Delocrinus
Delocrinus is a genus of extinct crinoids, belonging to the family Catacrinidae. Specimens have been found in Kansas, Missouri, Nebraska, Nevada, Oklahoma, Arizona, Iowa, Texas, Utah and Virginia.
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
- ArticuliformesPBDB
- 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 70 million years on record.
The record covers at least 335.4 Mya to 264.9 Mya. No occurrence read is dated outside 342.9 Mya to 251.902 Mya.
57 occurrences of Delocrinus on record, most of them in the Carboniferous. 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
57 occurrences- Carboniferous75%
- Permian25%
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
23 formations
- Stanton Formation · Lansing Group12
- Barnsdall Formation · Lansing Group7
- Wewoka Formation7
- Kanwaka Formation · Shawnee Group6
- Wolf Mountain Formation · Canyon Group4
- Bird Spring Formation3
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The named rock units Delocrinus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Delocrinus and its relatives
CarboniferousWhere Delocrinus and its relatives were recorded in the Carboniferous.
Found in the same rock
270 taxa- Erisocrinus19 sites
- Apographiocrinus17 sites
- Pirasocrinidae17 sites
- Cibolocrinus16 sites
- Elibatocrinus16 sites
- Exoriocrinus16 sites
- Scytalocrinidae16 sites
- Stellarocrinus16 sites
- Cymbiocrinidae15 sites
- Stenopecrinidae indet.14 sites
- Ampelocrinidae13 sites
- Cromyocrinidae13 sites
- Exocrinus13 sites
- Kallimorphocrinus12 sites
- Laudonocrinidae11 sites
- Euonychocrinus10 sites
- Galateacrinus10 sites
- Paramphicrinus10 sites
- Ulocrinus10 sites
- Glaukosocrinus9 sites
- Graffhamicrinus8 sites
- Lecythiocrinus7 sites
- Plummericrinus7 sites
- Trepospira illinoisensis7 sites
The Paleobiology Database records 52 sites for Delocrinus, 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
19 references- Filtration models, guilds, and biofacies: crinoid paleoecology of the Stanton Formation (Upper Pennsylvanian), Midcontinent, North America19
- Taphonomic Analysis and Systematic Descriptions of Some Late Pennsylvanian and Early Permian Crinoids from Southeastern Nebraska, Eastern Kansas and Southwestern Iowa9
- The fauna of the Wewoka Formation of Oklahoma7
- Crinoid Studies Part I. Some Pennsylvanian crinoids from Nebraska. Part II. Some Permian crinoids from Nebraska, Kansas, and Oklahoma4
- Pennsylvanian crinoids from Lake Bridgeport, Texas3
- The fauna of the Morrow Group of Arkansas and Oklahoma2
- New Permian crinoids from the Battleship Wash patch reef in southern Nevada1
- PENNSYLVANIAN (LATE CARBONIFEROUS) ECHINOIDS FROM THE WINCHELL FORMATION, NORTH-CENTRAL TEXAS, USA1
- New crinoids from the Naco Formation (Middle Pennsylvanian) of Arizona and a revision of the Family Cromyocrinidae1
- Delocrinus vastus Lane and Webster from the Hughes Creek Shale (Lower Permian), Richardson County, Nebraska1
- Biostratigraphy of the Graford Formation, Missourian, Wise County, Texas1
- Paleoecology and paleoenvironment of the upper Honaker Trail Formation near Moab, Utah1
Each of the 57 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. 7 further references are not listed. 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 Delocrinus
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Delocrinus 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.
The description on this site
- Source
- Wikipedia, “Delocrinus”
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itArticuliformes through timeFormations of the CarboniferousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Miller and Gurley 1890