Archaeocidaris

Archaeocidaris is an extinct genus of echinoid that lived from the Late Devonian to the Late Permian. Its remains have been found in Africa, Europe, and North America.

Archaeocidaris

Didier Descouens · CC BY-SA 4.0 · via Wikipedia/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
ArchaeocidaridaePBDB
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 136 million years on record.

The record covers at least 387.95 Mya to 251.902 Mya. No occurrence read is dated outside 393.47 Mya to 201.4 Mya.

Devonian — about 9 of 111 occurrencesDevonianCarboniferous — about 63 of 111 occurrencesCarboniferousPermian — about 37 of 111 occurrencesPermianEarly Triassic — about 0 of 111 occurrencesMiddle Triassic — about 0 of 111 occurrencesLate Triassic — about 1 of 111 occurrencesLate TriassicEarly Jurassic — about 0 of 111 occurrences397–391 Mya — about 0.5 occurrences391–384 Mya — about 0.5 occurrences384–377 Mya — about 1 occurrence377–371 Mya — about 0.6 occurrences371–364 Mya — about 3 occurrences364–357 Mya — about 4 occurrences357–351 Mya — about 0.6 occurrences351–344 Mya — about 1.0 occurrences344–337 Mya — about 5 occurrences337–331 Mya — about 12 occurrences331–324 Mya — about 2 occurrences324–317 Mya — about 4 occurrences317–311 Mya — about 8 occurrences311–304 Mya — about 19 occurrences304–297 Mya — about 12 occurrences297–291 Mya — about 2 occurrences291–284 Mya — about 1 occurrence284–277 Mya — about 15 occurrences277–271 Mya — about 8 occurrences271–264 Mya — about 5 occurrences264–257 Mya — about 3 occurrences257–251 Mya — about 1 occurrence251–244 Mya — about 0.3 occurrences244–238 Mya — about 0.3 occurrences238–231 Mya — about 0.3 occurrences231–224 Mya — about 0.3 occurrences224–218 Mya — about 0.3 occurrences218–211 Mya — about 0.3 occurrences211–204 Mya — about 0.3 occurrences204–198 Mya — about 0.1 occurrences387.95 Mya251.902 Mya397 Mya198 Mya

111 occurrences of Archaeocidaris 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

111 occurrences

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

35 formations

Kaibab — 35.17°N, 111.50°WKaibab — 34.62°N, 111.09°WKaibab — 34.55°N, 111.24°WKaibab — 34.44°N, 111.28°WKaibab — 34.49°N, 111.38°WKaibab — 34.87°N, 111.68°WKaibab — 35.07°N, 111.96°WKaibab — 36.33°N, 113.04°WSecond Abden Shale — 56.07°N, 3.17°WHonaker Trail — 38.58°N, 109.58°WPottawatomie — 39.16°N, 94.48°WPottawatomie — 39.05°N, 94.67°WPottawatomie — 38.94°N, 95.10°WMinturn — 39.92°N, 106.72°WMinturn — 39.92°N, 106.77°WSupai — 33.99°N, 110.35°WSupai — 33.83°N, 109.86°WSupai — 33.93°N, 110.19°WSupai — 33.94°N, 110.11°WToroweap — 35.58°N, 112.58°WToroweap — 35.40°N, 112.96°WToroweap — 36.33°N, 113.04°WToroweap — 35.83°N, 115.43°WSalem Limestone — 37.49°N, 85.34°WSalem Limestone — 37.31°N, 85.44°WSalem Limestone — 37.26°N, 85.34°WMattoon — 39.12°N, 88.57°WWewoka — 34.90°N, 96.43°WWewoka — 35.02°N, 96.33°WWewoka — 34.87°N, 96.47°WEtroeungt — 51.33°N, 7.05°EWinchell — 31.84°N, 99.00°WBell Canyon — 31.90°N, 104.82°WWolf Mountain — 33.21°N, 97.83°WBellerophon — 43.71°N, 18.75°EDouglas — 39.01°N, 95.25°WCameron Creek — 46.37°N, 109.18°WAmsden — 41.81°N, 107.30°WWhite Pine Shale — 39.23°N, 113.60°WHillsdale Limestone — 36.75°N, 82.25°WBeaulieu — 50.83°N, 1.77°EBird Spring — 36.60°N, 114.79°WClifton Down Limestone — 51.18°N, 2.43°WBelden Shale — 39.18°N, 106.16°W

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The named rock units Archaeocidaris has been recovered from, largest first. Drawn where the rock is now, not where it formed. 11 further formations hold fewer occurrences each and are not listed. 17 occurrences have no formation on record, which is common for older literature.

Archaeocidaris and its relatives

Carboniferous

Where Archaeocidaris and its relatives were recorded in the Carboniferous.

Found in the same rock

1,085 taxa

The Paleobiology Database records 107 sites for Archaeocidaris, 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

41 references

Each of the 111 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. 29 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 content2

Picture of Archaeocidaris

Credit
Didier Descouens
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

3D model

Source
Sketchfab
Licence
CC0 Public Domain
Commercial use
the licence allows it

Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.

The description on this site

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 itArchaeocidaridae through timeFormations of the CarboniferousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. M'Coy 1844