Acroloxus

Acroloxus is a genus of very small, air-breathing, freshwater snails, or more precisely limpets, aquatic pulmonate gastropods in the family Acroloxidae.

Acroloxus

Ehrmann, Hermann Felix Paul (* 21st December 1868 – † 6th October 1937; Germany) · 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
Also called
capshellPBDB
Sits inside
AcroloxidaePBDB
Life habit
epifaunalPBDB, for Gastropoda
Motility
actively mobilePBDB, for Gastropoda
Vision
limitedPBDB, for Gastropoda
Environment
freshwaterPBDB, for Acroloxidae

Time the record covers

At least 60 million years on record.

The record covers at least 66 Mya to 5.333 Mya. No occurrence read is dated outside 72.2 Mya to 11.7 ka.

Late Cretaceous — about 1 of 3 occurrencesLate CretaceousPaleocene — about 0 of 3 occurrencesEocene — about 0 of 3 occurrencesOligocene — about 0 of 3 occurrencesMiocene — about 0 of 3 occurrencesPliocene — about 1 of 3 occurrencesPleistocene — about 1 of 3 occurrences74–71 Mya — about 0.2 occurrences71–69 Mya — about 0.4 occurrences69–66 Mya — about 0.4 occurrences66–64 Mya — about 0.0 occurrences7.4–4.9 Mya — about 0.2 occurrences4.9–2.5 Mya — about 0.9 occurrences2.5–0 Mya — about 0.9 occurrences66 Mya5.333 Mya74 Mya0 Mya

3 occurrences of Acroloxus on record. 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

3 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

Densuș-Ciula — 45.62°N, 22.78°E

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The named rock units Acroloxus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.

Found in the same rock

48 taxa

The Paleobiology Database records 3 sites for Acroloxus, 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

2 references

Each of the 3 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. 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 Acroloxus

Credit
Ehrmann, Hermann Felix Paul (* 21st December 1868 – † 6th October 1937; Germany)
Licence
Public Domain
Commercial use
the licence allows it

No 3D scan of Acroloxus 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 itAcroloxidae through timeThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Beck 1837