AI-created reconstruction · appearance is interpretiveMEET THE GENUS / Tyrannosaurus
Tyrannosaurus rex
Tyrannosaurus rex is the illustrated example for this genus search. Collection identifications and age estimates can be revised.
THE FIELD SCHOOLFossil explorer.
Fossil explorer.
Follow the evidence.
Follow fossils through time. Listen closely. Learn to ask better questions.
Past. Present. Possibility.Evidence first.
Curiosity always.
Curiosity always.
Fossils are clues, not a complete map.
23 collection entries from six genus searches in the Paleobiology Database. A small educational snapshot, checked 2026-10-09.
A GUIDED EXPEDITION / SIX DISCOVERIES
Let curiosity choose your next stop.
Travel through six collection records, from dinosaur genera to Mammuthus. Stops are curated, not a linear timeline or an ancient migration route.
23 collection entries · Ma = millions of years ago
YOUR DISCOVERY PASSPORT
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0 / 6 expedition stops visited · 0 saved collections
1Diplodocus not yet visited2Stegosaurus not yet visited3Velociraptor not yet visited4Tyrannosaurus not yet visited5Triceratops not yet visited6Mammuthus not yet visited
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SCENERY / Cretaceous-inspiredRiver floodplain
Illustrative environments, not reconstructions of the selected locality. Collection ages and evidence remain in the notes below.An open riverbank beneath a luminous, clouded sky.
THE PREHISTORIC OBSERVATORYTurn the world. Follow a discovery.
Bringing the world into focus…
TyrannosaurusKnudsen's Coulee (NMC 9954)
MODERN EARTH · ROUNDED LOCATIONSDrag to orbit · Scroll / pinch to zoom
Artistic prehistoric sky · not an ancient Earth reconstruction
Artistic prehistoric sky · not an ancient Earth reconstruction
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AI-created reconstruction · appearance is interpretiveCOLLECTION / 11917
Knudsen's Coulee (NMC 9954)
- Genus search
- Tyrannosaurus
- Present-day region
- Alberta · Canada
- Formation
- Scollard
- Reported collection interval
- Late Maastrichtian · 66–72.2 Ma
Follow the discovery reference.
D. A. Russell. 1970. Tyrannosaurs from the Late Cretaceous of western Canada. National Museum of Natural Sciences, Publications in Paleontology 1:1-34
Open PBDB collectionView original data responseHow to read a fossil discovery
Read the interval
The age range describes a collection record and its rocks. It is not an exact birth-to-death date for an animal. Overlapping ranges do not prove animals lived together.
Separate place from habitat
The globe shows rounded present-day coordinates. Ancient coastlines and continents were different; the artistic skybox is not evidence for the locality’s ancient environment.
Follow the reference
A genus identification is a starting point. Open the PBDB record and its research reference to inspect the evidence; identifications and geological estimates can change.
Understand the snapshot
This is a small curated collection, not all known fossils. Some collection sites appear under multiple genera.
Locations use modern coordinates rounded to 0.1°, not reconstructed ancient continents or access directions. Ages are PBDB collection ranges, not exact animal lifetimes; taxonomy, reworked material, and interval estimates can be revised. The genus Mammuthus includes mammoths beyond the woolly mammoth. Some collections appear under more than one genus search. Data: Paleobiology Database contributors, CC BY 4.0; filtered, fields selected, and coordinates rounded.