Diloma

Diloma is a genus of medium-sized sea snails, marine gastropod mollusks in the family Trochidae, the top snails.

Diloma

GrahamBould · 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
TrochinaePBDB
Diet
grazerPBDB, for Trochidae
Life habit
epifaunalPBDB, for Trochidae
Motility
actively mobilePBDB, for Trochidae
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 26 million years on record.

The record covers at least 27.3 Mya to 774 ka. No occurrence read is dated outside 33.9 Mya to 11.7 ka.

Eocene — about 0 of 40 occurrencesOligocene — about 1 of 40 occurrencesOligoceneMiocene — about 30 of 40 occurrencesMiocenePliocene — about 5 of 40 occurrencesPleistocene — about 4 of 40 occurrences35–33 Mya — about 0.1 occurrences33–32 Mya — about 0.2 occurrences32–31 Mya — about 0.2 occurrences31–30 Mya — about 0.2 occurrences30–29 Mya — about 0.2 occurrences29–28 Mya — about 0.2 occurrences28–27 Mya — about 0.1 occurrences23–22 Mya — about 1 occurrence22–21 Mya — about 1 occurrence21–20 Mya — about 3 occurrences20–18 Mya — about 4 occurrences18–17 Mya — about 4 occurrences17–16 Mya — about 4 occurrences16–15 Mya — about 2 occurrences15–14 Mya — about 2 occurrences14–13 Mya — about 4 occurrences13–12 Mya — about 1 occurrence12–10 Mya — about 0.5 occurrences10–9.2 Mya — about 0.5 occurrences9.2–8.1 Mya — about 0.5 occurrences8.1–6.9 Mya — about 0.4 occurrences5.8–4.6 Mya — about 0.4 occurrences4.6–3.5 Mya — about 1 occurrence3.5–2.3 Mya — about 4 occurrences2.3–1.2 Mya — about 2 occurrences1.2–0 Mya — about 2 occurrences27.3 Mya774 ka34.6 Mya0 Mya

40 occurrences of Diloma on record, most of them in the Miocene. The Paleobiology Database records this as a living group. 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

40 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

14 formations

Fels — 48.50°N, 15.76°EFels — 48.51°N, 15.74°EFels — 48.20°N, 15.43°ETermofourà — 45.05°N, 7.80°ETermofourà — 45.04°N, 7.77°EBaldissero — 45.03°N, 7.76°EBaldissero — 45.03°N, 7.75°EKoronia — 35.08°N, 33.17°EKoronia — 35.05°N, 33.05°EPoint Allen — 36.00°S, 137.17°EOtahuhu — 36.95°S, 174.84°EWaita — 33.83°N, 130.50°EFalun de Saucats — 44.66°N, 0.57°WWaiomio — 40.03°S, 175.48°EVienna Basin — 47.95°N, 16.20°EMonte Giogo — 44.85°N, 9.86°EEstratos de Caldera — 27.15°S, 70.93°WNavidad — 33.95°S, 71.87°WRanquil — 37.45°S, 73.60°W

Loading coastlines…

The named rock units Diloma has been recovered from, largest first. Drawn where the rock is now, not where it formed. 13 occurrences have no formation on record, which is common for older literature.

Diloma and its relatives

Miocene

Where Diloma and its relatives were recorded in the Miocene.

Found in the same rock

1,065 taxa

The Paleobiology Database records 24 sites for Diloma, 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

21 references

Each of the 40 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. 9 further references are not listed. 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 Diloma

Credit
GrahamBould
Licence
Public Domain
Commercial use
the licence allows it

No 3D scan of Diloma 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 itTrochinae through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Philippi 1845