Umbonium

Searched as Umbonium (Suchium) moniliferum decoratum. The Paleobiology Database treats Umbonium as the accepted name.

Umbonium, sometimes known as the "button top shells", is a genus of sea snails, marine gastropod molluscs in the family Trochidae, the top snails.

Umbonium

星組背番号10 · Public Domain · 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
UmboniiniPBDB
Diet
grazer, suspension feederPBDB
Life habit
epifaunalPBDB
Motility
actively mobilePBDB
Vision
limitedPBDB, for Gastropoda

Time the record covers

At most 1.8 million years on record.

Every occurrence read is dated to somewhere between 5.333 Mya and 3.6 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Miocene — about 0 of 2 occurrencesPliocene — about 2 of 2 occurrencesPliocene5.4–5.3 Mya — about 0.1 occurrences5.3–5.2 Mya — about 0.1 occurrences5.2–5.1 Mya — about 0.1 occurrences5.1–5.0 Mya — about 0.1 occurrences5.0–4.9 Mya — about 0.1 occurrences4.9–4.8 Mya — about 0.1 occurrences4.8–4.7 Mya — about 0.1 occurrences4.7–4.6 Mya — about 0.1 occurrences4.6–4.6 Mya — about 0.1 occurrences4.6–4.5 Mya — about 0.1 occurrences4.5–4.4 Mya — about 0.1 occurrences4.4–4.3 Mya — about 0.1 occurrences4.3–4.2 Mya — about 0.1 occurrences4.2–4.1 Mya — about 0.1 occurrences4.1–4.0 Mya — about 0.1 occurrences4.0–3.9 Mya — about 0.1 occurrences3.9–3.8 Mya — about 0.1 occurrences3.8–3.7 Mya — about 0.1 occurrences3.7–3.6 Mya — about 0.1 occurrences3.6–3.6 Mya — about 0.1 occurrences5.83 Mya3.1 Mya

2 occurrences of Umbonium on record, most of them in the Pliocene. 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

2 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

Haneji — 26.62°N, 127.98°E

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

Umbonium and its relatives

Pliocene

Where Umbonium and its relatives were recorded in the Pliocene.

Found in the same rock

340 taxa

The Paleobiology Database records 13 sites for Umbonium, 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

1 reference

Each of the 2 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 Umbonium

Credit
星組背番号10
Licence
Public Domain
Commercial use
the licence allows it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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 itUmboniini through timeFormations of the PlioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Link 1807