Ikamauius

Ikamauius is an extinct genus of sawshark from the Cenozoic of New Zealand. It contains a single species, I. ensifer. It is most closely related to the extant Pliotrema, but is distinguished by the presence of barbs on both sides of its rostral denticles.

No picture of Ikamauius 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 Ikamauius, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
PliotrematinaePBDB
Diet
carnivorePBDB, for Pristiophoriformes
Life habit
nektobenthicPBDB, for Pristiophoriformes
Motility
actively mobilePBDB, for Pristiophoriformes

Time the record covers

At least 68 million years on record.

The record covers at least 72.2 Mya to 3.7 Mya. No occurrence read is dated outside 83.6 Mya to 3 Mya.

Late Cretaceous — about 1 of 10 occurrencesLate CretaceousPaleocene — about 0 of 10 occurrencesEocene — about 0 of 10 occurrencesOligocene — about 2 of 10 occurrencesOligoceneMiocene — about 3 of 10 occurrencesMiocenePliocene — about 4 of 10 occurrencesPleistocene — about 0 of 10 occurrences85–82 Mya — about 0.1 occurrences82–80 Mya — about 0.2 occurrences80–77 Mya — about 0.2 occurrences77–74 Mya — about 0.2 occurrences74–71 Mya — about 0.2 occurrences29–27 Mya — about 0.2 occurrences27–24 Mya — about 1 occurrence24–21 Mya — about 2 occurrences21–18 Mya — about 0.3 occurrences18–15 Mya — about 0.3 occurrences15–13 Mya — about 0.3 occurrences13–9.8 Mya — about 0.3 occurrences9.8–7.0 Mya — about 0.3 occurrences7.0–4.2 Mya — about 0.2 occurrences4.2–1.4 Mya — about 4 occurrences72.2 Mya3.7 Mya85 Mya1 Mya

10 occurrences of Ikamauius on record, most of them in the Pliocene. 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

10 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

6 formations

Tangahoe — 39.58°S, 174.28°EMilburn Limestone — 46.07°S, 170.00°EGee Greensand — 45.18°S, 170.90°EConcord — 44.49°S, 170.68°EOamaru — 43.23°S, 171.72°EConway — 42.58°S, 173.49°E

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The named rock units Ikamauius has been recovered from, largest first. Drawn where the rock is now, not where it formed. 4 occurrences have no formation on record, which is common for older literature.

Ikamauius and its relatives

Pliocene

Where Ikamauius and its relatives were recorded in the Pliocene.

Found in the same rock

114 taxa

The Paleobiology Database records 9 sites for Ikamauius, 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

5 references

Each of the 10 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 Ikamauius 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 Ikamauius, or no answer at all. This entry cannot say which.

No 3D scan of Ikamauius 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

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 itPliotrematinae through timeFormations of the PlioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Keyes 1979