Megayoldia (Portlandella)

No picture of Megayoldia (Portlandella) was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Megayoldia (Portlandella), or no answer at all. This entry cannot say which.

On record

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

Time the record covers

At least 62 million years on record.

The record covers at least 66 Mya to 3.6 Mya. No occurrence read is dated outside 72.2 Mya to 2.58 Mya.

Late Cretaceous — about 1 of 62 occurrencesLate CretaceousPaleocene — about 3 of 62 occurrencesPaleoceneEocene — about 11 of 62 occurrencesEoceneOligocene — about 26 of 62 occurrencesOligoceneMiocene — about 15 of 62 occurrencesMiocenePliocene — about 6 of 62 occurrencesPleistocene — about 0 of 62 occurrences74–71 Mya — about 0.2 occurrences71–69 Mya — about 0.4 occurrences69–66 Mya — about 0.4 occurrences66–64 Mya — about 0.5 occurrences64–62 Mya — about 0.5 occurrences62–59 Mya — about 0.5 occurrences59–57 Mya — about 1 occurrence57–54 Mya — about 0.9 occurrences54–52 Mya — about 0.8 occurrences52–49 Mya — about 0.8 occurrences49–47 Mya — about 0.9 occurrences47–45 Mya — about 1 occurrence45–42 Mya — about 1 occurrence42–40 Mya — about 1 occurrence40–37 Mya — about 2 occurrences37–35 Mya — about 2 occurrences35–33 Mya — about 4 occurrences33–30 Mya — about 5 occurrences30–28 Mya — about 5 occurrences28–25 Mya — about 6 occurrences25–23 Mya — about 6 occurrences23–20 Mya — about 3 occurrences20–18 Mya — about 2 occurrences18–16 Mya — about 2 occurrences16–13 Mya — about 3 occurrences13–11 Mya — about 2 occurrences11–8.4 Mya — about 2 occurrences8.4–6.0 Mya — about 2 occurrences6.0–3.6 Mya — about 4 occurrences3.6–1.2 Mya — about 2 occurrences66 Mya3.6 Mya74 Mya1 Mya

62 occurrences of Megayoldia (Portlandella) on record, most of them in the Oligocene. 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

62 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

36 formations

Tentokuji — 39.75°N, 140.41°EAluginskaya — 60.42°N, 165.92°EAluginskaya — 59.83°N, 165.00°EGakkhinskaya — 58.25°N, 158.75°ETyushevskaya — 54.50°N, 161.37°EIonayskaya — 62.25°N, 175.17°EIonayskaya — 62.43°N, 176.33°EKylanskaya — 59.92°N, 165.00°EKovachinskaya — 60.42°N, 165.92°EKovachinskaya — 57.78°N, 158.58°EAmaninskaya — 58.00°N, 158.20°EKakertskaya — 62.50°N, 165.00°EKamchikskaya — 62.50°N, 165.00°EMysa Ploskogo — 58.75°N, 163.75°ESnatol'skaya — 57.78°N, 158.58°EBlakeley — 47.58°N, 122.48°WBlakeley — 48.16°N, 123.83°WDaekhuriinskaya — 51.83°N, 143.17°EKaskadnaya — 54.16°N, 142.56°EKuluvenskaya — 58.50°N, 159.17°ELimimtevayamskaya — 58.97°N, 163.92°EPakhachinskaya — 60.00°N, 165.00°EViventekskaya — 57.78°N, 158.58°EIl'khatunskaya — 58.75°N, 163.75°EMysa Tons — 59.00°N, 164.00°ERateginskaya — 62.50°N, 165.00°EUtkholokskaya — 57.53°N, 157.17°EArakayskaya — 47.05°N, 142.06°E

Loading coastlines…

The named rock units Megayoldia (Portlandella) has been recovered from, largest first. Drawn where the rock is now, not where it formed. 12 further formations hold fewer occurrences each and are not listed. 1 occurrence has no formation on record, which is common for older literature.

Megayoldia (Portlandella) and its relatives

Oligocene

Where Megayoldia (Portlandella) and its relatives were recorded in the Oligocene.

Found in the same rock

524 taxa

The Paleobiology Database records 37 sites for Megayoldia (Portlandella), 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

12 references

Each of the 62 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 content0

No picture of Megayoldia (Portlandella) was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none.

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

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 itMegayoldia through timeFormations of the OligoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Stewart 1930)