Miocidaris

Miocidaris is an extinct genus of miocidarid sea urchin that lived from the Permian to the Jurassic period.

Miocidaris

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
MiocidaridaePBDB
Diet
grazer, omnivorePBDB, for Cidaroida
Life habit
low-level epifaunalPBDB, for Cidaroida
Motility
slow-movingPBDB, for Cidaroida
Vision
limitedPBDB, for Echinoidea
Environment
marinePBDB, for Cidaroida

Time the record covers

At least 52 million years on record.

The record covers at least 251.902 Mya to 199.5 Mya. No occurrence read is dated outside 298.9 Mya to 192.9 Mya.

Carboniferous — about 0 of 49 occurrencesPermian — about 3 of 49 occurrencesPermianEarly Triassic — about 19 of 49 occurrencesMiddle Triassic — about 14 of 49 occurrencesMiddle TriassicLate Triassic — about 10 of 49 occurrencesLate TriassicEarly Jurassic — about 3 of 49 occurrencesEarly Jurassic301–297 Mya — about 0.1 occurrences297–294 Mya — about 0.2 occurrences294–290 Mya — about 0.2 occurrences290–286 Mya — about 0.2 occurrences286–283 Mya — about 0.2 occurrences283–279 Mya — about 0.2 occurrences279–275 Mya — about 0.2 occurrences275–272 Mya — about 0.2 occurrences272–268 Mya — about 0.2 occurrences268–264 Mya — about 0.2 occurrences264–261 Mya — about 0.2 occurrences261–257 Mya — about 0.2 occurrences257–253 Mya — about 0.6 occurrences253–250 Mya — about 0.7 occurrences250–246 Mya — about 20 occurrences246–242 Mya — about 7 occurrences242–239 Mya — about 4 occurrences239–235 Mya — about 4 occurrences235–231 Mya — about 3 occurrences231–228 Mya — about 3 occurrences228–224 Mya — about 0.4 occurrences224–220 Mya — about 0.2 occurrences220–217 Mya — about 0.2 occurrences217–213 Mya — about 0.2 occurrences213–209 Mya — about 0.2 occurrences209–205 Mya — about 0.3 occurrences205–202 Mya — about 0.9 occurrences202–198 Mya — about 2 occurrences198–194 Mya — about 0.6 occurrences194–191 Mya — about 0.2 occurrences251.902 Mya199.5 Mya301 Mya191 Mya

49 occurrences of Miocidaris on record, most of them in the Early Triassic. 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

49 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

12 formations

Virgin — 37.05°N, 113.68°WVirgin — 37.11°N, 113.25°WVirgin — 37.04°N, 113.28°WVirgin — 37.02°N, 113.65°WMoenkopi — 37.05°N, 113.75°WMoenkopi — 37.17°N, 113.29°WMoenkopi — 36.00°N, 114.00°WQingyan — 26.33°N, 106.68°EThaynes — 40.77°N, 111.83°WThaynes — 40.00°N, 111.00°WThaynes — 44.68°N, 112.79°WThaynes — 43.40°N, 111.44°WLiard — 56.16°N, 122.55°WLiard — 56.10°N, 122.87°WTrochitenkalk — 51.63°N, 9.03°ETrochitenkalk — 50.75°N, 8.50°EAkasaka Limestone — 36.39°N, 136.58°EWerfen — 46.38°N, 11.85°EPelsonian-Lower Illyrian — 48.47°N, 20.52°EBaldonnel — 56.05°N, 123.01°WWetterstein — 48.47°N, 20.53°ESaltrio — 45.88°N, 8.92°E

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The named rock units Miocidaris has been recovered from, largest first. Drawn where the rock is now, not where it formed. 12 occurrences have no formation on record, which is common for older literature.

Miocidaris and its relatives

Early Triassic

Where Miocidaris and its relatives were recorded in the Early Triassic.

Found in the same rock

463 taxa

The Paleobiology Database records 44 sites for Miocidaris, 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

17 references

Each of the 49 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. 5 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 Miocidaris

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

No 3D scan of Miocidaris 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.

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 itMiocidaridae through timeFormations of the Early TriassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Döderlein 1887