Oksoko avarsan
Oksoko is a genus of oviraptorid dinosaur from the Late Cretaceous of Asia, that lived in what is now the Nemegt Formation in Mongolia. It includes the type species Oksoko avarsan.

Gregory F. Funston, Tsogtbaatar Chinzorig, Khishigjav Tsogtbaatar, Yoshitsugu Kobayashi, Corwin Sullivan & Philip J.… · CC BY 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
- OksokoPBDB
- Diet
- omnivorePBDB, for Oviraptorosauria
- Life habit
- ground dwelling, depth=surfacePBDB, for Oviraptorosauria
- Motility
- actively mobilePBDB, for Oviraptorosauria
- Environment
- terrestrialPBDB, for Oviraptorosauria
Time the record covers
At most 6.2 million years on record.
Every occurrence read is dated to somewhere between 72.2 Mya and 66 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
3 occurrences of Oksoko avarsan 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
3 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 Oksoko avarsan has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Oksoko avarsan and its relatives
Late CretaceousWhere Oksoko avarsan and its relatives were recorded in the Late Cretaceous.
Found in the same rock
36 taxa- Crocodylia2 sites
- Gallimimus2 sites
- Mongolemys2 sites
- Mongolochelys efremovi2 sites
- Sauropoda2 sites
- Tarbosaurus2 sites
- Testudinata2 sites
- Theropoda2 sites
- Ankylosauria1 site
- Ankylosauridae1 site
- Anserimimus planinychus1 site
- Avimimus portentosus1 site
- Bivalvia1 site
- Deinocheirus mirificus1 site
- Dendroolithidae1 site
- Dinosauria1 site
- Dromaeosauridae1 site
- Elmisaurus1 site
- Elmisaurus rarus1 site
- Elongatoolithus1 site
- Gastropoda1 site
- Lacertilia1 site
- Mongolemys elegans1 site
- Mononykus1 site
The Paleobiology Database records 3 sites for Oksoko avarsan, 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
1 referenceEach of the 3 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 Oksoko avarsan
- Source
- Wikipedia/Commons
- Credit
- Gregory F. Funston, Tsogtbaatar Chinzorig, Khishigjav Tsogtbaatar, Yoshitsugu Kobayashi, Corwin Sullivan & Philip J.…
- Licence
- CC BY 4.0
- Commercial use
- the licence allows it
No 3D scan of Oksoko avarsan was found in Sketchfab.
Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.
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 itOksoko through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Funston et al. 2020