USGS loc. M3978, Temblor Creek (Oligocene of the United States)

Where: Kern County, California (35.4° N, 119.8° W: paleocoordinates 34.0° N, 111.6° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Wygal Sandstone Member (Temblor Formation), Late/Upper Oligocene (28.4 - 23.0 Ma)

• STRATIGRAPHIC RELATIONS: From Wygal Sst Mbr which regionally overlies the Cymric Shale and is overlain by the Santos Shale of the lower (type) Temblor Fm (Late Oligocene-Middle Miocene). Collection from base of member, where it unconformably overlies the Eocene Point of Rocks Sandstone. THICKNESS: From bed of unknown thickness within member that ranges between 20 and 40 ft in thickness. AGE: Late Oligocene; lower Zemorian foraminiferal staghe, Blakeley molluscan stage. STRATIGRAPHIC POSITION: Unknown position within member.

• bed-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; lithified, concretionary, shelly/skeletal sandstone

• ENVIRONMENT: Warm, shallow-water depositional environment - less than 20 fathoms and possibly much shallower.

Size class: macrofossils

Collected by H. S. Sonneman and W. O. Addicott in 1968; reposited in the USNM

Collection methods: surface (in situ),

Primary reference: W. O. Addicott. 1973. Oligocene molluscan biostratigraphy and paleontology of the Lower Part of the type Temblor Formation, California. United States Geological Survey Professional Paper 791:1-48 [A. Hendy/A. Hendy/A. Hendy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 219735: authorized by Jonathan Marcot, entered by Jonathan Marcot on 20.04.2021

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Lucinida - Lucinidae
Here excavata Carpenter 1857 clam
Lucinoma acutilineata Conrad 1849 clam
 Cardiida - Mactridae
"Spisula cf. albaria" = Mactromeris albaria, "Spisula cf. rushi" = Mactromeris rushi
"Spisula cf. albaria" = Mactromeris albaria Conrad 1848 clam
"Spisula cf. rushi" = Mactromeris rushi Wagner and Schilling 1923 clam
 Ostreida - Gryphaeidae
"Crassostrea eldridgei" = Crenostrea eldridgei
"Crassostrea eldridgei" = Crenostrea eldridgei Arnold 1907 oyster
as ssp. Crassostrea eldridgei ynezana
 Arcida - Arcidae
 Mytilida - Mytilidae
"Crenomytilus cf. arnoldi" = Mytilus (Mytilus) arnoldi
"Crenomytilus cf. arnoldi" = Mytilus (Mytilus) arnoldi Clark 1918 mussel
Gastropoda
 Neogastropoda - Siphonaliidae
Bruclarkia seattlensis Durham 1944 snail
 Sorbeoconcha - Ficidae
Ficus cf. modesta Conrad 1848 fig shell
 Sorbeoconcha - Naticidae
"Neverita (Glossaulax) thomsonae" = Glossaulax reclusiana
"Neverita (Glossaulax) thomsonae" = Glossaulax reclusiana Deshayes 1839 moon snail