Kaikaifilusaurus

Kaikaifilusaurus is an extinct genus of rhynchocephalians in the family Sphenodontidae from the Early Cretaceous of South America. Fossils of the genus were found in the Candeleros Formation, Huincul Formation, and Cerro Barcino Formation in Patagonia, Argentina. The genus contains two species, K. minimus and the type species K. calvoi.

No picture of Kaikaifilusaurus was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Kaikaifilusaurus, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
EilenodontinaePBDB
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Amniota

Time the record covers

At least 3.1 million years on record.

The record covers at least 113.2 Mya to 110.1 Mya. No occurrence read is dated outside 119.57 Mya to 106.3 Mya.

Early Cretaceous — about 5 of 5 occurrencesEarly Cretaceous120–119 Mya — about 0.1 occurrences119–119 Mya — about 0.1 occurrences119–118 Mya — about 0.1 occurrences118–118 Mya — about 0.1 occurrences118–117 Mya — about 0.1 occurrences117–117 Mya — about 0.1 occurrences117–116 Mya — about 0.1 occurrences116–116 Mya — about 0.1 occurrences116–115 Mya — about 0.1 occurrences115–115 Mya — about 0.1 occurrences115–114 Mya — about 0.1 occurrences114–114 Mya — about 0.1 occurrences114–113 Mya — about 0.1 occurrences113–113 Mya — about 0.2 occurrences113–112 Mya — about 0.3 occurrences112–112 Mya — about 0.3 occurrences112–112 Mya — about 0.3 occurrences112–111 Mya — about 0.3 occurrences111–111 Mya — about 0.3 occurrences111–110 Mya — about 0.3 occurrences110–110 Mya — about 0.1 occurrences110–109 Mya — about 0.1 occurrences109–109 Mya — about 0.1 occurrences109–108 Mya — about 0.1 occurrences108–108 Mya — about 0.1 occurrences108–107 Mya — about 0.1 occurrences107–107 Mya — about 0.1 occurrences107–106 Mya — about 0.1 occurrences113.2 Mya110.1 Mya120.1 Mya105.8 Mya

5 occurrences of Kaikaifilusaurus on record, most of them in the Early 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

5 occurrences

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

3 formations

Candeleros — 39.62°S, 69.35°WCandeleros — 39.63°S, 68.70°WCerro Barcino — 43.15°S, 68.43°WCerro Barcino — 43.13°S, 68.47°WHuincul — 39.40°S, 68.62°W

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The named rock units Kaikaifilusaurus has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Kaikaifilusaurus and its relatives

Early Cretaceous

Where Kaikaifilusaurus and its relatives were recorded in the Early Cretaceous.

Found in the same rock

22 taxa

The Paleobiology Database records 5 sites for Kaikaifilusaurus, 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

4 references

Each of the 5 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. 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 content0

No picture of Kaikaifilusaurus was found. Wikipedia, Wikidata and iDigBio were searched and had none.

Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Kaikaifilusaurus, or no answer at all. This entry cannot say which.

No 3D scan of Kaikaifilusaurus 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 itEilenodontinae through timeFormations of the Early CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Simon and Kellner 2003