Actinomena

Actinomena

W. H. Burkholder · CC0 · 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
StrophomeninaePBDB
Diet
suspension feederPBDB, for Strophomenida
Life habit
epifaunalPBDB, for Strophomenida
Motility
stationaryPBDB, for Strophomenida
Vision
blindPBDB, for Strophomenata
Environment
marinePBDB, for Lophophorata

Time the record covers

At least 9 million years on record.

The record covers at least 458.2 Mya to 449.2 Mya. No occurrence read is dated outside 469.4 Mya to 445.5 Mya.

Ordovician — about 23 of 23 occurrencesOrdovician470–469 Mya — about 0.0 occurrences469–468 Mya — about 0.1 occurrences468–467 Mya — about 0.1 occurrences467–467 Mya — about 0.1 occurrences467–466 Mya — about 0.1 occurrences466–465 Mya — about 0.1 occurrences465–464 Mya — about 0.1 occurrences464–463 Mya — about 0.1 occurrences463–462 Mya — about 0.1 occurrences462–462 Mya — about 0.1 occurrences462–461 Mya — about 0.1 occurrences461–460 Mya — about 0.1 occurrences460–459 Mya — about 0.8 occurrences459–458 Mya — about 1 occurrence458–457 Mya — about 8 occurrences457–457 Mya — about 8 occurrences457–456 Mya — about 0.3 occurrences456–455 Mya — about 0.3 occurrences455–454 Mya — about 0.3 occurrences454–453 Mya — about 0.5 occurrences453–452 Mya — about 0.5 occurrences452–452 Mya — about 0.3 occurrences452–451 Mya — about 0.3 occurrences451–450 Mya — about 0.3 occurrences450–449 Mya — about 0.4 occurrences449–448 Mya — about 1 occurrence448–447 Mya — about 0.2 occurrences447–447 Mya — about 0.2 occurrences447–446 Mya — about 0.2 occurrences446–445 Mya — about 0.1 occurrences458.2 Mya449.2 Mya469.9 Mya445 Mya

23 occurrences of Actinomena on record, most of them in the Ordovician. 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

23 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

8 formations

Viivikonna — 59.38°N, 27.29°EViivikonna — 59.40°N, 24.56°EViivikonna — 59.43°N, 24.83°EViivikonna — 59.35°N, 27.01°EViivikonna — 59.39°N, 27.23°EViivikonna — 59.37°N, 24.50°EViivikonna — 59.44°N, 26.27°EViivikonna — 59.41°N, 26.45°EViivikonna — 59.31°N, 25.68°EDalby — 57.00°N, 17.00°EDalby — 61.00°N, 15.00°EFjacka Shale — 61.00°N, 15.00°EFjacka Shale — 60.00°N, 16.00°EKilley Bridge — 54.60°N, 6.88°WBalclatchie — 55.23°N, 4.87°WKarstai — 55.57°N, 26.65°EZaouïa Schists — 36.89°N, 3.98°EKõrgekallas — 59.43°N, 24.83°E

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The named rock units Actinomena has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Actinomena and its relatives

Ordovician

Where Actinomena and its relatives were recorded in the Ordovician.

Found in the same rock

216 taxa

The Paleobiology Database records 23 sites for Actinomena, 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

8 references

Each of the 23 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

Picture of Actinomena

Source
GBIF
Credit
W. H. Burkholder
Licence
CC0
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 itStrophomeninae through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Opik 1930