Caleidocrinus
Searched as Caleidocrinus artifex. The Paleobiology Database treats Caleidocrinus as the accepted name.
Caleidocrinus is a genus of sea lily that lived during the Middle and early Upper Ordovician in what is now the Czech Republic and Wales.

Dwergenpaartje · 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
- IocrinidaePBDB
- Diet
- suspension feederPBDB, for Disparida
- Life habit
- intermediate-level epifaunalPBDB, for Disparida
- Motility
- stationary, attachedPBDB, for Disparida
- Vision
- blindPBDB, for Crinoidea
- Environment
- marinePBDB, for Echinodermata
Time the record covers
At most 15 million years on record.
Every occurrence read is dated to somewhere between 459.3 Mya and 445.2 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
3 occurrences of Caleidocrinus 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
3 occurrences- Ordovician100%
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
Loading coastlines…
The named rock units Caleidocrinus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Caleidocrinus and its relatives
OrdovicianWhere Caleidocrinus and its relatives were recorded in the Ordovician.
Found in the same rock
122 taxa- Calymenella2 sites
- Drabovia2 sites
- Hirnantia2 sites
- Kloucekia phillipsi2 sites
- Palaeoneilo2 sites
- Rafinesquina2 sites
- Actinopeltis completa1 site
- Aegiromena aquila1 site
- Anaconularia1 site
- Anatifopsis bohemica1 site
- Antispira praecox1 site
- Archaeoconularia1 site
- Archaeoconularia insignis1 site
- Ascocystites1 site
- Ascocystites micraster1 site
- Asinomphalus antiqua1 site
- Batostoma1 site
- Batostoma fertile1 site
- Bicuspina1 site
- Bicuspina multicostellata1 site
- Bucanopsina calypso1 site
- Bucanopsis comata1 site
- Caryon1 site
- Cefnocrinus samgilmouri1 site
The Paleobiology Database records 3 sites for Caleidocrinus, 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 referenceEach of the 3 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 the Paleobiology Database's own record for the work.
Media and terms
Media content1
Picture of Caleidocrinus
- Source
- Wikipedia/Commons
- Credit
- Dwergenpaartje
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
No 3D scan of Caleidocrinus 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 itIocrinidae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Jahn 1893