Strophomena (Keilamena) occidens

Strophomena occidens (Oraspold, 1956), a relative of Strophomena (Keilamena) occidens — not Strophomena (Keilamena) occidens itself

Not Strophomena (Keilamena) occidens. This is Strophomena occidens (Oraspold, 1956), a relative — both are Strophomenidae.

Männil, Ralf · 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
Strophomena (Keilamena)PBDB
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 most 1.1 million years on record.

Every occurrence read is dated to somewhere between 453.9 Mya and 452.8 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Ordovician — about 14 of 14 occurrencesOrdovician454–454 Mya — about 0.8 occurrences454–454 Mya — about 0.9 occurrences454–454 Mya — about 0.9 occurrences454–454 Mya — about 0.9 occurrences454–454 Mya — about 0.9 occurrences454–453 Mya — about 0.9 occurrences453–453 Mya — about 0.9 occurrences453–453 Mya — about 0.9 occurrences453–453 Mya — about 0.9 occurrences453–453 Mya — about 0.9 occurrences453–453 Mya — about 0.9 occurrences453–453 Mya — about 0.9 occurrences453–453 Mya — about 0.9 occurrences453–453 Mya — about 0.9 occurrences453–453 Mya — about 0.9 occurrences453–453 Mya — about 0.8 occurrences454.4 Mya452.3 Mya

14 occurrences of Strophomena (Keilamena) occidens 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

14 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

1 formation

Kahula — 59.32°N, 24.60°EKahula — 59.36°N, 24.87°EKahula — 59.30°N, 24.38°EKahula — 59.37°N, 24.64°EKahula — 59.24°N, 24.29°E

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The named rock units Strophomena (Keilamena) occidens has been recovered from, largest first. Drawn where the rock is now, not where it formed. 7 occurrences have no formation on record, which is common for older literature.

Strophomena (Keilamena) occidens and its relatives

Ordovician

Where Strophomena (Keilamena) occidens and its relatives were recorded in the Ordovician.

Found in the same rock

16 taxa

The Paleobiology Database records 13 sites for Strophomena (Keilamena) occidens, and this reads all of them. The number is how many of those sites it was catalogued from too.

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 14 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 Strophomena occidens (Oraspold, 1956)

Source
GBIF
Credit
Männil, Ralf
Licence
CC BY-NC 4.0
Commercial use
the licence does not allow it

No 3D scan of Strophomena (Keilamena) occidens was found in Sketchfab.

Smithsonian Open Access and MorphoSource were 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 itStrophomena (Keilamena) through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Oraspold 1956)