Achillobator giganticus
Achillobator is a genus of large dromaeosaurid theropod dinosaur that lived during the Late Cretaceous period about 96 million to 89 million years ago in what is now the Bayan Shireh Formation of Mongolia. The genus is currently monotypic, only including the type species A. giganticus. The first remains were found in 1989 during a Mongolian-Russian field expedition and later described in 1999. Remains at the type locality of Achillobator may represent additional specimens. It represents the first and largest dromaeosaurid known from the Bayan Shireh Formation.

PaleoNeolitic · CC BY-SA 4.0 · 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
- AchillobatorPBDB
- Diet
- carnivorePBDB, for Dromaeosauridae
- Life habit
- ground dwellingPBDB, for Dromaeosauridae
- Motility
- actively mobilePBDB, for Theropoda
- Environment
- terrestrialPBDB, for Dromaeosauridae
Time the record covers
At most 17 million years on record.
The one occurrence read is dated to somewhere between 100.5 Mya and 83.6 Mya, which is a dating window rather than a span.
1 occurrence of Achillobator giganticus 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
1 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
1 formation
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The named rock units Achillobator giganticus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Achillobator giganticus and its relatives
Late CretaceousWhere Achillobator giganticus and its relatives were recorded in the Late Cretaceous.
Found in the same rock
3 taxa- Azhdarchidae1 site
- Kuhnemys orlovi1 site
- Sauropoda1 site
The Paleobiology Database records 1 site for Achillobator giganticus, and this reads all of them. The number is how many of those sites it was catalogued from too.
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
1 referenceEach of the 1 occurrence 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 the Paleobiology Database's own record for the work.
Media and terms
Media content1
Picture of Achillobator giganticus
- Source
- Wikipedia/Commons
- Credit
- PaleoNeolitic
- Licence
- CC BY-SA 4.0
- 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 itAchillobator through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Perle et al. 1999