Amathina

Amathina is a genus of small sea snails, marine heterobranch gastropod molluscs or micromolluscs in the family Amathinidae.

Amathina

Jan Delsing · 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
AmathinidaePBDB
Diet
carnivorePBDB, for Pyramidelloidea
Life habit
epifaunalPBDB, for Pyramidelloidea
Motility
actively mobilePBDB, for Pyramidelloidea
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 60 million years on record.

The record covers at least 83.6 Mya to 23.04 Mya. No occurrence read is dated outside 85.7 Mya to 5.333 Mya.

Late Cretaceous — about 1 of 2 occurrencesLate CretaceousPaleocene — about 0 of 2 occurrencesEocene — about 0 of 2 occurrencesOligocene — about 0 of 2 occurrencesMiocene — about 1 of 2 occurrencesMiocenePliocene — about 0 of 2 occurrences87–85 Mya — about 0.6 occurrences85–82 Mya — about 0.4 occurrences23–20 Mya — about 0.1 occurrences20–18 Mya — about 0.2 occurrences18–15 Mya — about 0.2 occurrences15–12 Mya — about 0.2 occurrences12–9.3 Mya — about 0.2 occurrences9.3–6.5 Mya — about 0.2 occurrences6.5–3.7 Mya — about 0.1 occurrences83.6 Mya23.04 Mya87 Mya4 Mya

2 occurrences of Amathina on record, most of them in the Late Cretaceous. 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

Ainonai — 43.79°N, 143.74°E

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The named rock units Amathina has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Amathina and its relatives

Late Cretaceous

Where Amathina and its relatives were recorded in the Late Cretaceous.

Found in the same rock

23 taxa

The Paleobiology Database records 2 sites for Amathina, and this reads all of them. The number is how many of those sites it was catalogued from too.

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

2 references

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 content2

Picture of Amathina

Credit
Jan Delsing
Licence
Public Domain
Commercial use
the licence allows it

CT scan

Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record
Specimen
Amathina tricarinata · NHMD:1787506

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 itAmathinidae through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Gray 1847