Semelina

No picture of Semelina 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 Semelina, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
SemelidaePBDB
Diet
deposit feederPBDB
Life habit
infaunalPBDB
Motility
facultatively mobilePBDB
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 24 million years on record.

The record covers at least 27.3 Mya to 2.58 Mya. No occurrence read is dated outside 33.9 Mya to 774 ka.

Eocene — about 0 of 14 occurrencesOligocene — about 8 of 14 occurrencesOligoceneMiocene — about 0 of 14 occurrencesPliocene — about 5 of 14 occurrencesPleistocene — about 1 of 14 occurrences35–33 Mya — about 0.6 occurrences33–32 Mya — about 1 occurrence32–31 Mya — about 1 occurrence31–30 Mya — about 1 occurrence30–29 Mya — about 1 occurrence29–28 Mya — about 1 occurrence28–27 Mya — about 0.5 occurrences5.9–4.7 Mya — about 0.7 occurrences4.7–3.6 Mya — about 1 occurrence3.6–2.4 Mya — about 3 occurrences2.4–1.3 Mya — about 0.6 occurrences1.3–111 ka Mya — about 0.3 occurrences27.3 Mya2.58 Mya34.6 Mya111 ka

14 occurrences of Semelina on record, most of them in the Oligocene. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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

14 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

8 formations

Mint Spring — 31.97°N, 89.50°WMint Spring — 31.98°N, 89.42°WMint Spring — 32.17°N, 90.18°WMint Spring — 32.36°N, 90.87°WByram — 32.01°N, 89.38°WByram — 32.32°N, 90.86°WBowden — 17.88°N, 76.28°WForest Hill — 30.98°N, 88.73°WPlaya Grande — 10.00°N, 71.00°WCaloosahatchee — 27.77°N, 82.68°WCayo Agua — 9.14°N, 82.01°WMare — 10.61°N, 63.52°W

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

Semelina and its relatives

Oligocene

Where Semelina and its relatives were recorded in the Oligocene.

Found in the same rock

532 taxa

The Paleobiology Database records 9 sites for Semelina, 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 14 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 content1

CT scan

Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record
Specimen
Semelina nuculoides · USNM:IZ:USNM 438905

No picture of Semelina 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 Semelina, or no answer at all. This entry cannot say which.

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 itSemelidae through timeFormations of the OligoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0.