Arcoperna

Arcoperna

original by Nyst; scan by Tom Meijer · Public Domain · via Wikidata/Commons. 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
MytilidaePBDB
Diet
suspension feederPBDB, for Mytilidae
Life habit
epifaunalPBDB, for Mytilidae
Motility
stationary, attachedPBDB, for Mytilidae
Vision
blindPBDB, for Bivalvia
Environment
lagoonal,coastal,inner shelf,outer shelf,oceanic,brackish,freshwaterPBDB, for Mytilidae

Time the record covers

At least 154 million years on record.

The record covers at least 157.9 Mya to 3.6 Mya. No occurrence read is dated outside 159 Mya to 2.58 Mya.

Middle Jurassic — about 0 of 33 occurrencesLate Jurassic — about 1 of 33 occurrencesLate JurassicEarly Cretaceous — about 0 of 33 occurrencesLate Cretaceous — about 0 of 33 occurrencesPaleocene — about 7 of 33 occurrencesEocene — about 4 of 33 occurrencesEoceneOligocene — about 7 of 33 occurrencesMiocene — about 7 of 33 occurrencesMiocenePliocene — about 7 of 33 occurrencesPleistocene — about 0 of 33 occurrences162–157 Mya — about 1 occurrence70–65 Mya — about 1 occurrence65–59 Mya — about 5 occurrences59–54 Mya — about 0.9 occurrences49–43 Mya — about 0.7 occurrences43–38 Mya — about 1 occurrence38–32 Mya — about 3 occurrences32–27 Mya — about 3 occurrences27–22 Mya — about 4 occurrences22–16 Mya — about 0.6 occurrences16–11 Mya — about 6 occurrences11–5.4 Mya — about 0.8 occurrences5.4–0 Mya — about 7 occurrences157.9 Mya3.6 Mya162 Mya0 Mya

33 occurrences of Arcoperna on record, most of them in the Paleocene. 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

33 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

19 formations

Lillo — 51.25°N, 4.28°EMint Spring — 32.27°N, 89.99°WMint Spring — 32.17°N, 90.18°WCalcaire de Mons — 50.45°N, 3.93°ELellinge Greensand — 55.71°N, 12.60°ECoralline Crag — 52.75°N, 1.53°ECoralline Crag — 52.03°N, 1.38°EKattendijk — 51.25°N, 4.28°EBerchem — 51.29°N, 4.27°EBerchem — 51.20°N, 4.43°EBreda — 51.95°N, 6.75°EHückelhoven — 51.08°N, 6.32°EUpper Cyrena — 47.50°N, 19.08°EBrejning Clay — 56.17°N, 9.75°EVejle Fjord — 55.18°N, 11.88°ENiechobrz — 49.92°N, 21.87°ESantee Limestone — 33.35°N, 80.26°WFlint River — 30.91°N, 84.58°WBerada — 51.10°N, 5.80°EMoodys Branch — 31.86°N, 88.70°WOcala Limestone — 32.41°N, 83.64°WTivola — 32.46°N, 83.73°W

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The named rock units Arcoperna 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.

Arcoperna and its relatives

Paleocene

Where Arcoperna and its relatives were recorded in the Paleocene.

Found in the same rock

1,346 taxa

The Paleobiology Database records 25 sites for Arcoperna, 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

21 references

Each of the 33 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. 9 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 content1

Picture of Arcoperna

Credit
original by Nyst; scan by Tom Meijer
Licence
Public Domain
Commercial use
the licence allows it

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 itMytilidae through timeFormations of the PaleoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Conard 1865