Holocystites

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
- HolocystitidaePBDB
- Diet
- suspension feederPBDB, for Blastozoa
- Life habit
- epifaunalPBDB, for Blastozoa
- Motility
- stationaryPBDB, for Blastozoa
- Environment
- marinePBDB, for Echinodermata
Time the record covers
At least 10 million years on record.
The record covers at least 443.1 Mya to 432.9 Mya. No occurrence read is dated outside 445.2 Mya to 422.7 Mya.
43 occurrences of Holocystites 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
43 occurrences- Ordovician5%
- Silurian95%
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
13 formations
- Osgood Shale Formation10
- Racine Formation7
- Osgood Formation7
- Waukesha Dolomite Formation4
- Osgood Limestone Formation3
- Salamonie Dolomite Formation2
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The named rock units Holocystites has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Holocystites and its relatives
SilurianWhere Holocystites and its relatives were recorded in the Silurian.
Found in the same rock
361 taxa- Caryocrinites14 sites
- Eucalyptocrinites14 sites
- Atrypa10 sites
- Bryozoa10 sites
- Lecanocrinus10 sites
- Dawsonoceras8 sites
- Plectatrypa8 sites
- Anastrophia7 sites
- Calliocrinus7 sites
- Eospirifer radiatus7 sites
- Favosites7 sites
- Lyriocrinus7 sites
- Lysocystites7 sites
- Macrostylocrinus7 sites
- Periechocrinus7 sites
- Pisocrinus7 sites
- Stegerhynchus7 sites
- Astraeospongium6 sites
- Bumastus6 sites
- Dalmanites6 sites
- Dimerocrinites6 sites
- Kionoceras6 sites
- Marsupiocrinus6 sites
- Platyceras6 sites
The Paleobiology Database records 24 sites for Holocystites, 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
8 references- Caradocian-Gedinnian echinoderm associations of Central and Eastern North America21
- Revision of the Holocystites fauna (Diploporita) of North America7
- The Silurian (Wenlockian) reef fauna of Southeastern Wisconsin5
- Osgood (Niagaran) bryozoans from the type area5
- Late Ordovician (Hirnantian) diploporitan fauna of Anticosti Island, Quebec, Canada: implications for evolutionary and biogeographic patterns2
- The North American Holocystites Fauna (Echinodermata: Blastozoa: Diploporita): Paleobiology and Systematics1
- Silurian reefs of northern Indiana: reef and interreef macrofaunas1
- Description of three new orders and four new families, in the class Echinodermata, and eight new species from the Silurian and Devonian formations1
Each of the 43 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 content2

Picture of Holocystites
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
3D model
- Source
- Sketchfab
- Credit
- John Merck
- Licence
- CC Attribution
- Commercial use
- cannot be read from the licence given — check the record
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 itHolocystitidae through timeFormations of the SilurianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Hall 1864