Site 1 (near confluence of Blindman and Red Deer Rivers) (Paleocene of Canada)

Also known as Blackfalds

Where: Alberta, Canada (52.4° N, 113.8° W: paleocoordinates 58.7° N, 90.8° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Paskapoo Formation, Tiffanian (61.7 - 56.8 Ma)

• "The fossiliferous layer, ranging in thickness from 5 to 10 cm, is a fine-grained argillaceous limestone of I part hydromica to 2 parts calcite, It overlies a coal seam of varied thickness." Mitchell & Wighton, 1979

Environment/lithology: pond; lithified, fine-grained, argillaceous limestone

• Unlike many lacustrine sediments, the matrix shows no laminations, Hickey and Peterson (1978) suggest the Blackfalds site was once a forested backswamp; the absence of fish remains and the presence of mollusc shells (predominantly Physa spp,) and a few water lilies support this suggestion
• fine-grained matrix

Size classes: macrofossils, mesofossils

Preservation: mold/impression, adpression

Primary reference: P. Mitchell and D. Wighton. 1979. Larval and adult insects from the Paleocene of Alberta, Canada. The Canadian Entomologist 111:777-782 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 119816: authorized by Matthew Clapham, entered by Jered Karr on 02.11.2011, edited by Matthew Clapham and Patricia Holroyd

Creative Commons license: CC BY (attribution)

Taxonomic list

• Specimens deposited in UAPC ( University of Alberta Paleontological Collections
Insecta
 Hemiptera - Cixiidae
Cixiidae indet. Spinola 1839 cixiid planthopper
 Hemiptera - Cercopidae
Cercopidae indet. Leach 1815 froghopper
 Hemiptera - Pentatomidae
? Pentatomidae indet. Leach 1815 stink bug
 Hemiptera - Belostomatidae
? Belostomatidae indet. Leach 1815 giant water bug
UAPC 6150
 Dicondylia -
? Orthoptera indet. Olivier 1789 grasshopper
 Hymenoptera - Formicidae
Napakimyrma paskapooensis n. gen. n. sp.3
Napakimyrma paskapooensis n. gen. n. sp.3 LaPolla and Barden 2018 ant
 Coleoptera - Helodidae
? Helodidae indet. Shuckard 1839 beetle
UAPC 5528, 5518
 Coleoptera - Tenebrionidae
Tenebrionidae indet. Latreille 1802 darkling beetle
 Coleoptera - Chrysomelidae
Donacia (Donacia) wightoni n. sp.1 Askevold 1990 leaf beetle
UAPC 5566(407), 5560(200), 5561(161), 5564(300), 5566(401), 5566(410)
 Coleoptera - Curculionidae
Curculionidae indet. Latreille 1802 snout beetle
 Coleoptera - Dytiscidae
Dytiscidae indet. Leach 1815 predaceous diving beetle
 Coleoptera - Noteridae
? Noteridae indet. Thomson 1860 burrowing water beetle
UAPC 6151, 5526
 Coleoptera - Carabidae
Carabidae indet. Latreille 1802 ground beetle
 Dicondylia -
? Diptera indet. Linnaeus 1758 fly
 Diptera - Tipulidae
Tipulinae indet.4 Latreille 1802 crane fly
UAPC 5559 male pupa
Tipula tubifera n. sp.4 Wighton 1980 crane fly
UAPC 6166 collected 13 August 1977
Limnophila marklae n. sp.4 Wighton 1980 crane fly
UAPC 5568
Pseudolimnophila speirsae n. sp.4 Wighton 1980 crane fly
UAPC 6171
 Dicondylia -
Ephemeroptera indet. Hyatt and Arms 1890 mayfly
UAPC 5569
 Odonata - Gomphaeschnidae
Alloaeschna paskapooensis n. gen. n. sp.5 Wighton and Wilson 1986 true dragonfly
UAPC 6189
Alloaeschna marklae n. sp.5 Wighton and Wilson 1986 true dragonfly
UAPC 5553 collected by P. Mitchell , 1977
Reptilia
 Testudines - Panchelydridae