Aligena aequata

No picture of Aligena aequata was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Aligena aequata, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
AligenaPBDB
Diet
suspension feederPBDB, for Aligena
Life habit
infaunalPBDB, for Aligena
Motility
stationaryPBDB, for Aligena
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 8 million years on record.

The record covers at least 11.63 Mya to 3.6 Mya. No occurrence read is dated outside 13.82 Mya to 2.58 Mya.

Miocene — about 6 of 8 occurrencesMiocenePliocene — about 2 of 8 occurrencesPliocenePleistocene — about 0 of 8 occurrences14–14 Mya — about 0.9 occurrences14–13 Mya — about 1 occurrence13–13 Mya — about 1 occurrence13–12 Mya — about 1 occurrence12–12 Mya — about 1 occurrence12–11 Mya — about 0.7 occurrences3.7–3.3 Mya — about 0.6 occurrences3.3–2.9 Mya — about 0.8 occurrences2.9–2.5 Mya — about 0.6 occurrences11.63 Mya3.6 Mya14.3 Mya2.1 Mya

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

8 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

3 formations

Choptank — 38.39°N, 76.57°WChoptank — 38.41°N, 76.48°WChoptank — 38.52°N, 76.51°WChoptank — 38.38°N, 76.38°WYorktown — 37.23°N, 76.51°WRaysor Marl — 33.10°N, 80.67°W

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

Aligena aequata and its relatives

Miocene

Where Aligena aequata and its relatives were recorded in the Miocene.

Found in the same rock

159 taxa

The Paleobiology Database records 8 sites for Aligena aequata, 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

3 references

Each of the 8 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 content0

No picture of Aligena aequata was found. Wikipedia, Wikidata and iDigBio were searched and had none.

Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Aligena aequata, or no answer at all. This entry cannot say which.

No 3D scan of Aligena aequata 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.

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

Keep going

What may have been alongside itAligena through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Conrad 1843)