Histocidaris

Histocidaris is a genus of sea urchins in the family Histocidaridae. Some species are known from the fossil record.

Histocidaris

NOAA Okeanos Explorer · Public Domain · 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
HistocidaridaePBDB
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 30 million years on record.

The record covers at least 37.71 Mya to 7.246 Mya. No occurrence read is dated outside 48.07 Mya to 5.333 Mya.

Eocene — about 2 of 9 occurrencesEoceneOligocene — about 0 of 9 occurrencesMiocene — about 7 of 9 occurrencesMiocenePliocene — about 0 of 9 occurrences49–47 Mya — about 0.1 occurrences47–46 Mya — about 0.1 occurrences46–44 Mya — about 0.1 occurrences44–43 Mya — about 0.1 occurrences43–42 Mya — about 0.1 occurrences42–40 Mya — about 0.1 occurrences40–39 Mya — about 0.1 occurrences39–37 Mya — about 0.2 occurrences37–36 Mya — about 0.4 occurrences36–34 Mya — about 0.4 occurrences34–33 Mya — about 0.1 occurrences24–22 Mya — about 0.2 occurrences22–21 Mya — about 0.4 occurrences21–19 Mya — about 1 occurrence19–18 Mya — about 1 occurrence18–16 Mya — about 1 occurrence16–15 Mya — about 1.0 occurrences15–13 Mya — about 0.6 occurrences7.4–6.0 Mya — about 0.7 occurrences6.0–4.5 Mya — about 0.3 occurrences37.71 Mya7.246 Mya48.9 Mya4.5 Mya

9 occurrences of Histocidaris on record, most of them in the Miocene. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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

9 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

6 formations

Pantano — 44.24°N, 10.95°EPantano — 44.27°N, 10.95°EPantano — 44.64°N, 10.30°EPantano — 44.30°N, 11.34°EConsuelo — 21.36°N, 78.34°WLoma Candela — 22.12°N, 80.45°WBrèches rouges de Carboneras — 37.60°N, 1.32°WSign — 18.48°N, 77.58°WPirabas — 0.48°S, 48.17°W

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

Histocidaris and its relatives

Miocene

Where Histocidaris and its relatives were recorded in the Miocene.

Found in the same rock

368 taxa

The Paleobiology Database records 9 sites for Histocidaris, 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

5 references

Each of the 9 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 Histocidaris

Credit
NOAA Okeanos Explorer
Licence
Public Domain
Commercial use
the licence allows it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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 itHistocidaridae through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Mortensen 1903