PBDB Collection

Roan Mountain (Scudder Coll) (Eocene of the United States)

Where: Colorado (39.5° N, 108.4° W: paleocoordinates 43.3° N, 95.0° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Green River Formation, Bridgerian (50.3 - 46.2 Ma)

Environment/lithology: lacustrine - large; shale

Size classes: macrofossils, mesofossils

Preservation: mold/impression, adpression

Collected by S. Scudder

Primary reference: T. D. A. Cockerell. 1921. Eocene Insects from the Rocky Mountains. Proceedings of the United States National Museum 57:233-260 [C. Labandeira/C. Labandeira/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 114681: authorized by Matthew Clapham, entered by Alex Aguilar on 20.08.2011, edited by Jered Karr and Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Insecta
Diptera - Anisopodidae	"Eothereva simplex n. sp." = Olbiogaster simplex "Eothereva simplex n. sp." = Olbiogaster simplex Cockerell 1921 wood gnat USNM 66573
Diptera - Limoniidae	"Gonomyia scudderi n. sp." = Rhabdomastix scudderi "Gonomyia scudderi n. sp." = Rhabdomastix scudderi Cockerell 1921 crane fly USNM 66568 coll Scudder
Diptera - Cylindrotomidae	Cylindrotoma veterana n. sp. Cylindrotoma veterana n. sp. Cockerell 1921 long bodied crane fly USNM 66567
Hemiptera - Dinidoridae	Dinidorites margiformis¹ Dinidorites margiformis¹ Cockerell 1921 dinidorid bug USGS 219(220), obtained by Scudder
Hemiptera - Cicadellidae	"Erythroneura eocenica n. sp." = Thamnotettix eocenicus, Cicadella scudderi n. sp. "Erythroneura eocenica n. sp." = Thamnotettix eocenicus Cockerell 1921 leafhopper USNM 66566 Cicadella scudderi n. sp. Cockerell 1921 leafhopper USNM 66565
Hemiptera - Ricaniidae	Hammapteryx tripunctata n. sp.² Hammapteryx tripunctata n. sp.² Cockerell and Sandhouse 1921 planthopper USNM 67717 (Scudder USGS 217/211)
Hemiptera - Nogodinidae	Lithopsis dubiosa n. sp.², Lithopsis simillima n. sp., Detyopsis packardi n. gen. n. sp., Detyopsis scudderi n. gen. n. sp. Lithopsis dubiosa n. sp.² Cockerell and Sandhouse 1921 planthopper USNM 67718 (Scudder USGS 105/106), USGS 123/129 Lithopsis simillima n. sp. Cockerell 1921 planthopper USNMN 66557 coll Scudder Detyopsis packardi n. gen. n. sp. Cockerell 1921 planthopper USNM 66558 coll Scudder (also USGS 180 in Cockerell & Sandhouse) Detyopsis scudderi n. gen. n. sp. Cockerell 1921 planthopper USNM 66559
Hemiptera - Lophopidae	Scoparidea nebulosa n. gen. n. sp. Scoparidea nebulosa n. gen. n. sp. Cockerell 1921 planthopper USNM 66561
Hemiptera - Flatidae	Thaumastocladius simplex n. gen. n. sp.² Thaumastocladius simplex n. gen. n. sp.² Cockerell and Sandhouse 1921 planthopper USNM 67719 (Scudder USGS 774)
Trichoptera - Limnephilidae	Limnephilus eocenicus n. sp. Limnephilus eocenicus n. sp. Cockerell 1921 caddisfly USNM 66552 coll Scudder
Coleoptera - Cerambycidae	"Lema pervetusta n. sp." = Clytus pervetustus "Lema pervetusta n. sp." = Clytus pervetustus Cockerell 1921 longhorned beetle USNM 66579
Coleoptera - Curculionidae	"Eudiagogus terrosus" = Epicaerus terrosus⁴, Epicaerus exanimis⁴, Epicaerus saxatilis⁴, Epicaerus effossus⁴, "Phyxelis evigoratus" = Epicaerus evigoratus⁴, "Scythropus subterraneus" = Epicaerus subterraneus⁴, "Phyxelis eradicatus" = Epicaerus eradicatus⁴, "Phyxelis excissus n. sp." = Epicaerus excissus⁴, "? Neoptocus sp." = Neoptochus⁴, Cryptorhynchus durus n. sp.⁴, Ophryastes grandis n. sp.⁴, Coniatus refractus⁴, Ophryastes petrarum⁴, Sitona paginarum⁴, Otiorhynchus subteractus n. sp.⁴, "Exomias obdurefactus n. sp." = Mitostylus obdurefactus⁴, Ophryastites dispertitus n. sp.⁴, Otiorhynchus flaccus n. sp.⁴, Pachylobius compressus⁴, Pachylobius depraedatus n. sp.⁴, Sciabregma rugosa n. gen. n. sp.⁴, Scythropus somniculosus n. sp.⁴, Calandrites cineratius⁴, Calandrites defessus⁴, Procas vinculatus⁴, Ceutorhynchus degravatus n. sp.⁴, Otiorhynchites tysoni⁴, Otiorhynchites commutatus n. sp.⁴, "Aulobaris anicilla n. sp." = Lithogeraeus anicilla⁴, "Aulobaris circumscripta" = Lithogeraeus circumscripta⁴, Steganus barrandei n. gen. n. sp.⁴, Phyllobius antecessor n. sp.⁴, Rhyssomatus tabescens n. sp.⁴, Cryptorhynchus annosus⁴, Syntomostylus rudis⁴, Anthonomus soporus⁴, Polygraphus wortheni n. sp.⁴, Cossonus rutus n. sp.⁴ "Eudiagogus terrosus" = Epicaerus terrosus⁴ Scudder 1878 snout beetle USGS 1055 (richest shales at summit), 117 (slightly lower) Epicaerus exanimis⁴ Scudder 1876 snout beetle USGS 262, 1004, 1042 (richest beds top of bluffs); 3, 4, 35, 961 (a few feet lower) Epicaerus saxatilis⁴ Scudder 1876 snout beetle USGS 953, 978 (near richest beds overlooking East Salt creek) Epicaerus effossus⁴ Scudder 1876 snout beetle USGS 1007(1008), 1017(1018), 1027(1028) "Phyxelis evigoratus" = Epicaerus evigoratus⁴ Scudder 1893 snout beetle USGS 960 (richest beds at summit) "Scythropus subterraneus" = Epicaerus subterraneus⁴ Scudder 1893 snout beetle USGS 943(4), 1045, 1051 (richest beds at top), 22 (near the same) "Phyxelis eradicatus" = Epicaerus eradicatus⁴ Scudder 1893 snout beetle USGS 1009(1010), 1060(1) (richest beds at summit) "Phyxelis excissus n. sp." = Epicaerus excissus⁴ Scudder 1893 snout beetle USGS 1033 (richest shales at summit) "? Neoptocus sp." = Neoptochus⁴ Horn 1876 snout beetle USGS 951 (near richest shales) Cryptorhynchus durus n. sp.⁴ Scudder 1893 snout beetle USGS 1031(1032) (richest beds at crest) Ophryastes grandis n. sp.⁴ Scudder 1893 snout beetle USGS 102 (summit of bluffs at East Salt creek) Coniatus refractus⁴ Scudder 1893 snout beetle USGS 157 (richest beds at summit) Ophryastes petrarum⁴ Scudder 1893 snout beetle USGS 338(342) (most prolific beds at crest) Sitona paginarum⁴ Scudder 1893 snout beetle USGS 182, 958, 1050 (in and near richest beds) Otiorhynchus subteractus n. sp.⁴ Scudder 1893 snout beetle USGS 54(133) (summit of bluffs at East Salt creek) "Exomias obdurefactus n. sp." = Mitostylus obdurefactus⁴ Scudder 1893 snout beetle USGS 309, 1002(3), 1005(6), 1035, 1056 (richest shales at summit); USGS 11 (near the same) Ophryastites dispertitus n. sp.⁴ Scudder 1893 snout beetle USGS 135 (richest beds at summit) Otiorhynchus flaccus n. sp.⁴ Scudder 1893 snout beetle USGS 1 (close to richest beds at summit) Pachylobius compressus⁴ Scudder 1893 snout beetle USGS 138, 166, 197, 268, 280, 948, 1040, 1049, 1052 (richest beds at crest), 63 (near same) Pachylobius depraedatus n. sp.⁴ Scudder 1893 snout beetle USGS 1043 (richest beds at crest), 23, 59, 97 (near same) Sciabregma rugosa n. gen. n. sp.⁴ Scudder 1893 snout beetle USGS 94 (uppermost layers) Scythropus somniculosus n. sp.⁴ Scudder 1893 snout beetle USGS 176 (richest beds at summit) Calandrites cineratius⁴ Scudder 1893 snout beetle USGS 49, 140, 151, 167, 206, 1019(1020), 1041, 1054 (richest beds at summit), 72, 130, 957, 1053 (near the same) Calandrites defessus⁴ Scudder 1893 snout beetle USGS 146, 185, 302 (richest beds at top) Procas vinculatus⁴ Scudder 1893 snout beetle USGS 1038(1039) (richest beds at top) Ceutorhynchus degravatus n. sp.⁴ Scudder 1893 snout beetle USGS 950 (richest beds at crest) Otiorhynchites tysoni⁴ Scudder 1893 snout beetle USGS 199 (richest beds at top) Otiorhynchites commutatus n. sp.⁴ Scudder 1893 snout beetle USGS 189 (richest beds at summit) "Aulobaris anicilla n. sp." = Lithogeraeus anicilla⁴ Scudder 1893 snout beetle USGS 935(937), 936(938), 1011(1012), 1062(1063) (richest beds at crest), 317(326) (shales in Indian trail) "Aulobaris circumscripta" = Lithogeraeus circumscripta⁴ Scudder 1893 snout beetle USGS 294, 939(940), 1044, 1058 (riches beds at crest) Steganus barrandei n. gen. n. sp.⁴ Scudder 1893 snout beetle USGS 1015(1016) (richest beds top of bluffs) Phyllobius antecessor n. sp.⁴ Scudder 1893 snout beetle USGS 264(301) (richest beds at crest) Rhyssomatus tabescens n. sp.⁴ Scudder 1893 snout beetle USGS 1026 (richest beds at summit) Cryptorhynchus annosus⁴ Scudder 1876 snout beetle USGS 947 (richest beds at top) Syntomostylus rudis⁴ Scudder 1893 snout beetle USGS 104 (near richest shales on summit) Anthonomus soporus⁴ Scudder 1890 snout beetle USGS 1048 (richest beds at summit) Polygraphus wortheni n. sp.⁴ Scudder 1893 bark beetle USGS 959 Cossonus rutus n. sp.⁴ Scudder 1893 snout beetle USGS 945(946) (uppermost layers)
Coleoptera - Belidae	? Paltorhynchus bisulcatus n. sp.⁴ ? Paltorhynchus bisulcatus n. sp.⁴ Scudder 1893 weevil USGS 295, 303 (richest beds at top of bluffs)
Coleoptera - Brentidae	"Apion evestigatum n. sp." = Apionion evestigatum⁴ "Apion evestigatum n. sp." = Apionion evestigatum⁴ Scudder 1893 weevil USGS 1029(1030) (richest beds at summit)
Coleoptera - Carabidae	Harpalus veterum n. sp. Harpalus veterum n. sp. Cockerell 1921 ground beetle USNM 66578
Odonata - Corduliidae	Stenogomphus carletoni n. gen. n. sp.³ Stenogomphus carletoni n. gen. n. sp.³ Scudder 1892 green-eyed skimmer USGS 1146(1185) found by C.E. Davis (member of Scudder's party) in 1889

¹Cockerell 1925; ²Cockerell and Sandhouse 1921; ³Scudder 1892; ⁴Scudder 1893