Florissant (USGS collection) (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

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

• formation-level stratigraphic resolution

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

Size class: macrofossils

Preservation: adpression

Collection methods: quarrying, surface (float), surface (in situ),

Primary reference: S. H. Scudder. 1892. Some Insects of special interest from Florissant, Colorado and other points in the Tertiaries of Colorado and Utah. Bulletin of the United States Geological Survey 93:1-25 [M. Clapham/J. Karr]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 34966: authorized by Dena Smith, entered by April Kinchloe on 21.10.2003, edited by Jered Karr and Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

Insecta
 Hemiptera - Cicadidae
"Cicada grandiosa n. sp." = Hadoa grandiosa
"Cicada grandiosa n. sp." = Hadoa grandiosa Scudder 1892 cicada
USGS 1850
 Dermaptera - Anisolabididae
"Labiduromma exsulatum" = Spiladopygia exsulata1
"Labiduromma exsulatum" = Spiladopygia exsulata1 Scudder 1885 earwig
USGS 1607(1606)
 Coleoptera - Curculionidae
Otiorhynchites absentivus n. sp.2, "Balaninus minusculus" = Curculio minusculus2, "Balaninus femoratus" = Curculio femoratus2, Anthonomus defossus2, Smicrorhynchus macgeei2, Geralophus occultus2, "Ceutorhynchus evinctus n. sp." = Cryptorhynchus evinctus2, Ophryastites cinereus n. sp.2
Otiorhynchites absentivus n. sp.2 Scudder 1893 snout beetle
USGS 969(970)
"Balaninus minusculus" = Curculio minusculus2 Scudder 1893 snout beetle
USGS 763
"Balaninus femoratus" = Curculio femoratus2 Scudder 1893 snout beetle
USGS 966
Anthonomus defossus2 Scudder 1876 snout beetle
USGS 765, 766, 768, 769, 770, 772 (Scudder), 1318 (J.C. Hersey)
Smicrorhynchus macgeei2 Scudder 1893 snout beetle
USGS 771
Geralophus occultus2 Scudder 1876 snout beetle
USGS 971
"Ceutorhynchus evinctus n. sp." = Cryptorhynchus evinctus2 Scudder 1893 snout beetle
USGS 764
Ophryastites cinereus n. sp.2 Scudder 1893 snout beetle
USGS 972
 Coleoptera - Brentidae
"Apion pumilum" = Toxorhynchus pumilum2
"Apion pumilum" = Toxorhynchus pumilum2 Scudder 1893 weevil
USGS 2178
 Diptera - Cylindrotomidae
"Cyttaromyia clathrata" = Cyttaromyia princetoniana3
"Cyttaromyia clathrata" = Cyttaromyia princetoniana3 Scudder 1894 long bodied crane fly
USGS 1510
 Diptera - Limoniidae
Dicranomyia stagnorum3 Scudder 1894 crane fly
USGS 1512
 Diptera - Tipulidae
Tipula internecata3 Scudder 1894 crane fly
USGS 1482
Tipula subterjacens3 Scudder 1894 crane fly
USGS 2063, 2083
Tipula florissanta3 Scudder 1894 crane fly
USGS 1481, 1502
 Odonata - Coenagrionidae
"Trichocnemis aliena n. sp." = Argia aliena
"Trichocnemis aliena n. sp." = Argia aliena Scudder 1892 narrow-winged damselfly
USGS 1660