Site 2C, Calico Hills (Miocene of the United States)

Where: California (35.0° N, 116.8° W: paleocoordinates 34.1° N, 111.3° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Calico Member (Barstow Formation), Hemingfordian (20.4 - 16.0 Ma)

• Overlying fine-grained lacustrine beds (here referred to as the Calico Member of the Barstow Formation) are bracketed between ca. 19 and 16.9 Ma, and are thus older than the type section of the Barstow Formation in the Mud Hills. Several 17.1–16.8 Ma calc-alkaline dacite domes intrude the Calico Member.

• group of beds-level stratigraphic resolution

Environment/lithology: lacustrine - large; lithified, nodular, brown shale

• Laminated brown-weathering shale including four beds of nodules

Size classes: macrofossils, mesofossils

Preservation: replaced with calcite, replaced with silica, replaced with other

Reposited in the LACM

Primary reference: W. D. Pierce. 1966. Fossil arthropods of California 29. Silicified Miocene pupae of ceratopogonid flies. Bulletin of the Southern California Academy of Sciences 65:81-98 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 152228: authorized by Matthew Clapham, entered by Matthew Clapham on 11.11.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Insecta
 Diptera - Ceratopogonidae
Culicoides carri n. sp. Pierce 1966 biting midge
LACMIP S 9122 (coll. John Carr; no. 4279 from nodule 2670)