Dinosaur fossils in Idaho
The Paleobiology Database records 49 non-avian dinosaur finds in Idaho, from 3 genera. The oldest is Tenontosaurus from the Late Albian age, about 106.3 million years old. The youngest is Tenontosaurus from the Late Albian age, as young as about 93.9 million years. Ages are the range the database gives for the rocks, so a find can be tens of millions of years across.
- 49finds
- 3genera
- 106.3oldest, million years ago
- 93.9youngest, million years ago
It ranks 13th of 36 US states on the map by number of finds, with 1% of the finds in the United States. The most recorded dinosaurs are Oryctodromeus (8), Sauropelta (1) and Tenontosaurus (1). The rock formation with the most finds is called Wayan, with 47.
Which dinosaurs were found in Idaho?
The genera with the most finds here:
| Dinosaur | Finds |
|---|---|
| Oryctodromeus | 8 |
| Sauropelta | 1 |
| Tenontosaurus | 1 |
Rock formations with dinosaur finds in Idaho
| Formation | Finds |
|---|---|
| Wayan | 47 |
| Draney Limestone | 2 |
Other US states to explore
- Wyoming (1,040)
- Montana (985)
- New Mexico (832)
- Utah (602)
- Colorado (484)
- Texas (448)
- North Dakota (237)
- Arizona (167)
- South Dakota (167)
- New Jersey (70)
See the sea floor where marine reptiles swam: oceanfloormap.com →
Before you go fossil hunting. A dot shows where a find was recorded, not where you may dig. Many fossil sites are on private or protected land and collecting rules differ by country. Check the rules before collecting and never dig on protected sites.