Balanocidaris

Balanocidaris

Vassil · Public Domain · 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
StylocidarinaePBDB
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 150 million years on record.

The record covers at least 233.6 Mya to 83.6 Mya. No occurrence read is dated outside 237 Mya to 72.2 Mya.

Middle Triassic — about 0 of 32 occurrencesLate Triassic — about 13 of 32 occurrencesLate TriassicEarly Jurassic — about 0 of 32 occurrencesMiddle Jurassic — about 4 of 32 occurrencesLate Jurassic — about 6 of 32 occurrencesLate JurassicEarly Cretaceous — about 6 of 32 occurrencesEarly CretaceousLate Cretaceous — about 3 of 32 occurrencesLate Cretaceous240–235 Mya — about 9 occurrences235–229 Mya — about 4 occurrences229–223 Mya — about 0.2 occurrences172–166 Mya — about 2 occurrences166–160 Mya — about 2 occurrences160–155 Mya — about 0.9 occurrences155–149 Mya — about 4 occurrences149–143 Mya — about 0.6 occurrences143–137 Mya — about 0.0 occurrences137–132 Mya — about 0.4 occurrences132–126 Mya — about 3 occurrences126–120 Mya — about 1.0 occurrences120–115 Mya — about 0.9 occurrences115–109 Mya — about 1 occurrence103–97 Mya — about 0.5 occurrences97–92 Mya — about 0.5 occurrences92–86 Mya — about 0.6 occurrences86–80 Mya — about 0.7 occurrences80–75 Mya — about 0.5 occurrences75–69 Mya — about 0.2 occurrences233.6 Mya83.6 Mya240 Mya69 Mya

32 occurrences of Balanocidaris on record, most of them in the Late 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

32 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

7 formations

Cassian — 46.68°N, 12.15°ECassian — 46.52°N, 11.96°ECassian — 46.47°N, 12.07°ECassian — 46.64°N, 12.20°ECassian — 46.53°N, 11.92°EAbadia — 38.93°N, 9.00°WSant Corneli — 42.17°N, 0.90°EVallcarga — 42.25°N, 0.97°ETorinosu — 33.97°N, 135.12°ETorinosu Limestone — 36.37°N, 133.24°ERisan Aneiza — 30.79°N, 33.48°E

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The named rock units Balanocidaris has been recovered from, largest first. Drawn where the rock is now, not where it formed. 15 occurrences have no formation on record, which is common for older literature.

Balanocidaris and its relatives

Late Triassic

Where Balanocidaris and its relatives were recorded in the Late Triassic.

Found in the same rock

490 taxa

The Paleobiology Database records 28 sites for Balanocidaris, 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

16 references

Each of the 32 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. 4 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 Balanocidaris

Credit
Vassil
Licence
Public Domain
Commercial use
the licence allows it

3D model

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

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itStylocidarinae through timeFormations of the Late TriassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0.