Protoma

Protoma is a genus of sea snails, marine gastropod mollusks in the family Turritellidae.

Protoma

Hectonichus · CC BY-SA 3.0 · 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
ProtominaePBDB
Diet
suspension feederPBDB, for Turritellidae
Life habit
semi-infaunalPBDB, for Turritellidae
Motility
facultatively mobilePBDB, for Turritellidae
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 40 million years on record.

The record covers at least 41.03 Mya to 129 ka. No occurrence read is dated outside 48.07 Mya to 11.7 ka.

Eocene — about 2 of 44 occurrencesEoceneOligocene — about 13 of 44 occurrencesOligoceneMiocene — about 26 of 44 occurrencesMiocenePliocene — about 1 of 44 occurrencesPleistocene — about 2 of 44 occurrences49–47 Mya — about 0.2 occurrences47–46 Mya — about 0.5 occurrences46–44 Mya — about 0.5 occurrences44–42 Mya — about 0.5 occurrences42–41 Mya — about 0.4 occurrences34–33 Mya — about 1 occurrence33–31 Mya — about 2 occurrences31–29 Mya — about 2 occurrences29–28 Mya — about 2 occurrences28–26 Mya — about 2 occurrences26–25 Mya — about 2 occurrences25–23 Mya — about 2 occurrences23–21 Mya — about 5 occurrences21–20 Mya — about 3 occurrences20–18 Mya — about 2 occurrences18–16 Mya — about 2 occurrences16–15 Mya — about 3 occurrences15–13 Mya — about 2 occurrences13–11 Mya — about 1.0 occurrences11–9.8 Mya — about 3 occurrences9.8–8.2 Mya — about 3 occurrences8.2–6.5 Mya — about 2 occurrences6.5–4.9 Mya — about 0.5 occurrences4.9–3.3 Mya — about 0.6 occurrences3.3–1.6 Mya — about 0.3 occurrences1.6–0 Mya — about 2 occurrences41.03 Mya129 ka49 Mya0 Mya

44 occurrences of Protoma 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

44 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

16 formations

Nari — 28.00°N, 66.00°ENari — 26.36°N, 67.86°ENari — 26.14°N, 66.79°ENari — 25.38°N, 67.80°EMaraldi Sandstone — 46.22°N, 12.80°EUpper Cyrena — 47.50°N, 19.08°EPreplans Sandstone — 46.22°N, 12.80°EBaldissero — 45.03°N, 7.76°EBaldissero — 45.03°N, 7.75°EMekran — 25.33°N, 63.33°EGaj — 35.25°N, 73.50°EGaj — 26.88°N, 67.26°ETermofourà — 45.05°N, 7.80°EFaluns de la Touraine — 47.40°N, 1.23°ETorrente Meduna Siltstone — 46.22°N, 12.80°EChengapara — 25.17°N, 90.67°EBaghmara — 25.17°N, 90.67°EFalun de Saucats — 44.66°N, 0.57°WKhari Nadi — 23.38°N, 68.72°EBredasdorp — 33.88°S, 18.45°EPartimao — 37.08°N, 8.68°W

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The named rock units Protoma has been recovered from, largest first. Drawn where the rock is now, not where it formed. 6 occurrences have no formation on record, which is common for older literature.

Protoma and its relatives

Miocene

Where Protoma and its relatives were recorded in the Miocene.

Found in the same rock

710 taxa

The Paleobiology Database records 23 sites for Protoma, 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

16 references

Each of the 44 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. 4 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 Protoma

Credit
Hectonichus
Licence
CC BY-SA 3.0
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 itProtominae through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Baird 1870