Palaeocrinus
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
- PorocrinidaPBDB
- Diet
- suspension feederPBDB, for Cladida
- Life habit
- intermediate-level epifaunalPBDB, for Cladida
- Motility
- stationary, attachedPBDB, for Cladida
- Vision
- blindPBDB, for Crinoidea
- Environment
- marinePBDB, for Echinodermata
Time the record covers
At least 5.4 million years on record.
The record covers at least 458.2 Mya to 452.8 Mya. No occurrence read is dated outside 471.3 Mya to 445.2 Mya.
17 occurrences of Palaeocrinus 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
17 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
10 formations
- Bromide Formation4
- Ottawa Formation · Trenton Group4
- Benbolt Formation2
- Laval Formation1
- Pierce Limestone Formation1
- Decorah Shale Formation1
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The named rock units Palaeocrinus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Palaeocrinus and its relatives
OrdovicianWhere Palaeocrinus and its relatives were recorded in the Ordovician.
Found in the same rock
230 taxa- Archaeocrinus6 sites
- Carabocrinus6 sites
- Diabolocrinus5 sites
- Hybocrinus5 sites
- Apodasmocrinus4 sites
- Platycystites4 sites
- Cyathocystis3 sites
- Acolocrinus2 sites
- Amygdalocystites florealis2 sites
- Astrocystites2 sites
- Bumastus2 sites
- Camerella2 sites
- Cleiocrinus2 sites
- Cyclocystoides2 sites
- Dendrocrinus2 sites
- Edriophus2 sites
- Eurychilina2 sites
- Foerstediscus2 sites
- Glyptocystella2 sites
- Hallopora2 sites
- Hesperorthis2 sites
- Hesperorthis tricenaria2 sites
- Isotelus2 sites
- Liospira americana2 sites
The Paleobiology Database records 11 sites for Palaeocrinus, 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
11 references- On the Crinoideae of the Lower Silurian rocks of Canada4
- Echinoderm zones and faunas3
- Macurdablastus, a Middle Ordovician Blastoid from the Southern Appalachians2
- The Middle Ordovician crinoid fauna of the Twin Cities area1
- Previous studies of Bromide echinoderms1
- Middle to late Ordovician fossiliferous rocks of the Montreal area1
- Middle Ordovician crinoids from southwestern Virginia and eastern Tennessee1
- Palaeozoic geology of the Lake Simcoe Area, Ontario1
- Pre-Chattanooga stratigraphy in Central Tennessee1
- Miller, 18891
- Report for the year 18561
Each of the 17 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 Palaeocrinus
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itPorocrinida through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Billings 1859