Janthina typica

Janthina typica is an extinct species of holoplanktonic sea snail, a marine gastropod mollusk in the family Epitoniidae, the violet snails or purple storm snails.

Janthina typica

Uncredited · 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
JanthinaPBDB
Diet
carnivorePBDB, for Janthinidae
Life habit
planktonicPBDB, for Janthinidae
Motility
passively mobilePBDB, for Janthinidae
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 100 thousand years on record.

The record covers at least 3.7 Mya to 3.6 Mya. No occurrence read is dated outside 5.333 Mya to 2.58 Mya.

Miocene — about 0 of 5 occurrencesPliocene — about 5 of 5 occurrencesPliocenePleistocene — about 0 of 5 occurrences5.5–5.3 Mya — about 0.0 occurrences5.3–5.2 Mya — about 0.3 occurrences5.2–5.1 Mya — about 0.3 occurrences5.1–5.0 Mya — about 0.3 occurrences5.0–4.8 Mya — about 0.3 occurrences4.8–4.7 Mya — about 0.3 occurrences4.7–4.6 Mya — about 0.3 occurrences4.6–4.5 Mya — about 0.3 occurrences4.5–4.3 Mya — about 0.3 occurrences4.3–4.2 Mya — about 0.3 occurrences4.2–4.1 Mya — about 0.3 occurrences4.1–4.0 Mya — about 0.3 occurrences4.0–3.8 Mya — about 0.3 occurrences3.8–3.7 Mya — about 0.3 occurrences3.7–3.6 Mya — about 0.2 occurrences3.6–3.5 Mya — about 0.2 occurrences3.5–3.3 Mya — about 0.2 occurrences3.3–3.2 Mya — about 0.2 occurrences3.2–3.1 Mya — about 0.2 occurrences3.1–3.0 Mya — about 0.2 occurrences3.0–2.8 Mya — about 0.2 occurrences2.8–2.7 Mya — about 0.2 occurrences2.7–2.6 Mya — about 0.2 occurrences2.6–2.5 Mya — about 0.0 occurrences3.7 Mya – 3.6 Mya5.83 Mya2.08 Mya

5 occurrences of Janthina typica on record, most of them in the Pliocene. 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

5 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

4 formations

Otahuhu — 37.21°S, 174.90°EOtahuhu — 36.95°S, 174.84°ETsuma — 32.13°N, 131.42°ETakanabe — 32.11°N, 131.49°EKaawa — 37.50°S, 174.76°E

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

Janthina typica and its relatives

Pliocene

Where Janthina typica and its relatives were recorded in the Pliocene.

Found in the same rock

50 taxa

The Paleobiology Database records 4 sites for Janthina typica, 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

3 references

Each of the 5 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 Janthina typica

Credit
nobody named on the record
Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record

No 3D scan of Janthina typica was found in MorphoSource and Sketchfab.

Smithsonian Open Access was 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 itJanthina through timeFormations of the PlioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Bronn 1861)