Locality A-9739 - Reef Ridge (Temblor Formation) (Miocene of the United States)

Also known as A-9739

Where: Frensno County, California (35.9° N, 120.2° W: paleocoordinates 35.2° N, 115.8° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Temblor Formation, Middle Miocene (16.0 - 11.6 Ma)

• From approx. 150 ft stratigraphic interval. Sandstone with interbedded siltstone from below D-1048. From faunizone B (zone 3) (for that reason assigned an middle Miocene age).

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; lithified, medium-grained, brown, gray, silty sandstone

• Deposited in partially enclosed bay. The fauna has a preponderance of shallow-water forms and many of the genera are characteristic of tropical or subtropical climate.
• Dull gray and brown, medium-grained, silty sandstone with some interbedded siltstone, firmly cemented by calcareous material.

Size class: macrofossils

Reposited in the UCMP

Collection methods: quarrying,

• Collected by J. Durham, 1953 and 1956. Collectetions reposited at UCMP.

Primary reference: O.S. Adegoke. 1969. Stratigraphy and paleontology of the marine Neogene formations of the Coalinga region, California. University of California Publications in Geological Sciences 80 [A. Miller/A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 44940: authorized by Austin Hendy, entered by Austin Hendy on 20.09.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

• Exhaustive for echinodermata and mollusca. Key to abundance: c=common; f=few; r=rare.
 Pectinida - Pectinoidae
Aequipecten andersoni Arnold 1906 scallop
 Ostreida - Ostreidae
Ostrea sp. Linnaeus 1758 oyster
doubtful determination
 Cardiida - Mactridae
Pseudocardium densatum Conrad 1856 clam
Subspecies: Pseudocardium densatum minor
 Cardiida - Ungulinidae
Diplodonta orbella Gould 1851 clam
 Cardiida - Veneridae
Chione (Chionopsis) richthofeni Hertlein and Jordan 1927 venus clam
Dosinia sp. Scopoli 1777 venus clam
doubtful determination
Dosinia (Dosinidia) margaritana Wiedey 1928 venus clam
Saxidomus vaquerosensis Arnold 1909 venus clam
Tivela (Pachydesma) diabloensis Clark 1915 venus clam
Clementia (Egesta) pertenuis Gabb 1864 venus clam
 Cardiida - Solecurtidae
Tagelus clarki Loel and Corey 1932 clam
 Cardiida - Tellinidae
Tellina sp. Linnaeus 1758 tellin clam
oubtful determination
 Cardiida - Cardiidae
Cardium sp. Linnaeus 1758 cockle
doubtful determination
 Lucinida - Lucinidae
Lucinoma acutilineata Conrad 1849 clam
 Clypeasteroida - Echinarachniidae