USGS Cenozoic M981 Reliz Canyon (Miocene of the United States)

Also known as UCMP IP6658

Where: Monterey County, California (36.3° N, 121.3° W: paleocoordinates 35.5° N, 116.9° 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

• Water depths of 30 fathoms or more are suggested by the presence of Turcica sp. and abundant Terebratalia arnoldi Hertlein and Grant.

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 194804: authorized by Patricia Holroyd, entered by Susan Tremblay on 29.06.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

Maxillopoda
 Sessilia - Balanidae
Rhynchonellata
 Terebratulida - Terebrataliidae
Lingulata
 Lingulida - Disciniidae
Bivalvia
 Arcida - Arcidae
Anadara trilineata Conrad 1856 ark
 Pectinida - Pectinoidae
Chlamys sp. Röding 1798 scallop
Gastropoda
 Neogastropoda - Muricidae
Jaton cf. festivus murex snail
 Calyptraeoidea - Calyptraeidae
Calyptraea sp. Lamarck 1799 slipper shell
Crepidula "n. sp. aff. aculeata" Lamarck 1799 slipper shell
 Seguenzioidea - Turcicidae
Turcica cf. caffea snail
brevis