Ichnospecies: untermannorum LOCKLEY, HUNT, PAQUETTE, BILBEY & HAMBLIN,
1998
Etymology: In honor of Billie Rupel Untermann and George Ernest Untermann Jr.
and their contributions to the geology of northeast Utah.
Holotype: CU-MWC 184.12
Locality: Southeast of Quarry at Dinosaur National Monument (exact locality on file at CU Denver, and at Utah Field House of Natural History, Vernal), Jensen County, Utah.
Horizon: Resistant sandstone in upper part of Carmel Formation.
Biostratigraphy:
Age: Bajocian-Bathonian Stage, Middle Dogger Epoch, Middle Jurassic.
Material: A replica of the first three footprints in a partial trackway of 5 consecutive tracks. The 4th partial footprint in sequence was also collected and is designated as CU-MWC 184.12a.
Referred material:
CU-MWC 184.11: 2 trackways and 1 unknown vertebrate.
CU-MWC 184.13: 5 dinosaur trackways.
CU-MWC 184.14: 1 track.
CU-MWC 184.15: 1 track.
CU-MWC 184.16a, b: 2 tracks.
CU-MWC 184.17-19: 3 tracks.
CU-MWC 184.20: 4 tracks comprising 2 trackways.
CU-MWC 184.21: 1 track.
UFHNH 88.20.1, 20.2: Large and small tracks on display.
UFHNH 88.20.3: Small tracks.
UFHNH 88.20.4: Slab with 5 tracks.
UFHNH 88.20.5: Slab with 2 tracks forming step on display.
Jensen Private collection: 14 trackways.
Locality: Red Fleet Locality, Jensen County, Utah.
Horizon: Lower level.
Biostratigraphy:
Age: Bajocian-Bathonian Stage, Middle Dogger Epoch, Middle Jurassic.
Material:
UFHNH 88.17.1: Large slab on display, 9 trackways.
UFHNH 88.17.2: 1 track on display, upper level?
UFHNH 88.17.3a,b: 2 tracks.
UFHNH 88.17.4-6: 3 tracks.