Hamusina

Hamusina

via iDigBio · CC BY-NC-ND · via iDigBio. 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
HesperocirrinaePBDB
Diet
grazerPBDB, for Vetigastropoda
Life habit
epifaunalPBDB, for Vetigastropoda
Motility
actively mobilePBDB, for Vetigastropoda
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 99 million years on record.

The record covers at least 199.5 Mya to 100.5 Mya. No occurrence read is dated outside 201.4 Mya to 93.9 Mya.

Late Triassic — about 0 of 5 occurrencesEarly Jurassic — about 3 of 5 occurrencesEarly JurassicMiddle Jurassic — about 1 of 5 occurrencesMiddle JurassicLate Jurassic — about 0 of 5 occurrencesEarly Cretaceous — about 0 of 5 occurrencesLate Cretaceous — about 1 of 5 occurrences204–200 Mya — about 0.8 occurrences200–196 Mya — about 0.2 occurrences196–192 Mya — about 0.1 occurrences192–189 Mya — about 0.4 occurrences189–185 Mya — about 0.4 occurrences185–181 Mya — about 0.5 occurrences181–177 Mya — about 0.4 occurrences177–174 Mya — about 0.3 occurrences170–166 Mya — about 0.7 occurrences166–163 Mya — about 0.3 occurrences103–99 Mya — about 0.2 occurrences99–95 Mya — about 0.6 occurrences95–92 Mya — about 0.2 occurrences199.5 Mya100.5 Mya204 Mya92 Mya

5 occurrences of Hamusina on record, most of them in the Early Jurassic. 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

Kardosret — 47.00°N, 17.00°ECalcaire de Caen — 48.97°N, 0.13°WMulanguiñeu — 44.40°S, 70.57°W

Loading coastlines…

The named rock units Hamusina has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.

Hamusina and its relatives

Early Jurassic

Where Hamusina and its relatives were recorded in the Early Jurassic.

Found in the same rock

196 taxa

The Paleobiology Database records 4 sites for Hamusina, 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 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 content1

Picture of Hamusina

Source
iDigBio
Credit
via iDigBio
Licence
CC BY-NC-ND
Commercial use
the licence does not allow it

No 3D scan of Hamusina 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.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itHesperocirrinae through timeFormations of the Early JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Gemmellaro 1878