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Allosaurus
U.S. private land + docsApex Morrison Formation predator. Private-quarry and ranch material supplies the legitimate commercial market; federal Morrison exposures are not dig-to-sell sites.
Sample photoPeriod
Late Jurassic
Age
155–145 mya
Formation
Morrison
Diet
Carnivore
Common fossils
Teeth, bones, skulls
Price context
Teeth hundreds–thousands; skulls / mounts much higher
Price bands are educational market context for common grades — not an appraisal, quote, or investment forecast.
Collecting status
U.S. private land + docs. Always confirm landowner release or export path, chain of custody, and that the specimen was not collected from forbidden public land. U.S. federal vertebrates under PRPA are not commercial inventory.
Open related fossil-law guide →Trade notes
Serrated blade teeth. Confirm Morrison private-land path — Colorado, Utah, Wyoming ranches differ from monument / BLM stories.
Fake-watch for this taxon
- — Cast teeth
- — Composite dentaries
- — Mislabelled allosauroid teeth
Documents to demand
- — Landowner release
- — Formation + county
- — Restoration %
On Jurassic Depot
Fossil laws by countryU.S. fossil lawsProvenance guideFossil laws briefingHow to buy fossils legally
Outside sources (educational)
Primary society and government pages — not Jurassic Depot. Open these when you need statute or agency language, not a marketplace summary.