Onoba semicostata

Onoba semicostata is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.

Onoba semicostata

Ar rouz · CC BY-SA 4.0 · 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
OnobaPBDB
Diet
grazerPBDB, for Rissoidae
Life habit
epifaunalPBDB, for Rissoidae
Motility
actively mobilePBDB, for Rissoidae
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 9 million years on record.

The record covers at least 11.63 Mya to 2.58 Mya. No occurrence read is dated outside 15.98 Mya to 774 ka.

Miocene — about 1 of 10 occurrencesMiocenePliocene — about 3 of 10 occurrencesPliocenePleistocene — about 6 of 10 occurrencesPleistocene16–16 Mya — about 0.0 occurrences16–15 Mya — about 0.1 occurrences15–15 Mya — about 0.1 occurrences15–14 Mya — about 0.1 occurrences14–14 Mya — about 0.1 occurrences14–13 Mya — about 0.1 occurrences13–13 Mya — about 0.1 occurrences13–12 Mya — about 0.1 occurrences12–12 Mya — about 0.1 occurrences5.7–5.1 Mya — about 0.1 occurrences5.1–4.6 Mya — about 0.4 occurrences4.6–4.1 Mya — about 0.4 occurrences4.1–3.5 Mya — about 0.5 occurrences3.5–3.0 Mya — about 0.9 occurrences3.0–2.4 Mya — about 1 occurrence2.4–1.9 Mya — about 2 occurrences1.9–1.4 Mya — about 2 occurrences1.4–814 ka Mya — about 2 occurrences814 ka–274 ka Mya — about 0.1 occurrences11.63 Mya2.58 Mya16.5 Mya274 ka

10 occurrences of Onoba semicostata on record. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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

2 formations

Lillo — 51.25°N, 4.28°ENorwich Crag — 52.58°N, 1.38°E

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The named rock units Onoba semicostata has been recovered from, largest first. Drawn where the rock is now, not where it formed. 8 occurrences have no formation on record, which is common for older literature.

Found in the same rock

231 taxa

The Paleobiology Database records 8 sites for Onoba semicostata, 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

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

Media and terms

Media content1

Picture of Onoba semicostata

Credit
Ar rouz
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

No 3D scan of Onoba semicostata 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 itOnoba through timeThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Montagu 1803)