Also known as UCMP IP6635
Where: Monterey County, California (36.2° N, 121.0° W: paleocoordinates 35.9° N, 119.1° W)
• coordinate stated in text
When: Pancho Rico Formation, Messinian (7.2 - 5.3 Ma)
• Described in reference as Pliocene. Pancho Rico Formation is Miocene per Addicott 1978 (Geological Survey Bulletin, Issue 1457). The fossiliferous bed is about 3 feet thick. Fossils are scarce in adjacent beds. AGE: Revised to Messian consistent with EPICC stratigraphic revision [A. Hendy, 06/2020].
Environment/lithology: marine; sandstone
Size class: macrofossils
Collected by D. L Durham 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 194797: authorized by Patricia Holroyd, entered by Susan Tremblay on 29.06.2018
Creative Commons license: CC BY (attribution)
Taxonomic list
Echinoidea | |
"Astrodapsis salinasensis" = Astrodapsis spatiosus
"Astrodapsis salinasensis" = Astrodapsis spatiosus Kew 1920 sand dollar Occurrence in University of California Museum of Paleontology (UCMP) collection from USGS loc. M1341 which is about 1/2 mile SE of M913.
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Gastropoda | |
"Ocenebra cf. tenuisculpta" = Ocinebrina tenuisculpta, Forreria belcheri
"Ocenebra cf. tenuisculpta" = Ocinebrina tenuisculpta Carpenter 1866 murex snail
Forreria belcheri Hinds 1843 murex snail Occurrence in University of California Museum of Paleontology (UCMP) collection from USGS loc. M1341 which is about 1/2 mile SE of M913.
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Bivalvia | |
"Ostrea atwoodi" = Ostrea (Ostrea) atwoodii
"Ostrea atwoodi" = Ostrea (Ostrea) atwoodii Gabb 1866 oyster | |
"Pododesmus cepio" = Pododesmus (Monia) macrochisma
"Pododesmus cepio" = Pododesmus (Monia) macrochisma Deshayes 1839 scallop | |
Lyropecten terminus Arnold 1906 scallop | |
Thecostraca | |
Balanus "n. sp. ?" Da Costa 1778 barnacle Occurrence in collection from loc. M2279 from same gully. Species represented by large, concentrically sculptured scuta and terga which lack radial sculpture.
Balanus gregarius Conrad 1856 barnacle |