Crinozoa

Crinozoa is a subphylum of mostly sessile echinoderms, of which the crinoids, or sea lilies and feather stars, are the only extant members. Crinozoans have an extremely extensive fossil history.

Crinozoa

Alexander Vasenin · CC BY-SA 3.0 · via Wikipedia/Commons. 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
EchinodermataPBDB
Environment
marinePBDB, for Echinodermata

Time the record covers

At least 351 million years on record.

The record covers at least 372.15 Mya to 20.45 Mya. No occurrence read is dated outside 382.31 Mya to 15.98 Mya.

Devonian — about 1 of 5 occurrencesCarboniferous — about 3 of 5 occurrencesCarboniferousPermian — about 0 of 5 occurrencesEarly Triassic — about 0 of 5 occurrencesMiddle Triassic — about 0 of 5 occurrencesLate Triassic — about 0 of 5 occurrencesEarly Jurassic — about 0 of 5 occurrencesMiddle Jurassic — about 0 of 5 occurrencesLate Jurassic — about 0 of 5 occurrencesEarly Cretaceous — about 0 of 5 occurrencesLate Cretaceous — about 0 of 5 occurrencesPaleocene — about 0 of 5 occurrencesEocene — about 0 of 5 occurrencesOligocene — about 0 of 5 occurrencesMiocene — about 1 of 5 occurrences390–377 Mya — about 0.5 occurrences377–364 Mya — about 0.5 occurrences364–352 Mya — about 0.2 occurrences352–339 Mya — about 0.8 occurrences339–326 Mya — about 1 occurrence326–313 Mya — about 0.5 occurrences21–8.7 Mya — about 1 occurrence372.15 Mya20.45 Mya390 Mya9 Mya

5 occurrences of Crinozoa on record, most of them in the Carboniferous. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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

5 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

5 formations

Chemung — 42.20°N, 75.97°WPocono — 41.25°N, 78.65°WBolognano — 42.24°N, 14.04°EBragdon — 40.96°N, 122.28°WBaird — 40.94°N, 122.27°W

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

Crinozoa and its relatives

Carboniferous

Where Crinozoa and its relatives were recorded in the Carboniferous.

Found in the same rock

52 taxa

The Paleobiology Database records 5 sites for Crinozoa, 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

3 references

Each of the 5 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 Crinozoa

Credit
Alexander Vasenin
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan of Crinozoa 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.

The description on this site

Licence
CC BY-SA 4.0

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itEchinodermata through timeFormations of the CarboniferousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Matsumoto 1929