Acirsa nexilia

Acirsa nexilia

via iDigBio · CC BY · via iDigBio. 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
AcirsaPBDB
Diet
carnivorePBDB, for Epitoniidae
Life habit
low-level epifaunalPBDB, for Epitoniidae
Motility
slow-movingPBDB, for Epitoniidae
Vision
limitedPBDB, for Gastropoda

Time the record covers

At most 12 million years on record.

Every occurrence read is dated to somewhere between 83.6 Mya and 72.2 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Late Cretaceous — about 3 of 3 occurrencesLate Cretaceous84–83 Mya — about 0.1 occurrences83–83 Mya — about 0.1 occurrences83–82 Mya — about 0.1 occurrences82–82 Mya — about 0.1 occurrences82–82 Mya — about 0.1 occurrences82–81 Mya — about 0.1 occurrences81–81 Mya — about 0.1 occurrences81–80 Mya — about 0.1 occurrences80–80 Mya — about 0.1 occurrences80–80 Mya — about 0.1 occurrences80–79 Mya — about 0.1 occurrences79–79 Mya — about 0.1 occurrences79–78 Mya — about 0.1 occurrences78–78 Mya — about 0.1 occurrences78–77 Mya — about 0.1 occurrences77–77 Mya — about 0.1 occurrences77–77 Mya — about 0.1 occurrences77–76 Mya — about 0.1 occurrences76–76 Mya — about 0.1 occurrences76–75 Mya — about 0.1 occurrences75–75 Mya — about 0.1 occurrences75–75 Mya — about 0.1 occurrences75–74 Mya — about 0.1 occurrences74–74 Mya — about 0.1 occurrences74–73 Mya — about 0.1 occurrences73–73 Mya — about 0.1 occurrences73–73 Mya — about 0.1 occurrences73–72 Mya — about 0.1 occurrences84.1 Mya71.7 Mya

3 occurrences of Acirsa nexilia on record, most of them in the Late Cretaceous. 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

2 formations

Chico — 39.80°N, 121.73°WChico — 39.64°N, 121.56°WChatsworth — 34.22°N, 118.67°W

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

Acirsa nexilia and its relatives

Late Cretaceous

Where Acirsa nexilia and its relatives were recorded in the Late Cretaceous.

Found in the same rock

73 taxa

The Paleobiology Database records 3 sites for Acirsa nexilia, 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 Acirsa nexilia

Source
iDigBio
Credit
via iDigBio
Licence
CC BY
Commercial use
the licence allows it

No 3D scan of Acirsa nexilia 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.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itAcirsa through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (White 1889)