Archaeocidaridae

Didier Descouens · CC BY-SA 4.0 · via Wikidata/Commons. 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
- EchinoideaPBDB
- Diet
- grazer, deposit feederPBDB, for Echinoidea
- Life habit
- epifaunalPBDB, for Echinoidea
- Motility
- actively mobilePBDB, for Echinoidea
- Vision
- limitedPBDB, for Echinoidea
- Environment
- marinePBDB, for Echinodermata
Time the record covers
At least 170 million years on record.
The record covers at least 422.7 Mya to 251.902 Mya. No occurrence read is dated outside 426.7 Mya to 201.4 Mya.
132 occurrences of Archaeocidaridae on record, most of them in the Carboniferous. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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
132 occurrences- Silurianunder 1%
- Devonian14%
- Carboniferous51%
- Permian33%
- Early Triassicunder 1%
- Middle Triassicunder 1%
- Late Triassic1%
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
44 formations
- Kaibab Formation13
- Second Abden Shale Formation11
- Honaker Trail Formation10
- Pottawatomie Formation6
- Minturn Formation5
- Supai Formation5
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The named rock units Archaeocidaridae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 20 further formations hold fewer occurrences each and are not listed. 21 occurrences have no formation on record, which is common for older literature.
Archaeocidaridae and its relatives
CarboniferousWhere Archaeocidaridae and its relatives were recorded in the Carboniferous.
Found in the same rock
1,326 taxa- Archaeocidaris99 sites
- Crinoidea41 sites
- Bryozoa18 sites
- Ostracoda17 sites
- Eomarginifera longispinus15 sites
- Fenestella15 sites
- Crurithyris urei13 sites
- Penniretepora13 sites
- Aviculopecten12 sites
- Composita12 sites
- Composita subtilita12 sites
- Derbyia12 sites
- Punctospirifer12 sites
- Dielasma11 sites
- Gastropoda11 sites
- Peniculauris bassi11 sites
- Kirkbya10 sites
- Lophophyllidium profundum10 sites
- Rhombopora10 sites
- Rugosa10 sites
- Schuchertella10 sites
- Chonetes9 sites
- Crurithyris9 sites
- Crurithyris planoconvexa9 sites
The Paleobiology Database records 118 sites for Archaeocidaridae, 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
51 references- The environment and history of the Toroweap and Kaibab Formations of northern Arizona and southern Utah16
- Oekologie und Fazies des juengsten Ober-Devon von Velbert (Rheinisches Schiefergebirge)12
- The paleoecology of a Lower Carboniferous marine transgression11
- Paleoecology and paleoenvironment of the upper Honaker Trail Formation near Moab, Utah10
- Coal Measures faunal studies. I.8
- The first Pennsylvanian batocrinid and other new echinoderms from the Minturn Formation of central Colorado5
- Supai Formation (Permian) of eastern Arizona5
- A diverse assemblage of Permian echinoids (Echinodermata, Echinoidea) and implications for character evolution in early crown group echinoids3
- Schischcatella (Fenestrata, Bryozoa) from the Devonian of the Rhenish Massif, Germany3
- Brachiopods of the suborder Strophomenidina from the Shumway Cyclothem, Mattoon Formation, Virgilian of Illinois.3
- Upper Paleozoic of Peru3
- The fauna of the Wewoka Formation of Oklahoma3
Each of the 132 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. 39 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 Archaeocidaridae
- Source
- Wikidata/Commons
- Credit
- Didier Descouens
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
No 3D scan of Archaeocidaridae 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 itEchinoidea through timeFormations of the CarboniferousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. M'Coy 1844