Aniksosaurus darwini
Aniksosaurus is a genus of avetheropod dinosaur from what is now Chubut Province, Argentina. It lived during the Cenomanian to Turonian of the Cretaceous period, between 96-91 million years ago. The type species, Aniksosaurus darwini, was formally described from the Bajo Barreal Formation of the Golfo San Jorge Basin by Rubén Dario Martínez and Fernando Emilio Novas in 2006; the name was coined in 1995 and reported in the literature in 1997. The specific epithet honors Charles Darwin who visited Patagonia in 1832/1833 during the Voyage of the Beagle.

Lucio M. Ibiricu, Rubén D. Martínez, Gabriel A. Casal, Ignacio A. Cerda · CC BY 2.5 · 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
- AniksosaurusPBDB
- 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 11 million years on record.
The one occurrence read is dated to somewhere between 100.5 Mya and 89.8 Mya, which is a dating window rather than a span.
1 occurrence of Aniksosaurus darwini 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
- Bajo Barreal Formation · Chubut Group1
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The named rock units Aniksosaurus darwini has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Aniksosaurus darwini and its relatives
Late CretaceousWhere Aniksosaurus darwini and its relatives were recorded in the Late Cretaceous.
Found in the same rock
1 taxonThe Paleobiology Database records 1 site for Aniksosaurus darwini, 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 doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1
Picture of Aniksosaurus darwini
- Source
- Wikipedia/Commons
- Credit
- Lucio M. Ibiricu, Rubén D. Martínez, Gabriel A. Casal, Ignacio A. Cerda
- Licence
- CC BY 2.5
- Commercial use
- the licence allows it
No 3D scan of Aniksosaurus darwini 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 itAniksosaurus through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Martínez and Novas 2006