Site 17F (LACMIP 365), Calico Hills (Miocene of the United States)

Where: California (35.0° N, 116.8° W: paleocoordinates 34.1° N, 111.2° W)

• coordinate estimated from map

• small collection-level geographic resolution

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

• Lower nodule zone. 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

Collected by Laura Rouse; reposited in the LACM

Primary reference: W. D. Pierce. 1963. Fossil arthropods of California no. 25. Silicified leafhoppers from California mountains nodules. Bulletin of the Southern California Academy of Sciences 62:69-82 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 152207: authorized by Matthew Clapham, entered by Matthew Clapham on 11.11.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Insecta
 Diptera - Ceratopogonidae
"Culicoides miocenea n. sp." = Culicoides mioceneus
"Culicoides miocenea n. sp." = Culicoides mioceneus Pierce 1966 biting midge
LACMIP S 9115 (coll Kanakoff; no. 2535 from nodule 16676)
 Diptera - Psychodidae
Paraculicoides rouseae n. gen. n. sp.
Paraculicoides rouseae n. gen. n. sp. Pierce 1966 moth fly
LACMIP S 9121 (coll. Rouse; no. 4845 from nodule 28835)
Phlepsius
  -
Phlepsius weissmanae n. sp. Pierce 1963
LACMIP 3723