Psilacella

Psilacella

via iDigBio · CC BY · 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
CyclopygidaePBDB
Diet
microcarnivorePBDB, for Cyclopygidae
Life habit
nektonicPBDB, for Cyclopygidae
Motility
actively mobilePBDB, for Cyclopygidae
Vision
well-developedPBDB, for Cyclopygidae
Environment
marinePBDB, for Trilobita

Time the record covers

At least 19 million years on record.

The record covers at least 468 Mya to 448.8 Mya. No occurrence read is dated outside 477.1 Mya to 445.2 Mya.

Ordovician — about 2 of 2 occurrencesOrdovician478–477 Mya — about 0.1 occurrences477–476 Mya — about 0.1 occurrences476–474 Mya — about 0.1 occurrences474–473 Mya — about 0.1 occurrences473–472 Mya — about 0.1 occurrences472–471 Mya — about 0.1 occurrences471–470 Mya — about 0.1 occurrences470–469 Mya — about 0.1 occurrences469–468 Mya — about 0.1 occurrences449–448 Mya — about 0.3 occurrences448–447 Mya — about 0.3 occurrences447–446 Mya — about 0.3 occurrences446–445 Mya — about 0.1 occurrences468 Mya448.8 Mya477.7 Mya444.6 Mya

2 occurrences of Psilacella 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

1 formation

Pontyfenni — 52.00°N, 5.00°W

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The named rock units Psilacella has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Psilacella and its relatives

Ordovician

Where Psilacella and its relatives were recorded in the Ordovician.

Found in the same rock

46 taxa

The Paleobiology Database records 2 sites for Psilacella, 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

2 references

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. 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 Psilacella

Source
iDigBio
Credit
via iDigBio
Licence
CC BY
Commercial use
the licence allows it

No 3D scan of Psilacella was found in MorphoSource and Sketchfab.

Smithsonian Open Access was 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 itCyclopygidae through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Whittard 1952