Asterohelix

Asterohelix

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
DiscohelicidaePBDB
Diet
grazerPBDB, for Vetigastropoda
Life habit
epifaunalPBDB, for Vetigastropoda
Motility
actively mobilePBDB, for Vetigastropoda
Vision
limitedPBDB, for Gastropoda

Time the record covers

At most 6.6 million years on record.

Every occurrence read is dated to somewhere between 199.5 Mya and 192.9 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Early Jurassic — about 3 of 3 occurrencesEarly Jurassic200–199 Mya — about 0.0 occurrences199–199 Mya — about 0.1 occurrences199–199 Mya — about 0.1 occurrences199–199 Mya — about 0.1 occurrences199–198 Mya — about 0.1 occurrences198–198 Mya — about 0.1 occurrences198–198 Mya — about 0.1 occurrences198–198 Mya — about 0.1 occurrences198–197 Mya — about 0.1 occurrences197–197 Mya — about 0.1 occurrences197–197 Mya — about 0.1 occurrences197–197 Mya — about 0.1 occurrences197–196 Mya — about 0.1 occurrences196–196 Mya — about 0.1 occurrences196–196 Mya — about 0.1 occurrences196–196 Mya — about 0.1 occurrences196–195 Mya — about 0.1 occurrences195–195 Mya — about 0.1 occurrences195–195 Mya — about 0.1 occurrences195–195 Mya — about 0.1 occurrences195–194 Mya — about 0.1 occurrences194–194 Mya — about 0.1 occurrences194–194 Mya — about 0.1 occurrences194–194 Mya — about 0.1 occurrences194–193 Mya — about 0.1 occurrences193–193 Mya — about 0.1 occurrences193–193 Mya — about 0.1 occurrences193–193 Mya — about 0.0 occurrences200 Mya192.4 Mya

3 occurrences of Asterohelix 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

3 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

1 formation

Arietenkalk — 48.70°N, 9.67°E

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The named rock units Asterohelix has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Asterohelix and its relatives

Early Jurassic

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

Found in the same rock

29 taxa

The Paleobiology Database records 2 sites for Asterohelix, 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

2 references

Each of the 3 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. Each entry links to the Paleobiology Database's own record for the work.

Media and terms

Media content1

Picture of Asterohelix

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

No 3D scan of Asterohelix 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.

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

Keep going

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

Occurrence data from the Paleobiology Database, CC BY 4.0. Szabo 1984