Asterocidaris

Asterocidaris

Uncredited · 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
HemicidaridaePBDB
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 2.9 million years on record.

The record covers at least 168.2 Mya to 165.3 Mya. No occurrence read is dated outside 168.6 Mya to 161.5 Mya.

Middle Jurassic — about 2 of 2 occurrencesMiddle JurassicLate Jurassic — about 0 of 2 occurrences169–169 Mya — about 0.1 occurrences169–168 Mya — about 0.7 occurrences168–168 Mya — about 0.2 occurrences165–165 Mya — about 0.1 occurrences165–165 Mya — about 0.1 occurrences165–165 Mya — about 0.1 occurrences165–164 Mya — about 0.1 occurrences164–164 Mya — about 0.1 occurrences164–164 Mya — about 0.1 occurrences164–163 Mya — about 0.1 occurrences163–163 Mya — about 0.1 occurrences163–163 Mya — about 0.1 occurrences163–163 Mya — about 0.1 occurrences163–162 Mya — about 0.1 occurrences162–162 Mya — about 0.1 occurrences162–162 Mya — about 0.1 occurrences162–162 Mya — about 0.1 occurrences162–161 Mya — about 0.0 occurrences168.2 Mya165.3 Mya169.1 Mya161 Mya

2 occurrences of Asterocidaris on record, most of them in the Middle Jurassic. 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

2 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.

Asterocidaris and its relatives

Middle Jurassic

Where Asterocidaris and its relatives were recorded in the Middle Jurassic.

Found in the same rock

84 taxa

The Paleobiology Database records 2 sites for Asterocidaris, 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

2 references

Each of the 2 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. Each entry links to the Paleobiology Database's own record for the work.

Media and terms

Media content1

Picture of Asterocidaris

Credit
nobody named on the record
Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record

No 3D scan of Asterocidaris was found in MorphoSource and Sketchfab.

Smithsonian Open Access was 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 itHemicidaridae through timeFormations of the Middle JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0.