Pachylocrinidae

Not Pachylocrinidae. This is Plummericrinus Moore & Laudon, 1943, a relative — both are Pachylocrinidae.
Wagner, Steve · CC BY 4.0 · via GBIF. 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
- ApographiocrinoideaPBDB
- 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 68 million years on record.
The record covers at least 358.86 Mya to 290.1 Mya. No occurrence read is dated outside 372.15 Mya to 283.3 Mya.
31 occurrences of Pachylocrinidae 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
31 occurrences- Devonian6%
- Carboniferous84%
- Permian10%
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
13 formations
- Muldraugh Formation8
- Edwardsville Formation6
- Barnsdall Formation · Lansing Group4
- Stanton Formation · Lansing Group3
- Bird Spring Formation2
- Hongguleleng Formation1
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The named rock units Pachylocrinidae has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Pachylocrinidae and its relatives
CarboniferousWhere Pachylocrinidae and its relatives were recorded in the Carboniferous.
Found in the same rock
459 taxa- Platycrinites17 sites
- Dielasma13 sites
- Taxocrinus12 sites
- Onychocrinus11 sites
- Scytalocrinus10 sites
- Barycrinus9 sites
- Cladochonus9 sites
- Pachylocrinus aequalis9 sites
- Cyathocrinites multibrachiatus8 sites
- Dizygocrinus8 sites
- Gilbertsocrinus tuberosus8 sites
- Pachylocrinus8 sites
- Paradichocrinus8 sites
- Pirasocrinidae8 sites
- Plummericrinus8 sites
- Protoniella8 sites
- Scytalocrinidae8 sites
- Stellarocrinus8 sites
- Abrotocrinus7 sites
- Ampelocrinidae7 sites
- Apographiocrinus7 sites
- Aviculopecten7 sites
- Cromyocrinidae7 sites
- Cyathocrinites7 sites
The Paleobiology Database records 29 sites for Pachylocrinidae, 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
14 references- Filtration models, guilds, and biofacies: crinoid paleoecology of the Stanton Formation (Upper Pennsylvanian), Midcontinent, North America7
- Paleontology and paleoecology of the Crawfordsville fossil site (Upper Osagian: Indiana)7
- Community Organization, Paleontology, and Sedimentology of the Lower Mississippian Borden Delta Platform (Edwardsville Formation, Southern Indiana)4
- New Permian crinoids from the Battleship Wash patch reef in southern Nevada2
- Fossil communities of the Borden (Mississippi) delta in Indiana and northern Kentucky2
- Famennian crinoids and blastoids (Echinodermata) from Mongolia1
- A new crinoid fauna from the Taiyuan Formation (early Permian) of Henan, North China1
- Cladid crinoids from the Late Kinderhookian Meadville Shale, Cuyahoga Formation of Ohio1
- Crinoids from the Muldraugh Member of the Borden Formation in north-central Kentucky (Echinodermata, Lower Mississippian)1
- Echinoderm faunas of the Hongguleleng Formation, Late Devonian (Famennian), Xinjiang-Uyger Autonomous Region, People''s Republic of China1
- Lower Pennsylvanian (Morrowan) crinoids from Arkansas, Oklahoma, and Texas1
- Crinoids of the LaSalle Limestone (Pennsylvanian) of Illinois1
Each of the 31 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. 2 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 Plummericrinus Moore & Laudon, 1943
- Source
- GBIF
- Credit
- Wagner, Steve
- Licence
- CC BY 4.0
- Commercial use
- the licence allows it
No 3D scan of Pachylocrinidae 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 itApographiocrinoidea through timeFormations of the CarboniferousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Kirk 1942