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at the hips
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as long as 2 cars parked in a row🍌as long as 50 bananas end to end
as heavy as 100 dogs🍉as heavy as 400 watermelons🎒as heavy as 2.5 whole school classes of kids🐻❄️as heavy as 4 polar bears🏃could run 100 metres in 12 seconds (the fastest human needs 9.6)How big was Thanatotheristes compared to YOU?
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Fun facts
Thanatotheristes is the oldest tyrannosaurid dinosaur ever found in Canada.2
Its name comes from the Greek god Thanatos, meaning death, and theristes, meaning harvester.1
The only known fossil is a partial skull from a large subadult, about 80 centimeters long.2
It had a very rough, bumpy surface on its upper jaw bone, which may have been for display.2
Thanatotheristes is a close relative of Daspletosaurus, and together they form a group called Daspletosaurini.1
It lived alongside other dinosaurs like the horned Xenoceratops and the dome-headed Colepiocephale.1
Most asked questions about Thanatotheristes
?How big was Thanatotheristes?
Thanatotheristes was about 8 metres (26 feet) long, based on skull material and comparisons with related genera. Some sources say it could grow up to 10 metres (about the length of a large bus).14
?What did Thanatotheristes eat?
Thanatotheristes was a carnivore, so it ate meat. It likely preyed on large plant-eating dinosaurs like the horned Xenoceratops and the dome-headed Colepiocephale.54
?When did Thanatotheristes live?
Thanatotheristes lived about 80.1 to 79.5 million years ago, during the Late Cretaceous period. It is the oldest tyrannosaur known from Canada.14
?Where was Thanatotheristes found?
Thanatotheristes fossils were found in the Foremost Formation of Alberta, Canada. The bones were discovered along the Bow River near the town of Hays.15
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Myth buster
Myth: Thanatotheristes was the biggest tyrannosaur ever.
Truth: It was smaller than later tyrannosaurs like Tyrannosaurus rex, only about 8 to 9 meters long.1
For dino experts
- Scientific name
- Thanatotheristes
- Named by
- Voris et al. 20206
- Group
- Tyrannosaurs
- Family / clade
- Tyrannosauridae6
- Classification
- Theropoda > Tyrannosauroidea > Tyrannosauridae6
- Age of the rocks
- 84 to 72 million years (Campanian)6
- Rock formations
- Foremost6
- Countries
- Canada6
- Fossil records
- 2 in the Paleobiology Database6
- Discovery
- The fossil was found by John and Sandra De Groot on the shore of the Bow River in Alberta, Canada. Scientists named it in 2020.12
- Still debated
- Scientists are not sure if Thanatotheristes should actually be considered a species of Daspletosaurus instead of its own genus.1
Where the facts come from
- Thanatotheristes (en.wikipedia.org)
- ucalgary.scholaris.ca (ucalgary.scholaris.ca)
- 'Reaper of death,' newfound cousin of T. rex, discovered in Canada | Live Science (livescience.com)
- Thanatotheristes | The Canadian Encyclopedia (thecanadianencyclopedia.ca)
- New, large meat-eating dinosaur discovered in Alberta | News | University of Calgary (science.ucalgary.ca)
- Thanatotheristes in The Paleobiology Database (CC BY 4.0): age, places, rock formations, classification.
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Tyrannosaurus
Tarbosaurus
Albertosaurus
Daspletosaurus
Gorgosaurus
Alectrosaurus
Triceratops
Velociraptor
Spinosaurus
Ankylosaurus
Parasaurolophus
Pteranodon