Praetetracrinus inornatus
No picture of Praetetracrinus inornatus was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Praetetracrinus inornatus, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- PraetetracrinusPBDB
- Diet
- suspension feederPBDB, for Cyrtocrinida
- Life habit
- epifaunalPBDB, for Cyrtocrinida
- Motility
- stationaryPBDB, for Cyrtocrinida
- Vision
- blindPBDB, for Crinoidea
- Environment
- marinePBDB, for Echinodermata
Time the record covers
At most 22 million years on record.
Every occurrence read is dated to somewhere between 192.9 Mya and 170.9 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
4 occurrences of Praetetracrinus inornatus on record, most of them in the Early Jurassic. 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 occurrencesThese 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.
Praetetracrinus inornatus and its relatives
Early JurassicWhere Praetetracrinus inornatus and its relatives were recorded in the Early Jurassic.
Found in the same rock
15 taxa- Praetetracrinus kutscheri3 sites
- Mesophiomusium geisingense2 sites
- Mesophiomusium scabrum2 sites
- Ophiacantha dorecki2 sites
- Ophiacantha toarcensis2 sites
- Ophiarachna liasica2 sites
- Ophiocten seeweni2 sites
- Ophiopetra oertlii2 sites
- Ophiotrapezium spinulosum2 sites
- Ophiura astonensis2 sites
- Shroshaecrinus quedlinburgensis2 sites
- Sigsbeia lunaris2 sites
- Sinosura brodiei2 sites
- Sinosura schneideri2 sites
- Ophiopholis trispinosa1 site
The Paleobiology Database records 3 sites for Praetetracrinus inornatus, 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- Echinodermata aus dem Ober-Toarcium und Aalenium Deutschlands I. Crinoidea: Cyrtocrinina und Millericrinina3
- Emergence and early radiation of cyrtocrinids, with new species from a Lower to Middle Jurassic rock reef of Feuguerolles (Normandy, France)1
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 content0
No picture of Praetetracrinus inornatus was found. Wikipedia, Wikidata and iDigBio were searched and had none.
Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Praetetracrinus inornatus, or no answer at all. This entry cannot say which.
No 3D scan of Praetetracrinus inornatus 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 itPraetetracrinus through timeFormations of the Early JurassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Simms 1989)