Rhabdocidaris horrida

Rhabdocidaris horrida

via iDigBio · CC BY · via iDigBio. 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
RhabdocidarisPBDB
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 most 6.1 million years on record.

Every occurrence read is dated to somewhere between 174.7 Mya and 168.6 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Early Jurassic — about 0 of 3 occurrencesMiddle Jurassic — about 3 of 3 occurrencesMiddle Jurassic175–174 Mya — about 0.1 occurrences174–174 Mya — about 0.1 occurrences174–174 Mya — about 0.1 occurrences174–174 Mya — about 0.1 occurrences174–174 Mya — about 0.1 occurrences174–173 Mya — about 0.1 occurrences173–173 Mya — about 0.1 occurrences173–173 Mya — about 0.1 occurrences173–173 Mya — about 0.1 occurrences173–172 Mya — about 0.1 occurrences172–172 Mya — about 0.1 occurrences172–172 Mya — about 0.1 occurrences172–172 Mya — about 0.1 occurrences172–171 Mya — about 0.1 occurrences171–171 Mya — about 0.1 occurrences171–171 Mya — about 0.1 occurrences171–171 Mya — about 0.2 occurrences171–170 Mya — about 0.2 occurrences170–170 Mya — about 0.2 occurrences170–170 Mya — about 0.2 occurrences170–170 Mya — about 0.2 occurrences170–170 Mya — about 0.2 occurrences170–169 Mya — about 0.2 occurrences169–169 Mya — about 0.2 occurrences169–169 Mya — about 0.2 occurrences169–169 Mya — about 0.2 occurrences175.2 Mya168.1 Mya

3 occurrences of Rhabdocidaris horrida 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

3 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

2 formations

Scarborough — 54.26°N, 0.38°WBirdlip Limestone — 51.85°N, 2.10°W

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The named rock units Rhabdocidaris horrida has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Rhabdocidaris horrida and its relatives

Middle Jurassic

Where Rhabdocidaris horrida and its relatives were recorded in the Middle Jurassic.

Found in the same rock

5 taxa

The Paleobiology Database records 3 sites for Rhabdocidaris horrida, and this reads all of them. The number is how many of those sites it was catalogued from too.

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

1 reference

Each of the 3 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 doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content1

Picture of Rhabdocidaris horrida

Source
iDigBio
Credit
via iDigBio
Licence
CC BY
Commercial use
the licence allows it

No 3D scan of Rhabdocidaris horrida 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 itRhabdocidaris through timeFormations of the Middle JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Agassiz 1840)