Florissant, Fossil Stump Hill (Eocene of the United States)

Where: Teller County, Colorado (38.9° N, 105.3° W: paleocoordinates 40.4° N, 97.0° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Florissant Formation, Chadronian (37.2 - 33.9 Ma)

Environment/lithology: lacustrine - large; lithified, diatomaceous, tuffaceous shale

• "shales"

Size class: mesofossils

Preservation: adpression

Collected by J. Henderson, F. Ramaley; reposited in the UCM

Primary reference: S. A. Rohwer. 1908. On the Tenthredinoidea of the Florissant Shales. Bulletin of the American Museum of Natural History 24:521-530 [C. Labandeira/C. Labandeira/M. Kosnik]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 122629: authorized by Matthew Clapham, entered by Matthew Clapham on 04.01.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Insecta
 Diptera - Syrphidae
Platycheirus lethaeus n. sp.3
Platycheirus lethaeus n. sp.3 Melander 1949 hover fly
UCM 19899 (coll J. Henderson, F. Ramaley)
 Hymenoptera - Pompilidae
"Agenia saxigena" = Agenioideus saxigenus4
"Agenia saxigena" = Agenioideus saxigenus4 Cockerell 1908 spider wasp
coll W.P. Cockerell, 1907
 Hymenoptera - Formicidae
"Ponera hendersoni n. sp." = Protazteca hendersoni1
"Ponera hendersoni n. sp." = Protazteca hendersoni1 Cockerell 1906 ant
 Hymenoptera - Ichneumonidae
Mesopimpla sequoiarum n. gen. n. sp.2
Mesopimpla sequoiarum n. gen. n. sp.2 Cockerell 1919 ichneumon wasp
Obtained by purchase by Wickham
 Hymenoptera -
Pseudocimbex clavatus n. gen. n. sp.
Pseudocimbex clavatus n. gen. n. sp. Rohwer 1908 wood wasp
Colorado state capitol building
1Cockerell 1906; 2Cockerell 1919; 3Melander 1949; 4Rohwer 1909