Creede (UCM collection) (Oligocene of the United States)

Where: Colorado (37.8° N, 106.9° W: paleocoordinates 38.8° N, 101.4° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Creede Formation, Late/Upper Oligocene (28.4 - 23.0 Ma)

• The deposits are dated at 26.26-26.93 Ma (Lanphere 2000; Prothero 2008; Reynolds et al 2000)

Environment/lithology: crater lake; diatomaceous, tuffaceous shale

• "The Creede Formation also consists of lacustrine deposits that were formed by the collapse of the Creede caldera (Larsen and Crossey 1996)."

Size classes: macrofossils, mesofossils

Preservation: mold/impression, adpression

Collected by Allan Caplan

• Insects are kept at the UCMNH; Collection includes 102 insects and 330 plants

Primary reference: T. D. A. Cockerell. 1941. Some Tertiary Insects (Hymenoptera) from Colorado. American Journal of Science, Series 5 239:354-356 [C. Labandeira/C. Labandeira/M. Kosnik]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 117882: authorized by Matthew Clapham, entered by Alex Aguilar on 28.09.2011, edited by Jered Karr

Creative Commons license: CC BY (attribution)

Taxonomic list

• "Five insect orders have been described from the Creede Formation, with the Coleoptera, Diptera (including Bibionidae) and Hymenoptera being most abundant." D. Smith per. com.
Show authors, comments, and common names
Insecta
 Hymenoptera - Pamphiliidae
"Cephaleia caplani n. sp." = Tapholyda caplani2
"Cephaleia caplani n. sp." = Tapholyda caplani2 Cockerell 1933 sawfly
UCM 18623, 19165, 35546, 35549, 36942, 35550 (new specimens in Jouault et al. 2022)
 Hymenoptera - Ichneumonidae
Tylocomnus creedensis n. sp.
Tylocomnus creedensis n. sp. Cockerell 1941 ichneumon wasp
 Diptera - Bibionidae
"Plecia creedensis" = Penthetria creedensis1
"Plecia creedensis" = Penthetria creedensis1 James 1938 march fly
one paratype
1Carpenter et al. 1938; 2Cockerell 1933