Holocystites cylindricus

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
- HolocystitesPBDB
- Diet
- suspension feederPBDB, for Blastozoa
- Life habit
- epifaunalPBDB, for Blastozoa
- Motility
- stationaryPBDB, for Blastozoa
- Environment
- marinePBDB, for Echinodermata
Time the record covers
At least 6.5 million years on record.
The record covers at least 439.4 Mya to 432.9 Mya. No occurrence read is dated outside 440.1 Mya to 426.7 Mya.
4 occurrences of Holocystites cylindricus on record, most of them in the Silurian. 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
4 occurrences- Silurian100%
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
3 formations
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The named rock units Holocystites cylindricus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Holocystites cylindricus and its relatives
SilurianWhere Holocystites cylindricus and its relatives were recorded in the Silurian.
Found in the same rock
14 taxa- Calymene1 site
- Caryocrinites1 site
- Cheirurus1 site
- Dalmanites1 site
- Dawsonoceras1 site
- Eucalyptocrinites1 site
- Holocystites (Holocystites) alternatus1 site
- Holocystites scutellatus1 site
- Illaenoides1 site
- Kionoceras1 site
- Nautiloidea1 site
- Scutellum1 site
- Triamara1 site
- Triamara ventricosa1 site
The Paleobiology Database records 4 sites for Holocystites cylindricus, 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- Revision of the Holocystites fauna (Diploporita) of North America3
- Caradocian-Gedinnian echinoderm associations of Central and Eastern North America1
Each of the 4 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 Holocystites cylindricus
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Holocystites cylindricus 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 itHolocystites through timeFormations of the SilurianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Hall 1861)