Aligena

Aligena

via iDigBio · 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
Also called
aligena clamPBDB
Sits inside
LasaeidaePBDB
Diet
suspension feederPBDB
Life habit
infaunalPBDB
Motility
stationaryPBDB
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 15 million years on record.

The record covers at least 15.98 Mya to 11.7 ka. No occurrence read is dated outside 23.04 Mya to 0 Mya.

Oligocene — about 0 of 56 occurrencesMiocene — about 26 of 56 occurrencesMiocenePliocene — about 8 of 56 occurrencesPliocenePleistocene — about 19 of 56 occurrencesPleistocene24–23 Mya — about 0.0 occurrences23–22 Mya — about 0.1 occurrences22–21 Mya — about 0.1 occurrences21–20 Mya — about 0.1 occurrences20–20 Mya — about 1 occurrence20–19 Mya — about 1 occurrence19–18 Mya — about 1 occurrence18–17 Mya — about 1 occurrence17–16 Mya — about 1 occurrence16–16 Mya — about 0.7 occurrences16–15 Mya — about 0.1 occurrences15–14 Mya — about 0.1 occurrences14–13 Mya — about 4 occurrences13–13 Mya — about 7 occurrences13–12 Mya — about 7 occurrences12–11 Mya — about 1 occurrence11–10 Mya — about 0.2 occurrences10–9.4 Mya — about 0.2 occurrences9.4–8.6 Mya — about 0.2 occurrences8.6–7.8 Mya — about 0.2 occurrences7.8–7.1 Mya — about 0.1 occurrences5.5–4.7 Mya — about 0.7 occurrences4.7–3.9 Mya — about 0.9 occurrences3.9–3.1 Mya — about 3 occurrences3.1–2.4 Mya — about 4 occurrences2.4–1.6 Mya — about 3 occurrences1.6–785 ka Mya — about 2 occurrences785 ka–0 Mya — about 16 occurrences15.98 Mya11.7 ka23.5 Mya0 Mya

56 occurrences of Aligena on record, most of them in the Miocene. 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

56 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

22 formations

Shoal River — 30.72°N, 86.12°WShoal River — 30.72°N, 86.04°WShoal River — 30.65°N, 86.04°WShoal River — 30.69°N, 86.65°WChoptank — 38.39°N, 76.57°WChoptank — 38.41°N, 76.48°WChoptank — 38.52°N, 76.51°WChoptank — 38.38°N, 76.38°WOak Grove — 30.92°N, 86.57°WPalos Verdes Sand — 33.99°N, 118.45°WPalos Verdes Sand — 33.60°N, 117.88°WPalos Verdes Sand — 33.80°N, 118.17°WChowan RIver — 35.28°N, 76.65°WChowan RIver — 36.05°N, 76.73°WDuplin — 34.90°N, 78.05°WFort Thompson — 27.72°N, 82.43°WFort Thompson — 26.76°N, 81.44°WPalos Verdes — 33.63°N, 117.90°WNew Orleans Barrier Trend — 30.05°N, 89.96°WChipola — 30.44°N, 85.19°WJama — 0.18°S, 80.32°WJames City — 35.28°N, 76.65°WBermont — 27.72°N, 82.43°WTalbot — 38.07°N, 76.36°WPamlico — 32.69°N, 80.23°WWaccamaw — 34.56°N, 78.49°WBerada — 51.10°N, 5.80°EYorktown — 37.23°N, 76.51°WCoralline Crag — 52.75°N, 1.53°EKattendijk — 51.25°N, 4.28°ERaysor Marl — 33.10°N, 80.67°WSan Diego — 32.54°N, 117.11°W

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The named rock units Aligena has been recovered from, largest first. Drawn where the rock is now, not where it formed. 8 occurrences have no formation on record, which is common for older literature.

Aligena and its relatives

Miocene

Where Aligena and its relatives were recorded in the Miocene.

Found in the same rock

2,176 taxa

The Paleobiology Database records 41 sites for Aligena, and this reads all of them. Of that, one read hit the database's own return limit, so every count below is a floor rather than a total. 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

27 references

Each of the 56 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. 15 further references are not listed. 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 Aligena

Source
iDigBio
Credit
via iDigBio
Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record

No 3D scan of Aligena 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 itLasaeidae through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Lea 1843