USGS Cenozoic M982 Wunpost (Miocene of the United States)

Also known as UCMP IP6659

Where: Monterey County, California (35.9° N, 120.8° W: paleocoordinates 35.2° N, 116.5° W)

• coordinate stated in text

When: Pancho Rico Formation, Miocene (23.0 - 5.3 Ma)

• Described in reference as Pliocene. Pancho Rico Formation is Miocene per Addicott 1978 (Geological Survey Bulletin, Issue 1457).

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Collected by J. G. Vedder and C. A. Repenning in 1960

Primary reference: D. L. Durham and W. O. Addicott. 1965. Pancho Rico Formation, Salinas Valley. United States Geological Survey Professional Paper 524(A):A1-A22 [P. Holroyd/S. Tremblay]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 194805: authorized by Patricia Holroyd, entered by Susan Tremblay on 29.06.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Gastropoda
 Cerithioidea - Turritellidae
Turritella gonostoma hemphilli
Bivalvia
 Arcida - Arcidae
Anadara trilineata canalis
Echinoidea
 Clypeasteroida - Echinarachniidae
"Astrodapsis salinasensis" = Astrodapsis spatiosus, Astrodapsis fernandoensis, "Astrodapsis aff. cuyamanus" = Astrodapsis whitneyi
"Astrodapsis salinasensis" = Astrodapsis spatiosus Kew 1920 sand dollar
Astrodapsis fernandoensis Pack 1909 sand dollar
"Astrodapsis aff. cuyamanus" = Astrodapsis whitneyi Rémond 1863 sand dollar
Occurrence at loc. Ml674 about 500 feet S. of M982 and somewhat higher stratigraphically.
Thecostraca
 Balanomorpha - Balanidae
Balanus gregarius
Balanus gregarius Conrad 1856 barnacle
Gastropoda
 Neotaenioglossa - Calyptraeidae
Calyptraea sp.
Calyptraea sp. Lamarck 1799 slipper shell
 Pseudomelanoidea - Pseudomelaniidae
Crassispira aff. martinensis
Crassispira aff. martinensis Dall 1918 snail
Crassispira n. sp.? aff. martinensis
 Neogastropoda - Turridae
Megasurcula aff. wynoocheensis
Megasurcula aff. wynoocheensis Weaver 1912 turrid
Megasurcula n. sp. aff. wynoocheensis
 Neogastropoda - Nassariidae
"Nassarius aff. californianus" = Caesia californiana
"Nassarius aff. californianus" = Caesia californiana Conrad 1856 snail
 Neogastropoda - Siphonaliidae
Calicantharus sp.
Calicantharus sp. Clark 1938 snail
 Sorbeoconcha - Procerithiidae
"Bittium casmaliense" = Lirobittium casmaliense
"Bittium casmaliense" = Lirobittium casmaliense Bartsch 1911 snail
two forms
 Trochoidea - Trochidae
Calliostoma sp.
Calliostoma sp. Swainson 1840 top snail
Scaphopoda
 Dentaliida - Dentaliidae
? Dentalium sp.
? Dentalium sp. Linnaeus 1758 tusk shell
Bivalvia
 Pectinida - Pectinoidae
Lyropecten cf. terminus
Lyropecten cf. terminus Arnold 1906 scallop
 Ostreida - Ostreidae
"Ostrea atwoodi" = Ostrea (Ostrea) atwoodii
"Ostrea atwoodi" = Ostrea (Ostrea) atwoodii Gabb 1866 oyster
 Solenida - Pharidae
"Siliqua cf. media" = Siliqua alta
"Siliqua cf. media" = Siliqua alta Broderip and Sowerby I 1829 clam
 Cardiida - Ungulinidae
Diplodonta sp.
Diplodonta sp. Bronn 1831 clam
 Cardiida - Cardiidae
"? Trachycardium quadragenarium" = Dallocardia quadragenarium
"? Trachycardium quadragenarium" = Dallocardia quadragenarium Conrad 1837 cockle
 Cardiida - Tellinidae
? Macoma nasuta
? Macoma nasuta Conrad 1837 tellin clam
 Carditida - Carditidae
"Cyclocardia californica" = Coanicardita californica
"Cyclocardia californica" = Coanicardita californica Dall 1903 clam