PBDB Collection

Grassy Lake, Medicine Hat (TMP 82-15 accession) (Cretaceous of Canada)

Also known as Canadian amber

Where: Alberta, Canada (49.8° N, 111.7° W: paleocoordinates 57.2° N, 76.9° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Taber coal Member (Foremost Formation), Middle Campanian (83.5 - 70.6 Ma)

• Foremost Formation is likely middle Campanian in age, see Fowler et al. 2017 supplementary data for more details on age constraints of the Foremost Formation.

Environment/lithology: terrestrial; amber

• Primary amber deposits in are found along bedding planes in coal or carbonaceous sediments.

Size class: macrofossils

Preservation: soft parts, original chitin, original carbon, amber

Reposited in the TMP

Collection methods: surface (float)

• Royal Tyrrell Museum of Palaeontology, Drumheller, Alberta, Canada, specimens with accession numbers 82-15-x

Primary reference: B. V. Brown and E. M. Pike. 1990. Three new fossil phorid flies (Diptera: Phoridae) from Canadian Late Cretaceous amber. Canadian Journal of Earth Sciences 27:845-848 [A. Behrensmeyer/A. Behrensmeyer/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 122388: authorized by Matthew Clapham, entered by Matthew Clapham on 23.12.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Insecta
Coleoptera - Staphylinidae	Palaeoleptochromus schaufussi n. gen. n. sp.⁴ Palaeoleptochromus schaufussi n. gen. n. sp.⁴ O'Keefe 1997 antlike stone beetle TMP 82-15-4.5
Diptera - Ceratopogonidae	Ceratopogonidae indet.², Culicoides tyrrelli¹, Culicoides bullus¹, Culicoides filipalpis¹, Peronehelea chrimikalydia¹, Palaeobrachypogon aquilonius¹, Atriculicoides globosus², Heleageron arenatus¹ Ceratopogonidae indet.² Newman 1834 biting midge TMP 82.15.89 Culicoides tyrrelli¹ Boesel 1937 biting midge TMP 82-15-22a Culicoides bullus¹ Borkent 1995 biting midge TMP 82-15-20, 82-15-90 Culicoides filipalpis¹ Remm 1976 biting midge TMP 82-15-40 (3 specimens) Peronehelea chrimikalydia¹ Borkent 1995 biting midge TMP 8215-74, 82-15-114 Palaeobrachypogon aquilonius¹ Boesel 1937 biting midge TMP 82-15-33 Atriculicoides globosus² Boesel 1937 biting midge TMP 82.15.81 Heleageron arenatus¹ Borkent 1995 biting midge TMP 82-15-129
Diptera - Phoridae	"Prioriphora intermedia" = Maksika intermedia, Prioriphora longicostalis n. sp. "Prioriphora intermedia" = Maksika intermedia Brown and Pike 1990 scuttle fly TMP 82-15-1, 82-15-82 Prioriphora longicostalis n. sp. Brown and Pike 1990 scuttle fly TMP 82-15-46
Collembola
Entomobryomorpha - Isotomidae	Protoisotoma sp.³, Protoisotoma micromucra³ Protoisotoma sp.³ Christiansen and Pike 2002 springtail TMP 82.15.53 (2 specimens) Protoisotoma micromucra³ Christiansen and Pike 2002 springtail TMP 82.15.53 (2 specimens)

¹Borkent 1995; ²Borkent 2012; ³Christiansen and Pike 2002; ⁴O'Keefe et al. 1997