California, USA	Pancho Rico
USGS Cenozoic M2282 Lynch Canyon	Monterey County, California, USA	Pancho Rico
USGS Cenozoic M975 San Ardo	Monterey County, California, USA	Pancho Rico
USGS Cenozoic M977 Pancho Rico Creek	Monterey County, California, USA	Pancho Rico
USGS Cenozoic M979 Pancho Rico Creek	Monterey County, California, USA	Pancho Rico
UCMP A3425 Sargent Canyon	Monterey County, California, USA	Pancho Rico
USGS Cenozoic M1935 Walker Canyon	Monterey County, California, USA	Pancho Rico
USGS Cenozoic M1930 Indian Valley	Monterey County, California, USA	Pancho Rico
USGS Cenozoic M1966 Powell Canyon	Monterey County, California, USA	Pancho Rico
USGS Cenozoic M1967 Powell Canyon	Monterey County, California, USA	Pancho Rico
USGS Cenozoic M1969 Vineyard Canyon	Monterey County, California, USA	Pancho Rico
UCMP 3895 Hog Canyon	Monterey County, California, USA	Pancho Rico
A3241 Peachtree Valley	Monterey County, California, USA	Pancho Rico
USGS Cenozoic M1933 Valleton Quad.	Monterey County, California, USA	Pancho Rico
USGS Cenozoic M1341 Wildhorse Canyon	Monterey County, California, USA	Pancho Rico
A3161 Bittersweet-King Road	San Benito County, California, USA	Pancho Rico
B4926 Mission Creek	Monterey County, California, USA	Pancho Rico
C1001 Long Valley	Monterey County, California, USA	Pancho Rico
A911 Long Valley	Monterey County, California, USA	Pancho Rico
9754 Long Valley	Monterey County, California, USA	Pancho Rico
A4946 Long Valley	Monterey County, California, USA	Pancho Rico
USGS Cenozoic M1066 Mission Creek	Monterey County, California, USA	Pancho Rico

Associated Units

Stratigraphic Name	Age	Lithology	Occurrence Records
Santa Margarita	11.6 - 7.25 Ma Miocene		17

Recorded Fossils

Accepted Name	Type	Hierarchy	Age
Balanus sp. genus	6	Animalia : Arthropoda : Maxillopoda : Sessilia : Balanidae : *Balanus*	23.03 - 5.333 Ma Miocene
Tamiosoma gregaria species	7	Animalia : Arthropoda : Maxillopoda : Sessilia : Balanidae : Tamiosoma : *Tamiosoma gregaria*	5.333 - 3.6 Ma Neogene
Discinisca sp. genus	6	Animalia : Brachiopoda : Lingulata : Lingulida : Discinidae : *Discinisca*	23.03 - 5.333 Ma Miocene
Terebratalia sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Terebratulida : Terebrataliidae : *Terebratalia*	23.03 - 5.333 Ma Miocene
Dendraster sp. genus	6	Animalia : Echinodermata : Echinoidea : Clypeasteroida : Dendrasteridae : *Dendraster*	23.03 - 5.333 Ma Miocene
Astrodapsis sp. genus	6	Animalia : Echinodermata : Echinoidea : Clypeasteroida : Echinarachniidae : *Astrodapsis*	23.03 - 5.333 Ma Miocene
Astrodapsis arnoldi species	7	Animalia : Echinodermata : Echinoidea : Clypeasteroida : Echinarachniidae : Astrodapsis : *Astrodapsis arnoldi*	23.03 - 5.333 Ma Miocene
Astrodapsis arnoldi crassus subspecies	7.3	Animalia : Echinodermata : Echinoidea : Clypeasteroida : Echinarachniidae : Astrodapsis : Astrodapsis arnoldi : *Astrodapsis arnoldi crassus*	23.03 - 5.333 Ma Miocene
Astrodapsis arnoldi spatiosus subspecies	7.3	Animalia : Echinodermata : Echinoidea : Clypeasteroida : Echinarachniidae : Astrodapsis : Astrodapsis arnoldi : *Astrodapsis arnoldi spatiosus*	23.03 - 5.333 Ma Miocene
Astrodapsis fernandoensis species	7	Animalia : Echinodermata : Echinoidea : Clypeasteroida : Echinarachniidae : Astrodapsis : *Astrodapsis fernandoensis*	23.03 - 5.333 Ma Miocene
Astrodapsis salinasensis species	7	Animalia : Echinodermata : Echinoidea : Clypeasteroida : Echinarachniidae : Astrodapsis : *Astrodapsis salinasensis*	23.03 - 5.333 Ma Miocene
Anadara sp. genus	6	Animalia : Mollusca : Bivalvia : Arcida : Arcidae : *Anadara*	23.03 - 5.333 Ma Miocene
Anadara (Anadara) trilineata species	7	Animalia : Mollusca : Bivalvia : Arcida : Arcidae : Anadara : *Anadara (Anadara) trilineata*	23.03 - 5.333 Ma Miocene
Arca sp. genus	6	Animalia : Mollusca : Bivalvia : Arcida : Arcidae : *Arca*	23.03 - 5.333 Ma Miocene
Glycymeris sp. genus	6	Animalia : Mollusca : Bivalvia : Arcida : Glycymerididae : *Glycymeris*	23.03 - 5.333 Ma Miocene
Clinocardium sp. genus	6	Animalia : Mollusca : Bivalvia : Cardiida : Cardiidae : *Clinocardium*	23.03 - 5.333 Ma Miocene
Trachycardium sp. genus	6	Animalia : Mollusca : Bivalvia : Cardiida : Cardiidae : *Trachycardium*	23.03 - 5.333 Ma Miocene
Trachycardium (Dallocardia) quadragenarium species	7	Animalia : Mollusca : Bivalvia : Cardiida : Cardiidae : Dallocardia : *Trachycardium (Dallocardia) quadragenarium*	23.03 - 5.333 Ma Miocene
Nuttallia nuttallii species	7	Animalia : Mollusca : Bivalvia : Cardiida : Psammobiidae : Nuttallia : *Nuttallia nuttallii*	23.03 - 5.333 Ma Miocene
Nuttallia salina species	7	Animalia : Mollusca : Bivalvia : Cardiida : Psammobiidae : Nuttallia : *Nuttallia salina*	23.03 - 5.333 Ma Miocene
Cumingia californica species	7	Animalia : Mollusca : Bivalvia : Cardiida : Semelidae : Cumingia : *Cumingia californica*	23.03 - 5.333 Ma Miocene
Macoma sp. genus	6	Animalia : Mollusca : Bivalvia : Cardiida : Tellinidae : *Macoma*	23.03 - 5.333 Ma Miocene
Macoma (Macoma) brota species	7	Animalia : Mollusca : Bivalvia : Cardiida : Tellinidae : Macoma : *Macoma (Macoma) brota*	23.03 - 5.333 Ma Miocene
Macoma (Psammacoma) arctata species	7	Animalia : Mollusca : Bivalvia : Cardiida : Tellinidae : Psammacoma : *Macoma (Psammacoma) arctata*	23.03 - 5.333 Ma Miocene
Macoma (Rexithaerus) indentata species	7	Animalia : Mollusca : Bivalvia : Cardiida : Tellinidae : Macoma : *Macoma (Rexithaerus) indentata*	23.03 - 5.333 Ma Miocene
Macoma (Rexithaerus) secta species	7	Animalia : Mollusca : Bivalvia : Cardiida : Tellinidae : Macoma : *Macoma (Rexithaerus) secta*	23.03 - 5.333 Ma Miocene
Macoma nasuta species	7	Animalia : Mollusca : Bivalvia : Cardiida : Tellinidae : Macoma : *Macoma nasuta*	23.03 - 5.333 Ma Miocene
Psammotreta (Leporimetis) obesa species	7	Animalia : Mollusca : Bivalvia : Cardiida : Tellinidae : Psammotreta : *Psammotreta (Leporimetis) obesa*	23.03 - 5.333 Ma Miocene
Tellina sp. genus	6	Animalia : Mollusca : Bivalvia : Cardiida : Tellinidae : *Tellina*	23.03 - 5.333 Ma Miocene
Tellina (Megangulus) lutea species	7	Animalia : Mollusca : Bivalvia : Cardiida : Tellinidae : Tellina : *Tellina (Megangulus) lutea*	23.03 - 5.333 Ma Miocene
Tellina aragonia species	7	Animalia : Mollusca : Bivalvia : Cardiida : Tellinidae : Tellina : *Tellina aragonia*	23.03 - 5.333 Ma Miocene
Cyclocardia sp. genus	6	Animalia : Mollusca : Bivalvia : Carditida : Carditidae : *Cyclocardia*	23.03 - 5.333 Ma Miocene
Cyclocardia (Cyclocardia) californica species	7	Animalia : Mollusca : Bivalvia : Carditida : Carditidae : Cyclocardia : *Cyclocardia (Cyclocardia) californica*	23.03 - 5.333 Ma Miocene
Glans sp. genus	6	Animalia : Mollusca : Bivalvia : Carditida : Carditidae : *Glans*	23.03 - 5.333 Ma Miocene
Panopea abrupta species	7	Animalia : Mollusca : Bivalvia : Adapedonta : Hiatellidae : Panopea : *Panopea abrupta*	23.03 - 5.333 Ma Miocene
Here excavata species	7	Animalia : Mollusca : Bivalvia : Lucinida : Lucinidae : Here : *Here excavata*	23.03 - 5.333 Ma Miocene
Lucinisca sp. genus	6	Animalia : Mollusca : Bivalvia : Lucinida : Lucinidae : *Lucinisca*	23.03 - 5.333 Ma Miocene
Lucinoma annulatum species	7	Animalia : Mollusca : Bivalvia : Lucinida : Lucinidae : Lucinoma : *Lucinoma annulatum*	23.03 - 5.333 Ma Miocene
Miltha sp. genus	6	Animalia : Mollusca : Bivalvia : Lucinida : Lucinidae : *Miltha*	23.03 - 5.333 Ma Miocene
Modiolatus rectus species	7	Animalia : Mollusca : Bivalvia : Mytilida : Mytilidae : Modiolatus : *Modiolatus rectus*	23.03 - 5.333 Ma Miocene
Modiolus sp. genus	6	Animalia : Mollusca : Bivalvia : Mytilida : Mytilidae : *Modiolus*	23.03 - 5.333 Ma Miocene
Modiolus capax species	7	Animalia : Mollusca : Bivalvia : Mytilida : Mytilidae : Modiolus : *Modiolus capax*	23.03 - 5.333 Ma Miocene
Mytilus sp. genus	6	Animalia : Mollusca : Bivalvia : Mytilida : Mytilidae : *Mytilus*	23.03 - 5.333 Ma Miocene
Mytilus (Crenomytilus) coalingensis species	7	Animalia : Mollusca : Bivalvia : Mytilida : Mytilidae : Mytilus : *Mytilus (Crenomytilus) coalingensis*	23.03 - 5.333 Ma Miocene
Saccella taphria species	7	Animalia : Mollusca : Bivalvia : Nuculanida : Nuculanidae : Saccella : *Saccella taphria*	23.03 - 5.333 Ma Miocene
Yoldia sp. genus	6	Animalia : Mollusca : Bivalvia : Nuculanida : Yoldiidae : *Yoldia*	23.03 - 5.333 Ma Miocene
Ostrea sp. genus	6	Animalia : Mollusca : Bivalvia : Ostreida : Ostreidae : *Ostrea*	23.03 - 5.333 Ma Miocene
Ostrea (Ostrea) atwoodii species	7	Animalia : Mollusca : Bivalvia : Ostreida : Ostreidae : Ostrea : *Ostrea (Ostrea) atwoodii*	23.03 - 5.333 Ma Miocene
Atrina sp. genus	6	Animalia : Mollusca : Bivalvia : Ostreida : Pinnidae : *Atrina*	23.03 - 5.333 Ma Miocene
Anomia sp. genus	6	Animalia : Mollusca : Bivalvia : Pectinida : Anomiidae : *Anomia*	23.03 - 5.333 Ma Miocene
Pododesmus macrochisma species	7	Animalia : Mollusca : Bivalvia : Pectinida : Anomiidae : Pododesmus : *Pododesmus macrochisma*	23.03 - 5.333 Ma Miocene
Limaria hemphilli species	7	Animalia : Mollusca : Bivalvia : Limida : Limidae : Limaria : *Limaria hemphilli*	23.03 - 5.333 Ma Miocene
Chlamys sp. genus	6	Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : *Chlamys*	23.03 - 5.333 Ma Miocene
Chlamys hodgei species	7	Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : Chlamys : *Chlamys hodgei*	23.03 - 5.333 Ma Miocene
Crassadoma gigantea species	7	Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : Crassadoma : *Crassadoma gigantea*	23.03 - 5.333 Ma Miocene
Lyropecten sp. genus	6	Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : *Lyropecten*	23.03 - 5.333 Ma Miocene
Nodipecten cerrosensis species	7	Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : Nodipecten : *Nodipecten cerrosensis*	23.03 - 5.333 Ma Miocene
Nodipecten estrellanus species	7	Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : Nodipecten : *Nodipecten estrellanus*	23.03 - 5.333 Ma Miocene
Patinopecten lohri species	7	Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : Patinopecten : *Patinopecten lohri*	23.03 - 5.333 Ma Miocene
Cryptomya sp. genus	6	Animalia : Mollusca : Bivalvia : Myida : Myidae : *Cryptomya*	23.03 - 5.333 Ma Miocene
Cryptomya californica species	7	Animalia : Mollusca : Bivalvia : Pholadida : Myidae : Cryptomya : *Cryptomya californica*	23.03 - 5.333 Ma Miocene
Mya sp. genus	6	Animalia : Mollusca : Bivalvia : Myida : Myidae : *Mya*	23.03 - 5.333 Ma Miocene
Mya (Arenomya) arenaria species	7	Animalia : Mollusca : Bivalvia : Pholadida : Myidae : Mya : *Mya (Arenomya) arenaria*	23.03 - 5.333 Ma Miocene
Mya (Mya) truncata species	7	Animalia : Mollusca : Bivalvia : Pholadida : Myidae : Mya : *Mya (Mya) truncata*	23.03 - 5.333 Ma Miocene
Zirfaea sp. genus	6	Animalia : Mollusca : Bivalvia : Myida : Pholadidae : *Zirfaea*	23.03 - 5.333 Ma Miocene
Zirfaea pilsbryi species	7	Animalia : Mollusca : Bivalvia : Myida : Pholadidae : Zirfaea : *Zirfaea pilsbryi*	23.03 - 5.333 Ma Miocene
Siliqua sp. genus	6	Animalia : Mollusca : Bivalvia : Adapedonta : Pharidae : *Siliqua*	23.03 - 5.333 Ma Miocene
Solen sp. genus	6	Animalia : Mollusca : Bivalvia : Adapedonta : Solenidae : *Solen*	23.03 - 5.333 Ma Miocene
Solena (Eosolen) perrini species	7	Animalia : Mollusca : Bivalvia : Solenida : Solenidae : Eosolen : *Solena (Eosolen) perrini*	23.03 - 5.333 Ma Miocene
Mactromeris hemphillii species	7	Animalia : Mollusca : Bivalvia : Venerida : Mactridae : Mactromeris : *Mactromeris hemphillii*	23.03 - 5.333 Ma Miocene
Mactromeris mercedensis species	7	Animalia : Mollusca : Bivalvia : Veneroidei : Mactridae : Mactromeris : *Mactromeris mercedensis*	23.03 - 5.333 Ma Miocene
Spisula sp. genus	6	Animalia : Mollusca : Bivalvia : Venerida : Mactridae : *Spisula*	23.03 - 5.333 Ma Miocene
Tresus sp. genus	6	Animalia : Mollusca : Bivalvia : Venerida : Mactridae : *Tresus*	23.03 - 5.333 Ma Miocene
Tresus nuttallii species	7	Animalia : Mollusca : Bivalvia : Venerida : Mactridae : Tresus : *Tresus nuttallii*	23.03 - 5.333 Ma Miocene
Compsomyax sp. genus	6	Animalia : Mollusca : Bivalvia : Cardiida : *Compsomyax*	23.03 - 5.333 Ma Miocene
Diplodonta sp. genus	6	Animalia : Mollusca : Bivalvia : Venerida : Ungulinidae : *Diplodonta*	23.03 - 5.333 Ma Miocene
Amiantis sp. genus	6	Animalia : Mollusca : Bivalvia : Venerida : Veneridae : *Amiantis*	23.03 - 5.333 Ma Miocene
Callithaca tenerrima species	7	Animalia : Mollusca : Bivalvia : Venerida : Veneridae : Callithaca : *Callithaca tenerrima*	23.03 - 5.333 Ma Miocene
Chione (Securella) securis fernandoensis subspecies	7.3	Animalia : Mollusca : Bivalvia : Veneroidei : Veneridae : Securella : *Chione (Securella) securis fernandoensis*	23.03 - 5.333 Ma Miocene
Chionopsis gnidia species	7	Animalia : Mollusca : Bivalvia : Venerida : Veneridae : Chionopsis : *Chionopsis gnidia*	23.03 - 5.333 Ma Miocene
Dosinia (Dosinia) ponderosa species	7	Animalia : Mollusca : Bivalvia : Veneroidei : Veneridae : Dosinia : *Dosinia (Dosinia) ponderosa*	23.03 - 5.333 Ma Miocene
Leukoma sp. genus	6	Animalia : Mollusca : Bivalvia : Veneroidei : Veneridae : *Leukoma*	23.03 - 5.333 Ma Miocene
Leukoma staminea species	7	Animalia : Mollusca : Bivalvia : Venerida : Veneridae : Leukoma : *Leukoma staminea*	23.03 - 5.333 Ma Miocene
Nutricola tantilla species	7	Animalia : Mollusca : Bivalvia : Venerida : Veneridae : Nutricola : *Nutricola tantilla*	23.03 - 5.333 Ma Miocene
Saxidomus nuttalli species	7	Animalia : Mollusca : Bivalvia : Venerida : Veneridae : Saxidomus : *Saxidomus nuttalli*	23.03 - 5.333 Ma Miocene
Transennella sp. genus	6	Animalia : Mollusca : Bivalvia : Venerida : Veneridae : *Transennella*	23.03 - 5.333 Ma Miocene
Scaphander jugularis species	7	Animalia : Mollusca : Gastropoda : Cephalaspidea : Cylichnidae : Scaphander : *Scaphander jugularis*	23.03 - 5.333 Ma Miocene
Kelletia sp. genus	6	Animalia : Mollusca : Gastropoda : Neogastropoda : Buccinidae : *Kelletia*	23.03 - 5.333 Ma Miocene
Cancellaria sp. genus	6	Animalia : Mollusca : Gastropoda : Neogastropoda : Cancellariidae : *Cancellaria*	23.03 - 5.333 Ma Miocene
Cancellaria fernandoensis species	7	Animalia : Mollusca : Gastropoda : Neogastropoda : Cancellariidae : Cancellaria : *Cancellaria fernandoensis*	23.03 - 5.333 Ma Miocene
Cancellaria tritonidea species	7	Animalia : Mollusca : Gastropoda : Neogastropoda : Cancellariidae : Cancellaria : *Cancellaria tritonidea*	23.03 - 5.333 Ma Miocene
Turricula piercei species	7	Animalia : Mollusca : Gastropoda : Neogastropoda : Clavatulidae : Turricula : *Turricula piercei*	23.03 - 5.333 Ma Miocene
Mitrella sp. genus	6	Animalia : Mollusca : *Mitrella*	23.03 - 5.333 Ma Miocene
Mitrella gausapata species	7	Animalia : Mollusca : Gastropoda : Neogastropoda : Columbellidae : Mitrella : *Mitrella gausapata*	23.03 - 5.333 Ma Miocene
Clavus (Clathrodrillia) coalingensis species	7	Animalia : Mollusca : Gastropoda : Neogastropoda : Drilliidae : Clathrodrillia : *Clavus (Clathrodrillia) coalingensis*	23.03 - 5.333 Ma Miocene
Elaeocyma empyrosia species	7	Animalia : Mollusca : Gastropoda : Neogastropoda : Drilliidae : Elaeocyma : *Elaeocyma empyrosia*	23.03 - 5.333 Ma Miocene
Acanthina sp. genus	6	Animalia : Mollusca : Gastropoda : Neogastropoda : Muricidae : *Acanthina*	23.03 - 5.333 Ma Miocene
Ceratostoma sp. genus	6	Animalia : Mollusca : Gastropoda : Neogastropoda : Muricidae : *Ceratostoma*	23.03 - 5.333 Ma Miocene
Forreria sp. genus	6	Animalia : Mollusca : Gastropoda : Neogastropoda : Muricidae : *Forreria*	23.03 - 5.333 Ma Miocene
Jaton sp. genus	6	Animalia : Mollusca : Gastropoda : Neogastropoda : Muricidae : *Jaton*	23.03 - 5.333 Ma Miocene
Ocenebra sp. genus	6	Animalia : Mollusca : Gastropoda : Neogastropoda : Muricidae : *Ocenebra*	23.03 - 5.333 Ma Miocene
Thais sp. genus	6	Animalia : Mollusca : Gastropoda : Neogastropoda : Muricidae : *Thais*	23.03 - 5.333 Ma Miocene
Nassarius sp. genus	6	Animalia : Mollusca : Gastropoda : Neogastropoda : Nassariidae : *Nassarius*	23.03 - 5.333 Ma Miocene
Nassarius (Caesia) coalingensis species	7	Animalia : Mollusca : Gastropoda : Neogastropoda : Nassariidae : Nassarius : *Nassarius (Caesia) coalingensis*	23.03 - 5.333 Ma Miocene
Nassarius (Caesia) grammatus species	7	Animalia : Mollusca : Gastropoda : Neogastropoda : Nassariidae : Nassarius : *Nassarius (Caesia) grammatus*	23.03 - 5.333 Ma Miocene
Nassarius (Demondia) californianus species	7	Animalia : Mollusca : Gastropoda : Neogastropoda : Nassariidae : Nassarius : *Nassarius (Demondia) californianus*	23.03 - 5.333 Ma Miocene
Olivella sp. genus	6	Animalia : Mollusca : Gastropoda : Neogastropoda : Olividae : *Olivella*	23.03 - 5.333 Ma Miocene
Crassispira sp. genus	6	Animalia : Mollusca : Gastropoda : Neogastropoda : Pseudomelatomidae : *Crassispira*	23.03 - 5.333 Ma Miocene
Megasurcula wynoocheensis species	7	Animalia : Mollusca : Gastropoda : Neogastropoda : Turridae : Megasurcula : *Megasurcula wynoocheensis*	23.03 - 5.333 Ma Miocene
Megasurcula sp. genus	6	Animalia : Mollusca : Gastropoda : Neogastropoda : Pseudomelatomidae : *Megasurcula*	23.03 - 5.333 Ma Miocene
Calyptraea sp. genus	6	Animalia : Mollusca : Gastropoda : Littorinimorpha : Calyptraeidae : *Calyptraea*	23.03 - 5.333 Ma Miocene
Calyptraea filosa species	7	Animalia : Mollusca : Gastropoda : Calyptraeidae : Calyptraea : *Calyptraea filosa*	23.03 - 5.333 Ma Miocene
Crepidula sp. genus	6	Animalia : Mollusca : Gastropoda : Littorinimorpha : Calyptraeidae : *Crepidula*	23.03 - 5.333 Ma Miocene
Crepidula adunca species	7	Animalia : Mollusca : Gastropoda : Littorinimorpha : Calyptraeidae : Crepidula : *Crepidula adunca*	23.03 - 5.333 Ma Miocene
Crepidula nummaria species	7	Animalia : Mollusca : Gastropoda : Littorinimorpha : Calyptraeidae : Crepidula : *Crepidula nummaria*	23.03 - 5.333 Ma Miocene
Crepidula onyx species	7	Animalia : Mollusca : Gastropoda : Littorinimorpha : Calyptraeidae : Crepidula : *Crepidula onyx*	23.03 - 5.333 Ma Miocene
Crepidula princeps species	7	Animalia : Mollusca : Gastropoda : Littorinimorpha : Calyptraeidae : Crepidula : *Crepidula princeps*	23.03 - 5.333 Ma Miocene
Crucibulum sp. genus	6	Animalia : Mollusca : Gastropoda : Littorinimorpha : Calyptraeidae : *Crucibulum*	23.03 - 5.333 Ma Miocene
Cirsotrema sp. genus	6	Animalia : Mollusca : Gastropoda : Epitoniidae : *Cirsotrema*	23.03 - 5.333 Ma Miocene
Epitonium (Nitidiscala) eelense species	7	Animalia : Mollusca : Gastropoda : Epitoniidae : Epitonium : *Epitonium (Nitidiscala) eelense*	23.03 - 5.333 Ma Miocene
Diodora sp. genus	6	Animalia : Mollusca : Gastropoda : Lepetellida : Fissurellidae : *Diodora*	23.03 - 5.333 Ma Miocene
Euspira sp. genus	6	Animalia : Mollusca : *Euspira*	23.03 - 5.333 Ma Miocene
Glossaulax reclusiana species	7	Animalia : Mollusca : Gastropoda : Naticidae : Neverita : *Glossaulax reclusiana*	23.03 - 5.333 Ma Miocene
Neverita sp. genus	6	Animalia : Mollusca : Gastropoda : Littorinimorpha : Naticidae : *Neverita*	23.03 - 5.333 Ma Miocene
Polinices sp. genus	6	Animalia : Mollusca : Gastropoda : Naticidae : *Polinices*	23.03 - 5.333 Ma Miocene
Sinum scopulosum species	7	Animalia : Mollusca : Gastropoda : Littorinimorpha : Naticidae : Sinum : *Sinum scopulosum*	23.03 - 5.333 Ma Miocene
Pusio sp. genus	6	Animalia : Mollusca : Gastropoda : Neogastropoda : Pisaniidae : *Pusio*	23.03 - 5.333 Ma Miocene
Calicantharus fortis species	7	Animalia : Mollusca : Gastropoda : Siphonaliidae : Calicantharus : *Calicantharus fortis*	23.03 - 5.333 Ma Miocene
Calliostoma sp. genus	6	Animalia : Mollusca : Gastropoda : Trochida : Calliostomatidae : *Calliostoma*	23.03 - 5.333 Ma Miocene
Calliostoma ligatum species	7	Animalia : Mollusca : Gastropoda : Trochida : Calliostomatidae : Calliostoma : *Calliostoma ligatum*	23.03 - 5.333 Ma Miocene
Margarites sp. genus	6	Animalia : Mollusca : Gastropoda : Trochida : Margaritidae : *Margarites*	23.03 - 5.333 Ma Miocene
Turcica sp. genus	6	Animalia : Mollusca : Gastropoda : Seguenziida : Eucyclidae : *Turcica*	23.03 - 5.333 Ma Miocene
Bittium sp. genus	6	Animalia : Mollusca : Gastropoda : Cerithiidae : *Bittium*	23.03 - 5.333 Ma Miocene
Turritella sp. genus	6	Animalia : Mollusca : Gastropoda : Turritellidae : *Turritella*	23.03 - 5.333 Ma Miocene
Turritella (Broderiptella) gonostoma species	7	Animalia : Mollusca : Gastropoda : Sorbeoconcha : Turritellidae : Turritella : *Turritella (Broderiptella) gonostoma*	23.03 - 5.333 Ma Miocene
Turritella cooperi species	7	Animalia : Mollusca : Gastropoda : Turritellidae : Turritella : *Turritella cooperi*	23.03 - 5.333 Ma Miocene
Dentalium sp. genus	6	Animalia : Mollusca : Scaphopoda : Dentaliida : Dentaliidae : *Dentalium*	23.03 - 5.333 Ma Miocene

References

Durham D. L., Addicott W. O. (1965) Pancho Rico Formation, Salinas Valley, United States Geological Survey Professional Paper 524 A, A1-A22

Roth B., Guruswami-Naidu R. (1978) A new Miocene species of Nuttallia (Mollusca: Bivalvia) from the Salinas Valley, California, Journal of Paleontology 52 1, 61-66

Zullo V. A. (1992) Revision of the balanid barnacle genus Concavus Newman, 1982, with the description of a new subfamily, two new genera, and eight new species, The Paleontological Society Memoir 27, 1-46

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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