Barnea (Anchomasa)

No picture of Barnea (Anchomasa) 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 Barnea (Anchomasa), or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
BarneaPBDB
Diet
suspension feederPBDB, for Pholadidae
Life habit
boringPBDB, for Pholadidae
Motility
stationaryPBDB, for Pholadidae
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 85 million years on record.

The record covers at least 85.7 Mya to 11.7 ka. No occurrence read is dated outside 89.8 Mya to 0 Mya.

Late Cretaceous — about 2 of 5 occurrencesLate CretaceousPaleocene — about 0 of 5 occurrencesEocene — about 0 of 5 occurrencesOligocene — about 0 of 5 occurrencesMiocene — about 1 of 5 occurrencesMiocenePliocene — about 0 of 5 occurrencesPleistocene — about 1 of 5 occurrences92–89 Mya — about 0.5 occurrences89–85 Mya — about 1 occurrence85–82 Mya — about 0.3 occurrences18–15 Mya — about 0.1 occurrences15–12 Mya — about 0.3 occurrences12–9.2 Mya — about 0.3 occurrences9.2–6.1 Mya — about 0.3 occurrences6.1–3.1 Mya — about 0.1 occurrences3.1–0 Mya — about 2 occurrences85.7 Mya11.7 ka92 Mya0 Mya

5 occurrences of Barnea (Anchomasa) on record, most of them in the Late Cretaceous. 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

5 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

2 formations

Redding — 40.68°N, 122.02°WWaiomio — 40.03°S, 175.48°E

Loading coastlines…

The named rock units Barnea (Anchomasa) has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.

Barnea (Anchomasa) and its relatives

Late Cretaceous

Where Barnea (Anchomasa) and its relatives were recorded in the Late Cretaceous.

Found in the same rock

69 taxa

The Paleobiology Database records 4 sites for Barnea (Anchomasa), 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

4 references

Each of the 5 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 content1

CT scan

Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record
Specimen
Barnea truncata · USNM:IZ:USNM 1409682

No picture of Barnea (Anchomasa) 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 Barnea (Anchomasa), or no answer at all. This entry cannot say which.

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

Keep going

What may have been alongside itBarnea through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Leach 1852)