Stichocystis geometrica

via iDigBio · 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
- StichocystisPBDB
- Diet
- suspension feederPBDB, for Rhombifera
- Life habit
- intermediate-level epifaunalPBDB, for Rhombifera
- Motility
- stationary, attachedPBDB, for Rhombifera
- Vision
- blindPBDB, for Rhombifera
- Environment
- marinePBDB, for Echinodermata
Time the record covers
At most 2.1 million years on record.
Every occurrence read is dated to somewhere between 453.9 Mya and 451.8 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
2 occurrences of Stichocystis geometrica 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
2 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
1 formation
Loading coastlines…
The named rock units Stichocystis geometrica has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Stichocystis geometrica and its relatives
OrdovicianWhere Stichocystis geometrica and its relatives were recorded in the Ordovician.
Found in the same rock
88 taxa- Cameroceras2 sites
- Caryocystites lagenalis2 sites
- Ceraurus latifrons2 sites
- Cleionychia primitiva2 sites
- Discoceras amtjaernense2 sites
- Furudaloceras tomtei2 sites
- Hemisphaerocoryphe granulata2 sites
- Hoeloceras muroni2 sites
- Illaenus2 sites
- Illaenus gigas2 sites
- Isorthoceras2 sites
- Isorthoceras sylphide2 sites
- Orbiculoidea kullsbergensis2 sites
- Ordogeisonoceras tartuensis2 sites
- Ordogeisonoceras uppsalaensis2 sites
- Parillaenus fallax2 sites
- Platylichas lingua2 sites
- Pleurorthoceras2 sites
- Prionocheilus foveolatum2 sites
- Sphaerexochus hisingeri2 sites
- Striatocycloceras2 sites
- Acidaspis1 site
- Actinopterinia semicircularis1 site
- Allumettoceras mjoesense1 site
The Paleobiology Database records 2 sites for Stichocystis geometrica, 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
2 references- A re-evaluation of the Ordovician cystoid Stichocystis Jaekel and the taxonomic implications1
- Non-Crinoid Pelmatozoa from the Paleozoic of Sweden1
Each of the 2 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 Stichocystis geometrica
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
No 3D scan of Stichocystis geometrica 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 itStichocystis through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Angelin 1878)