Xenocrinus
No picture of Xenocrinus 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 Xenocrinus, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- XenocrinidaePBDB
- Diet
- suspension feederPBDB, for Monobathrida
- Life habit
- upper-level epifaunalPBDB, for Monobathrida
- Motility
- stationary, attachedPBDB, for Monobathrida
- Vision
- blindPBDB, for Crinoidea
- Environment
- marinePBDB, for Echinodermata
Time the record covers
At least 5 million years on record.
The record covers at least 445.5 Mya to 440.5 Mya. No occurrence read is dated outside 452.8 Mya to 432.9 Mya.
37 occurrences of Xenocrinus 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
37 occurrences- Ordovician95%
- Silurian5%
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
12 formations
- Ellis Bay Formation · Jolliet Group10
- Waynesville Formation8
- Bull Fork Formation6
- Liberty Formation2
- Oregonia Formation2
- South Threave Formation · Drummock Group2
Loading coastlines…
The named rock units Xenocrinus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.
Xenocrinus and its relatives
OrdovicianWhere Xenocrinus and its relatives were recorded in the Ordovician.
Found in the same rock
161 taxa- Trepostomata12 sites
- Platystrophia11 sites
- Bryozoa10 sites
- Rafinesquina alternata10 sites
- Hebertella occidentalis8 sites
- Isotelus8 sites
- Cincinnaticrinus7 sites
- Flexicalymene6 sites
- Costatulites richmondensis5 sites
- Cyclonema5 sites
- Dalmanella5 sites
- Flexicalymene meeki5 sites
- Zygospira modesta5 sites
- Ambonychia4 sites
- Dendrocrinus4 sites
- Leptaena richmondensis4 sites
- Pterinea4 sites
- Strophomena4 sites
- Cincinnetina meeki3 sites
- Grewingkia3 sites
- Nautiloidea3 sites
- Pterinea demissa3 sites
- <Dendrocystitid>2 sites
- Anartiocystis2 sites
The Paleobiology Database records 32 sites for Xenocrinus, 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
10 references- Gradient ecology of a biotic invasion: biofacies of the type Cincinnatian Series (Upper Ordovician), Cincinnati, Ohio region, USA16
- The Crinoidea of Anticosti Island, Quebec (Late Ordovician to Early Silurian)8
- New taxa and revised stratigraphic distribution of the crinoid fauna from Anticosti Island, Québec, Canada (Late Ordovician-early Silurian)5
- Upper Mississippi Valley Champlainian and Cincinnatian echinoderms2
- Edrioasteroids on corals: Taphonomic feedback and sedimentary processescontrol the ecology of a Late Ordovician (Katian: Cincinnatian,Richmondian) community in central Kentucky, USA1
- The paleoecology of a Late Ordovician shale unit from southwest Ohio and southeastern Indiana1
- Depositional occurrence of a Xenocrinus penicillus S.A. Miller (Crinoidea) bed in the Upper Ordovician of Southwestern Ohio1
- Upper Ordovician Xenocrinids (Crinoidea, Camerata) from Scotland1
- A monograph on British Ordovician Crinoidea1
- The fossil fauna of the Ordovician in the Cincinnati Region1
Each of the 37 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 Xenocrinus 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 Xenocrinus, or no answer at all. This entry cannot say which.
No 3D scan of Xenocrinus was found in MorphoSource and Sketchfab.
Smithsonian Open Access was 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 itXenocrinidae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Miller 1881