Albertosaurinae
Albertosaurines, or dinosaurs of the subfamily Albertosaurinae, lived in the Late Cretaceous of United States and Canada. The subfamily was first used by Philip J. Currie, Jørn H. Hurum, and Karol Sabath as a group of tyrannosaurid dinosaurs. It was originally defined as "(Albertosaurus + Gorgosaurus)", including only the two genera. The group is the sister clade to Tyrannosaurinae. In 2007, it was found that the group also contained Maleevosaurus, often synonymized with Tarbosaurus. However, this classification has not been accepted and Maleevosaurus is still considered a juvenile Tarbosaurus or Tyrannosaurus.

FunkMonk · CC BY-SA 3.0 · via Wikipedia/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
- TyrannosauridaePBDB
- 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 20 million years on record.
Every occurrence read is dated to somewhere between 85.7 Mya and 66 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
53 occurrences of Albertosaurinae 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
53 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
13 formations
- Horseshoe Canyon Formation · Edmonton Group19
- Dinosaur Park Formation · Belly River Group13
- Judith River Formation · Montana Group3
- Oldman Formation · Belly River Group2
- Judith River Formation · Montana Group2
- Hell Creek Formation · Montana Group2
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The named rock units Albertosaurinae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 4 occurrences have no formation on record, which is common for older literature.
Albertosaurinae and its relatives
Late CretaceousWhere Albertosaurinae and its relatives were recorded in the Late Cretaceous.
Found in the same rock
259 taxa- Albertosaurus sarcophagus17 sites
- Albertosaurus15 sites
- Gorgosaurus libratus15 sites
- Hadrosauridae15 sites
- Champsosaurus8 sites
- Crocodylia7 sites
- Troodon7 sites
- Ceratopsidae6 sites
- Myledaphus6 sites
- Gorgosaurus5 sites
- Testudines5 sites
- Theropoda5 sites
- Ankylosauridae4 sites
- Anura4 sites
- Atrociraptor marshalli4 sites
- Chelydridae4 sites
- Myledaphus bipartitus4 sites
- Anodontosaurus lambei3 sites
- Baenidae3 sites
- Brachychampsa montana3 sites
- Dromaeosaurus albertensis3 sites
- Edmontosaurus3 sites
- Edmontosaurus regalis3 sites
- Leidyosuchus3 sites
The Paleobiology Database records 53 sites for Albertosaurinae, 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
38 references- Tyrannosaurs from the Late Cretaceous of western Canada8
- A history of Albertosaurus discoveries in Alberta, Canada7
- Baby tyrannosaurid bones and teeth from the Late Cretaceous of western North America 12
- Tyrannosaurus and other Cretaceous carnivorous dinosaurs2
- A review of the dinosaurian record from Mexico1
- Chronister vertebrate site1
- Fossil Vertebrate Collections1
- Alberta's dinosaurs and other fossil vertebrates: Judith River and Edmonton groups (Campanian-Maastrichtian)1
- Possible evidence of gregarious behavior in tyrannosaurids1
- A new local fauna, the Willow Wash Local Wash, from the Upper Cretaceous (Campanian), Kirtland Formation, New Mexico1
- Taphonomy of a hadrosaur (Ornithischia: Hadrosauridae) bone bed from the Horseshoe Canyon Formation (early Maastrichtian), Alberta, Canada1
- Taphonomy of a Centrosaurus (Ornithischia: Ceratopsidae) bone bed from the Dinosaur Park Formation (upper Campanian), Alberta, Canada1
Each of the 53 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. 26 further references are not listed. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1
Picture of Albertosaurinae
- Source
- Wikipedia/Commons
- Credit
- FunkMonk
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
The description on this site
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itTyrannosauridae through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Currie et al. 2003