Lima (Acesta) beta

Lima beta Popenoe, 1937, a relative of Lima (Acesta) beta — not Lima (Acesta) beta itself

Not Lima (Acesta) beta. This is Lima beta Popenoe, 1937, a relative — both are Limidae.

W. P. Popenoe · CC0 · via GBIF. 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
AcestaPBDB
Diet
suspension feederPBDB, for Acesta
Life habit
epifaunalPBDB, for Acesta
Motility
facultatively mobilePBDB, for Acesta
Vision
blindPBDB, for Bivalvia

Time the record covers

At most 4.1 million years on record.

Every occurrence read is dated to somewhere between 93.9 Mya and 89.8 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Late Cretaceous — about 24 of 24 occurrencesLate Cretaceous94–94 Mya — about 0.1 occurrences94–94 Mya — about 1.0 occurrences94–94 Mya — about 1.0 occurrences94–93 Mya — about 1.0 occurrences93–93 Mya — about 1.0 occurrences93–93 Mya — about 1.0 occurrences93–93 Mya — about 1.0 occurrences93–93 Mya — about 1.0 occurrences93–93 Mya — about 1.0 occurrences93–92 Mya — about 1.0 occurrences92–92 Mya — about 1.0 occurrences92–92 Mya — about 1.0 occurrences92–92 Mya — about 1.0 occurrences92–92 Mya — about 1.0 occurrences92–92 Mya — about 1.0 occurrences92–91 Mya — about 1.0 occurrences91–91 Mya — about 1.0 occurrences91–91 Mya — about 1.0 occurrences91–91 Mya — about 1.0 occurrences91–91 Mya — about 1.0 occurrences91–90 Mya — about 1.0 occurrences90–90 Mya — about 1.0 occurrences90–90 Mya — about 1.0 occurrences90–90 Mya — about 1.0 occurrences90–90 Mya — about 1.0 occurrences90–90 Mya — about 0.1 occurrences94.4 Mya89.3 Mya

24 occurrences of Lima (Acesta) beta 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

24 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

Ladd — 33.70°N, 117.60°WLadd — 33.75°N, 117.64°W

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The named rock units Lima (Acesta) beta has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Lima (Acesta) beta and its relatives

Late Cretaceous

Where Lima (Acesta) beta and its relatives were recorded in the Late Cretaceous.

Found in the same rock

69 taxa

The Paleobiology Database records 24 sites for Lima (Acesta) beta, 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

6 references

Each of the 24 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 Lima beta Popenoe, 1937

Source
GBIF
Credit
W. P. Popenoe
Licence
CC0
Commercial use
the licence allows it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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

Keep going

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

Occurrence data from the Paleobiology Database, CC BY 4.0. (Popenoe 1937)