Trematocystis

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 3.9 million years on record.
The record covers at least 430.6 Mya to 426.7 Mya. No occurrence read is dated outside 438.6 Mya to 422.7 Mya.
6 occurrences of Trematocystis 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
6 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
4 formations
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The named rock units Trematocystis has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Trematocystis and its relatives
SilurianWhere Trematocystis and its relatives were recorded in the Silurian.
Found in the same rock
110 taxa- Bryozoa3 sites
- Favosites3 sites
- Holocystites (Holocystites) alternatus3 sites
- Astraeospongium2 sites
- Atrypa reticularis2 sites
- Caryocrinites2 sites
- Cupulocorona2 sites
- Cupulocorona gemmiformis2 sites
- Dicoelosia2 sites
- Eucalyptocrinites2 sites
- Ferganella2 sites
- Lecanocrinus2 sites
- Lyriocrinus2 sites
- Merista2 sites
- Nautiloidea2 sites
- Pisocrinus2 sites
- Plectatrypa2 sites
- Pustulocystis ornatissimus2 sites
- Skenidioides2 sites
- Stephanocrinus2 sites
- Thalamocrinus2 sites
- Triamara2 sites
- Triamara ventricosa2 sites
- Allocystites1 site
The Paleobiology Database records 6 sites for Trematocystis, 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
4 references- The North American Holocystites Fauna (Echinodermata: Blastozoa: Diploporita): Paleobiology and Systematics2
- Caradocian-Gedinnian echinoderm associations of Central and Eastern North America2
- Late Silurian echinoderms from the Yass Basin, New South Wales - the earliest holothurian body fossil and two diploporitan cystoids (Sphaeronitidae and Holocystitidae)1
- Revision of the Holocystites fauna (Diploporita) of North America1
Each of the 6 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 Trematocystis
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Trematocystis 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 itHolocystitidae through timeFormations of the SilurianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Miller 1878