Nugget Sandstone
The Nugget Sandstone is a Late Triassic to Early Jurassic geologic formation that outcrops in Colorado, Idaho and Utah, western United States. Fossil theropod tracks have been reported from the formation.Intermediate theropod, sphenosuchian, drepanosaurid and sphenodontian remains are known.
;Other fossils
- Rhynchosauroides sp.
- Lepidosauria indet.
Ichnofossils
- Batrachopus sp.
- Brachychirotherium sp.
- Brasilichnium sp.
- Cochlichnus sp.
- Diplichnites sp.
- Grallator
- Gwyneddichnium sp.
- Octopodichnus sp.
- Otozoum sp.
- cf. Paleohelcura sp.
- Pterichnus sp.
- Scoyenia sp.
- Treptichnus sp.
- ?Acanthichnus sp.
- ?Apatopus sp.
