Koleken inakayali
Koleken is a genus of carnotaurin abelisaurid from the Maastrichtian La Colonia Formation in the Chubut Province of Argentina. The genus contains a single species, Koleken inakayali, known from one immature specimen about 4.97 metres (16.3 ft) long and six years old in minimum age.

Amalia Villafañe (photographer) · CC BY 2.5 ar · 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
- KolekenPBDB
- Diet
- carnivorePBDB, for Theropoda
- Life habit
- ground dwelling, solitaryPBDB, for Theropoda
- Motility
- actively mobilePBDB, for Theropoda
- Environment
- terrestrialPBDB, for Theropoda
Time the record covers
At most 6.2 million years on record.
The one occurrence read is dated to somewhere between 72.2 Mya and 66 Mya, which is a dating window rather than a span.
1 occurrence of Koleken inakayali 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 Koleken inakayali has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Koleken inakayali and its relatives
Late CretaceousWhere Koleken inakayali and its relatives were recorded in the Late Cretaceous.
Found in the same rock
No other named taxon is catalogued from that site.
The Paleobiology Database records 1 site for Koleken inakayali, and this reads all of them.
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 doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1
Picture of Koleken inakayali
- Source
- Wikipedia/Commons
- Credit
- Amalia Villafañe (photographer)
- Licence
- CC BY 2.5 ar
- Commercial use
- the licence allows it
No 3D scan of Koleken inakayali was found in MorphoSource and Sketchfab.
Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.
The description on this site
- Source
- Wikipedia, “Koleken”
- 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 itKoleken through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Pol et al. 2024