Bystromena perplexa

No picture of Bystromena perplexa was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Bystromena perplexa, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
BystromenaPBDB
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 million years on record.

Every occurrence read is dated to somewhere between 458.2 Mya and 457.2 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Ordovician — about 7 of 7 occurrencesOrdovician458–458 Mya — about 0.2 occurrences458–458 Mya — about 0.5 occurrences458–458 Mya — about 0.5 occurrences458–458 Mya — about 0.5 occurrences458–458 Mya — about 0.5 occurrences458–458 Mya — about 0.5 occurrences458–458 Mya — about 0.5 occurrences458–458 Mya — about 0.5 occurrences458–458 Mya — about 0.5 occurrences458–458 Mya — about 0.5 occurrences458–458 Mya — about 0.5 occurrences458–457 Mya — about 0.5 occurrences457–457 Mya — about 0.5 occurrences457–457 Mya — about 0.5 occurrences457–457 Mya — about 0.5 occurrences457–457 Mya — about 0.2 occurrences458.7 Mya456.7 Mya

7 occurrences of Bystromena perplexa 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

7 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

Spy Wood Grit — 52.67°N, 2.00°WSpy Wood Grit — 52.60°N, 3.03°W

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

Bystromena perplexa and its relatives

Ordovician

Where Bystromena perplexa and its relatives were recorded in the Ordovician.

Found in the same rock

21 taxa

The Paleobiology Database records 7 sites for Bystromena perplexa, 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

2 references

Each of the 7 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. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content0

No picture of Bystromena perplexa was found. Wikipedia, Wikidata and iDigBio were searched and had none.

Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Bystromena perplexa, or no answer at all. This entry cannot say which.

No 3D scan of Bystromena perplexa 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 itBystromena through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Williams 1974