Pitar (Lamelliconcha)

Lamelliconcha circinata (Born, 1778), a relative of Pitar (Lamelliconcha) — not Pitar (Lamelliconcha) itself

Not Pitar (Lamelliconcha). This is Lamelliconcha circinata (Born, 1778), a relative — both are Veneridae.

Thiago de Freitas Cordeiro · CC BY-NC 4.0 · 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
PitarPBDB
Diet
suspension feederPBDB, for Pitar
Life habit
infaunalPBDB, for Pitar
Motility
facultatively mobilePBDB, for Pitar
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 90 million years on record.

The record covers at least 93.9 Mya to 3.6 Mya. No occurrence read is dated outside 100.5 Mya to 2.58 Mya.

Early Cretaceous — about 0 of 71 occurrencesLate Cretaceous — about 2 of 71 occurrencesLate CretaceousPaleocene — about 0 of 71 occurrencesEocene — about 31 of 71 occurrencesEoceneOligocene — about 4 of 71 occurrencesOligoceneMiocene — about 23 of 71 occurrencesMiocenePliocene — about 11 of 71 occurrencesPleistocene — about 0 of 71 occurrences102–99 Mya — about 0.4 occurrences99–96 Mya — about 1 occurrence96–92 Mya — about 0.5 occurrences58–55 Mya — about 1 occurrence55–52 Mya — about 4 occurrences52–48 Mya — about 4 occurrences48–45 Mya — about 8 occurrences45–41 Mya — about 8 occurrences41–38 Mya — about 3 occurrences38–35 Mya — about 3 occurrences35–31 Mya — about 2 occurrences31–28 Mya — about 2 occurrences28–24 Mya — about 0.3 occurrences24–21 Mya — about 3 occurrences21–18 Mya — about 6 occurrences18–14 Mya — about 3 occurrences14–11 Mya — about 1 occurrence11–7.4 Mya — about 6 occurrences7.4–4.0 Mya — about 11 occurrences4.0–622 ka Mya — about 3 occurrences93.9 Mya3.6 Mya102 Mya622 ka

71 occurrences of Pitar (Lamelliconcha) on record, most of them in the Eocene. 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

71 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

Juncal — 34.77°N, 119.16°WJuncal — 34.40°N, 118.48°WJuncal — 34.56°N, 118.72°WJuncal — 34.54°N, 118.73°WSpringvale — 10.62°N, 61.05°WPirabas — 1.00°S, 48.00°WPirabas — 1.23°S, 47.40°WPirabas — 0.48°S, 48.17°WPirabas — 2.58°S, 43.38°WPirabas — 2.41°S, 44.42°WPirabas — 1.66°S, 45.37°WPirabas — 2.88°S, 41.67°WMorne l'Enfer — 10.23°N, 61.63°WByram — 32.32°N, 90.86°WArdath — 32.91°N, 117.25°WArdath — 32.83°N, 117.23°WRaging River — 47.50°N, 121.91°WRaging River — 47.42°N, 121.97°WTalparo — 10.67°N, 61.07°WManiobra — 33.60°N, 115.66°WBateque — 26.50°N, 112.73°WTolstoi — 55.37°N, 161.47°WCantaure — 11.90°N, 69.84°WProgreso — 2.28°S, 80.43°WPenita — 8.23°N, 82.97°WMcBean — 33.24°N, 81.95°WMacarao — 11.85°N, 71.33°WAvenal — 35.88°N, 120.10°WDomengine — 36.20°N, 120.50°WSan Emigdio — 34.92°N, 119.30°WLlajas — 34.32°N, 118.63°WWheatland — 39.07°N, 121.36°WMatilija — 34.54°N, 118.75°W

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The named rock units Pitar (Lamelliconcha) has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.

Pitar (Lamelliconcha) and its relatives

Eocene

Where Pitar (Lamelliconcha) and its relatives were recorded in the Eocene.

Found in the same rock

870 taxa

The Paleobiology Database records 56 sites for Pitar (Lamelliconcha), 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

24 references

Each of the 71 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. 12 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 content2

Picture of Lamelliconcha circinata (Born, 1778)

Source
GBIF
Credit
Thiago de Freitas Cordeiro
Licence
CC BY-NC 4.0
Commercial use
the licence does not allow it

CT scan

Licence
In Copyright
Commercial use
cannot be read from the licence given — check the record
Specimen
Pitar circinatus · FMNH:Invertebrate Zoology:78390

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 itPitar through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Dall 1902