Genus: Heleocola EBERLE, COHEN, FOSTER, HUNT-FOSTER & HECKERT, 2024
Etymology: Greek, heleo, "marsh or swamp", in reference to the depositional environment of the Williams Fork Formation, and Latin, cola, "dweller or inhabitant."

Species: piceanus (COHEN, DAVIS & CIFELLI, 2020 [published 2021]) EBERLE, COHEN, FOSTER, HUNT-FOSTER & HECKERT, 2024
Etymology: In reference to Piceance Basin, from where the specimens were recovered.
= Glasbius piceanus (COHEN, DAVIS & CIFELLI, 2020 [published 2021])

Holotype: UCM 57354

Locality: Arrowhead Anthill #1 (UCM Locality 86018), Douglas Creek Arch, Rio Blanco County, Colorado.

Horizon: Williams Fork Formation.

Biostratigraphy:

Age: Edmontonian, Late Campanian-Early Maastrichtian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.

Material: Right m3.

Referred material:

Locality: J&M Site (MWC locality L-2012-13), Douglas Creek Arch, Rio Blanco County, Colorado.

Horizon: Williams Fork Formation.

Biostratigraphy:

Age: Edmontonian, Late Campanian-Early Maastrichtian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.

Material:

MWC 9744: Incomplete left dentary with partial m1, and m2-m3.

 

Locality: Lower Trapper (UCM Locality 76003), Douglas Creek Arch, Rio Blanco County, Colorado.

Horizon: Williams Fork Formation.

Biostratigraphy:

Age: Edmontonian, Late Campanian-Early Maastrichtian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.

Material:

UCM 75350: RM2 or m3.

 

Locality: Dragonview Quarry (UCM Locality 93025), Douglas Creek Arch, Rio Blanco County, Colorado.

Horizon: Williams Fork Formation.

Biostratigraphy:

Age: Edmontonian, Late Campanian-Early Maastrichtian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.

Material:

UCM 57491: Lm1.