What deep time
sells for.
Market prices for fossils — by species, size, and quality — tracked across dealers and auction houses since 2019.
retail listing
sold
auction result
monthly median
Specimens
| Specimen | Material | Quality | Size | Latest price | Kind | Date | Source |
|---|
Price evolution
Fossil valuation
Condition
Estimated market value
–
Closest tracked specimens
Deal finder
How the curve is fit
On the market now — best deals first
| Listing | Element / Quality | Size | Price | Typical | Vs. typical | Source |
|---|
Ammonites fossil prices
The typical Ammonites fossil sells for $129, with most changing hands between $45 and $395. Based on 6,963 prices observed across dealers and auction houses since 2019.
Ammonites price history by year
| Year | Median price | Prices tracked |
|---|---|---|
| 2019 | $245 | 595 |
| 2020 | $425 | 226 |
| 2021 | $455 | 332 |
| 2022 | $995 | 95 |
| 2023 | $585 | 346 |
| 2024 | $545 | 258 |
| 2025 | $495 | 247 |
| 2026 | $69 | 4,864 |
Recently tracked Ammonites specimens
| Specimen | Size | Price | Seen |
|---|---|---|---|
| 12" Ammonite Fossil with Mosasaur Bite Marks - Precious Ammolite! | 12 in | $27,500 | 2026-10-04 |
| 12.6" Green-Blue Ammonite Preserved In Ammolite - Canada | 12.6 in | $19,500 | 2026-10-04 |
| Septarian With Orange Calcite & Partial Ammonite - "The Raven" partial | — | $8,500 | 2026-10-04 |
| 7.3" Cretaceous Heteromorph Ammonite (Didymoceras) - South Dakota | 7.3 in | $4,495 | 2026-10-04 |
| Ten Iridescent Ammonite (Psiloceras) Fossils On Shale - England | — | $1,950 | 2026-10-04 |
| 15" Massive, White Ammonite Fossil (68 Lbs) - Madagascar | 15 in | $1,450 | 2026-10-04 |
| 16.2" Huge Jurassic Ammonite (Kranosphinctes) Fossil - Madagascar | 16.2 in | $1,450 | 2026-10-04 |
| 11.4" Jurassic Ammonite (Polyplectus & Hildoceras) Display | 11.4 in | $1,295 | 2026-10-04 |
How much are Ammonites worth?
Size drives most of the price. For a figure on a specific specimen, the valuation tool fits the same model to its size, condition and variety. Every number behind this page is a listed or realised price, re-scraped weekly; the methodology sets out how they're fitted.