USGS Cenozoic M902 Reliz Canyon: Miocene, California
collected by D. L Durham 1960

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
? Balanus gregarius Conrad 1856
Rhynchonellata - Terebratulida - Terebrataliidae
Terebratalia arnoldi Hertlein and Grant IV 1944
Lingulata - Discinida - Disciniidae
Discinisca sp. Gray 1840
Bivalvia - Arcida - Glycymerididae
Glycymeris sp. Da Costa 1778
Bivalvia - Arcida - Arcidae
Anadara trilineata (Conrad 1856)
Bivalvia - Ostreida - Ostreidae
Ostrea atwoodi (Gabb 1866)
recombined as Ostrea (Ostrea) atwoodii
Bivalvia - Pectinida - Pectinidae
Chlamys informal n. sp. aff. nipponensis
Chlamys cf. hodgei (Hertlein 1925)
Bivalvia - Lucinida - Lucinidae
Lucinisca informal n. sp.? aff. nuttalli
spelled with current rank as Lucina (Lucinisca)
Bivalvia - Cardiida - Tellinidae
Macoma sp. Leach 1819
Bivalvia - Cardiida - Veneridae
Protothaca sp. Dall 1902
synonym of Leukoma
Gastropoda - Eucyclidae
Turcica cf. caffea (Gabb 1865)
brewis
Gastropoda - Lepetellida - Fissurellidae
? Diodora informal ? aff. D. inaequalis
Gastropoda - Turritellidae
Turritella informal n. sp.
Gastropoda - Neogastropoda - Nassariidae
Nassarius sp. Duméril 1806
Gastropoda - Neogastropoda - Cancellariidae
? Cancellaria sp. Lamarck 1799
Gastropoda - Neogastropoda - Muricidae
Ocenebra sp. Leach in Gray 1847
? Ceratostoma foliatum (Gmelin 1791)
Gastropoda - Neotaenioglossa - Calyptraeidae
Crepidula informal n. sp. aff. aculeata
Calyptraea filosa (Gabb 1866)
see common names

Geography
Country:United States State/province:California County:Monterey
Coordinates: 36.2° North, 121.3° West (view map)
Paleocoordinates:35.5° North, 116.9° West
Basis of coordinate:stated in text
Time
Period:Neogene Epoch:Miocene
10 m.y. bin:Cenozoic 5-6
Key time interval:Miocene
Age range of interval:23.03000 - 5.33300 m.y. ago
Stratigraphy
Formation:Pancho Rico
Stratigraphy comments: Described in reference as Pliocene. Pancho Rico Formation is Miocene per Addicott 1978 (Geological Survey Bulletin, Issue 1457).
Lithology and environment
Primary lithology: not reported
Environment:marine indet.
Geology comments: The molluscan fauna of the Pancho Rico Formation consists of taxa whose living representatives or modern analogs are usually found in the shallow nearshore areas of the northeastern Pacific Ocean. Many of the still living species are known to range into water deeper than 10-15 fathoms, but exclusively moderate-depth
taxa are found only in collections from USGS localities M902 and M981 in Reliz Canyon. These localities are near the northwestern end of the outcrop area of the
Pancho Rico and have an unusual faunal composition with respect to assemblages frmn the type area on Pancho Rico Creek and elsewhere on the east side of Salinas Valley. Water depths of 30 fathoms or more are suggested by the presence of Tu,rcica sp. and abundant Terebratalia arnoldi Hertlein and Grant.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:biostratigraphic analysis
Collectors:D. L Durham Collection dates:1960
Metadata
Database number:195081
Authorizer:P. Holroyd Enterer:S. Tremblay
Modifier:M. Clapham Research group:marine invertebrate
Created:2018-07-17 16:15:41 Last modified:2021-09-23 15:14:34
Access level:the public Released:2018-07-17 16:15:41
Creative Commons license:CC BY
Reference information

Primary reference:
66206. 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]