Daspletosaurus horneri

James St. John · CC BY 2.0 · via Wikidata/Commons. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.
On record
Recorded, not inferred- Sits inside
- DaspletosaurusPBDB
- Diet
- carnivorePBDB, for Coelurosauria
- Life habit
- ground dwelling, solitaryPBDB, for Theropoda
- Motility
- actively mobilePBDB, for Theropoda
- Environment
- terrestrialPBDB, for Theropoda
Time the record covers
At most 12 million years on record.
Every occurrence read is dated to somewhere between 83.6 Mya and 72.2 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
6 occurrences of Daspletosaurus horneri on record, most of them in the Late Cretaceous. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.
When
6 occurrences- Late Cretaceous100%
These are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.
Found in
2 formations
- Two Medicine Formation · Montana Group5
- Dinosaur Park Formation · Belly River Group1
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The named rock units Daspletosaurus horneri has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Daspletosaurus horneri and its relatives
Late CretaceousWhere Daspletosaurus horneri and its relatives were recorded in the Late Cretaceous.
Found in the same rock
47 taxa- Lambeosaurinae3 sites
- Ankylosauria2 sites
- Hadrosauridae2 sites
- Prosaurolophus maximus2 sites
- Achelousaurus horneri1 site
- Amphibia1 site
- Ankylosauridae1 site
- Anura1 site
- Azhdarchidae1 site
- Bambiraptor feinbergi1 site
- Basilemys1 site
- Campeloma1 site
- Carnosauria1 site
- Ceratopsia1 site
- Champsosauridae1 site
- Charophyta1 site
- Chelydridae1 site
- Crocodylia1 site
- Dinosauria1 site
- Dromaeosauridae1 site
- Gastropoda1 site
- Gettyia gloriae1 site
- Gryposaurus1 site
- Hadrosaurinae1 site
The Paleobiology Database records 6 sites for Daspletosaurus horneri, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.
This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.
Entered from
4 references- A new tyrannosaur with evidence for anagenesis and crocodile-like facial sensory system3
- First occurrence of Daspletosaurus horneri (Tyrannosauridae, Tyrannosaurinae) in the Dinosaur Park Formation of Dinosaur Provincial Park, Alberta (Treaty 7 Territory)1
- Baby tyrannosaurid bones and teeth from the Late Cretaceous of western North America 11
- Geology and taphonomy of a unique tyrannosaurid bonebed from the upper Campanian Kaiparowits Formation of southern Utah: implications for tyrannosaurid gregariousness1
Each of the 6 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1

Picture of Daspletosaurus horneri
- Source
- Wikidata/Commons
- Credit
- James St. John
- Licence
- CC BY 2.0
- Commercial use
- the licence allows it
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itDaspletosaurus through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Carr et al. 2017