Ichnospecies: sanjuanensis FOSTER & LOCKELY, 1997
Etymology: After San Juan County, Utah.
Holotype: CU-MWC 197./1, 197.2
Locality: Gray Daun Mine, along Two Mile Creek on the east slope of the La Sal Mountains, San Juan County, Utah.
Horizon: Salt Wash Member, Morrison Formation.
Biostratigraphy: Zone 2.
Age: Comobluffian age, Kimmeridgian Stage, uppermost Malm Epoch, Late Jurassic.
Material:
CU-MWC 197.1: Cast of left pes impression, digits only.
CU-MWC 197.2: Cast of left manus digits I-III and associated possible tail impression.
Referred material:
Locality: Garden Park, Fremont County, Colorado.
Horizon: Salt Wash Member, Morrison Formation.
Biostratigraphy: Zone 2.
Age: Comobluffian age, Kimmeridgian Stage, uppermost Malm Epoch, Late Jurassic.
Material:
CM 924: Cast of left pes impression, digits only, a slightly smaller track figured by Hatcher, 1903.