Eumarcia

Eumarcia

via iDigBio · CC0 · via iDigBio. 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
TapetiniPBDB
Diet
suspension feederPBDB, for Veneridae
Life habit
infaunalPBDB, for Veneridae
Motility
facultatively mobilePBDB, for Veneridae
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 37 million years on record.

The record covers at least 37.71 Mya to 129 ka. No occurrence read is dated outside 41.03 Mya to 11.7 ka.

Eocene — about 1 of 27 occurrencesEoceneOligocene — about 9 of 27 occurrencesOligoceneMiocene — about 9 of 27 occurrencesMiocenePliocene — about 4 of 27 occurrencesPleistocene — about 4 of 27 occurrences42–40 Mya — about 0.2 occurrences40–39 Mya — about 0.4 occurrences39–38 Mya — about 0.4 occurrences35–33 Mya — about 0.3 occurrences33–32 Mya — about 0.9 occurrences32–31 Mya — about 0.9 occurrences31–29 Mya — about 0.9 occurrences29–28 Mya — about 0.9 occurrences28–27 Mya — about 1 occurrence27–25 Mya — about 2 occurrences25–24 Mya — about 2 occurrences24–22 Mya — about 1 occurrence22–21 Mya — about 0.9 occurrences21–20 Mya — about 1 occurrence20–18 Mya — about 2 occurrences18–17 Mya — about 3 occurrences17–15 Mya — about 2 occurrences5.6–4.2 Mya — about 3 occurrences4.2–2.8 Mya — about 1 occurrence1.4–0 Mya — about 4 occurrences37.71 Mya129 ka41.9 Mya0 Mya

27 occurrences of Eumarcia on record, most of them in the Oligocene. 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

27 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

10 formations

Tamala Limestone — 32.04°S, 115.76°EPukemiro Sandstone — 37.67°S, 175.15°EPukemiro Sandstone — 38.00°S, 175.20°EOtahuhu — 36.95°S, 174.80°EMount Brown — 44.16°S, 171.10°EMount Brown — 44.03°S, 170.72°EIhungia — 40.27°S, 176.22°EIhungia — 40.30°S, 176.28°EPomahaka — 46.00°S, 169.00°ERifle Butts — 45.12°S, 170.93°ESan Julian — 47.13°S, 66.05°WSan Julián — 47.03°S, 66.70°WLa Meseta — 64.24°S, 56.67°W

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The named rock units Eumarcia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 5 occurrences have no formation on record, which is common for older literature.

Eumarcia and its relatives

Oligocene

Where Eumarcia and its relatives were recorded in the Oligocene.

Found in the same rock

339 taxa

The Paleobiology Database records 16 sites for Eumarcia, 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

13 references

Each of the 27 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. 1 further reference is 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 Eumarcia

Source
iDigBio
Credit
via iDigBio
Licence
CC0
Commercial use
the licence allows it

CT scan

Licence
In Copyright
Commercial use
cannot be read from the licence given — check the record
Specimen
Eumarcia fumigata · fmnh:invertebrate zoology:176290

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

Keep going

What may have been alongside itTapetini through timeFormations of the OligoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Iredale 1925