Cyclonema varispirum

Cyclonema varispirum

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
CyclonemaPBDB
Diet
coprophage, deposit feederPBDB, for Cyclonema
Life habit
epifaunalPBDB, for Cyclonema
Motility
facultatively mobile, epibiontPBDB, for Cyclonema
Vision
limitedPBDB, for Gastropoda
Environment
marinePBDB, for Platyceratidae

Time the record covers

At most 4.1 million years on record.

Every occurrence read is dated to somewhere between 449.6 Mya and 445.5 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Ordovician — about 2 of 2 occurrencesOrdovician450–450 Mya — about 0.0 occurrences450–449 Mya — about 0.1 occurrences449–449 Mya — about 0.1 occurrences449–449 Mya — about 0.1 occurrences449–449 Mya — about 0.1 occurrences449–449 Mya — about 0.1 occurrences449–449 Mya — about 0.1 occurrences449–448 Mya — about 0.1 occurrences448–448 Mya — about 0.1 occurrences448–448 Mya — about 0.1 occurrences448–448 Mya — about 0.1 occurrences448–448 Mya — about 0.1 occurrences448–448 Mya — about 0.1 occurrences448–447 Mya — about 0.1 occurrences447–447 Mya — about 0.1 occurrences447–447 Mya — about 0.1 occurrences447–447 Mya — about 0.1 occurrences447–447 Mya — about 0.1 occurrences447–447 Mya — about 0.1 occurrences447–446 Mya — about 0.1 occurrences446–446 Mya — about 0.1 occurrences446–446 Mya — about 0.1 occurrences446–446 Mya — about 0.1 occurrences446–446 Mya — about 0.1 occurrences446–446 Mya — about 0.1 occurrences446–445 Mya — about 0.0 occurrences450.1 Mya445 Mya

2 occurrences of Cyclonema varispirum 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

2 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

2 formations

Vauréal — 49.93°N, 64.13°WVaureal — 49.67°N, 62.92°W

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

Cyclonema varispirum and its relatives

Ordovician

Where Cyclonema varispirum and its relatives were recorded in the Ordovician.

Found in the same rock

54 taxa

The Paleobiology Database records 2 sites for Cyclonema varispirum, 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

1 reference

Each of the 2 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 content1

Picture of Cyclonema varispirum

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

No 3D scan of Cyclonema varispirum 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 itCyclonema through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Twenhofel 1928