Strongylocentrotus

Strongylocentrotus is a genus of sea urchins in the family Strongylocentrotidae containing several species.

Strongylocentrotus

David Monniaux · CC BY-SA 3.0 · 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
StrongylocentrotidaePBDB
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 23 million years on record.

The record covers at least 23.04 Mya to 11.7 ka. No occurrence read is dated outside 27.3 Mya to 0 Mya.

Oligocene — about 1 of 79 occurrencesOligoceneMiocene — about 6 of 79 occurrencesMiocenePliocene — about 13 of 79 occurrencesPliocenePleistocene — about 55 of 79 occurrencesPleistocene28–27 Mya — about 0.1 occurrences27–26 Mya — about 0.2 occurrences26–25 Mya — about 0.2 occurrences25–24 Mya — about 0.2 occurrences24–23 Mya — about 0.2 occurrences23–22 Mya — about 0.1 occurrences22–21 Mya — about 0.1 occurrences21–20 Mya — about 0.1 occurrences20–19 Mya — about 0.3 occurrences19–19 Mya — about 0.3 occurrences19–18 Mya — about 0.3 occurrences18–17 Mya — about 0.3 occurrences17–16 Mya — about 0.2 occurrences16–15 Mya — about 0.1 occurrences15–14 Mya — about 0.1 occurrences14–13 Mya — about 0.1 occurrences13–12 Mya — about 0.1 occurrences12–11 Mya — about 0.3 occurrences11–10 Mya — about 0.6 occurrences10–9.3 Mya — about 0.6 occurrences9.3–8.4 Mya — about 0.6 occurrences8.4–7.4 Mya — about 0.6 occurrences7.4–6.5 Mya — about 0.6 occurrences6.5–5.6 Mya — about 0.6 occurrences5.6–4.6 Mya — about 2 occurrences4.6–3.7 Mya — about 2 occurrences3.7–2.8 Mya — about 7 occurrences2.8–1.9 Mya — about 6 occurrences1.9–928 ka Mya — about 5 occurrences928 ka–0 Mya — about 49 occurrences23.04 Mya11.7 ka27.8 Mya0 Mya

79 occurrences of Strongylocentrotus on record, most of them in the Pleistocene. The Paleobiology Database records this as a living group. 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

79 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

Unnamed — 33.24°N, 119.51°WUnnamed — 33.24°N, 119.55°WSan Pedro Sand — 33.74°N, 118.28°WPalos Verdes Sand — 33.99°N, 118.45°WPalos Verdes Sand — 33.60°N, 117.88°WFernando — 34.05°N, 118.25°WSetana — 41.18°N, 141.27°ESetana — 42.60°N, 140.45°ETimms Point Silt — 33.73°N, 118.28°WKattendijk, Lillo — 51.25°N, 4.28°EBay Point — 32.78°N, 117.24°WHimi — 36.83°N, 136.97°EFukaura — 40.62°N, 139.93°ESanta Barbara — 34.40°N, 119.69°WSan Diego — 32.54°N, 117.11°W

Loading coastlines…

The named rock units Strongylocentrotus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 47 occurrences have no formation on record, which is common for older literature.

Strongylocentrotus and its relatives

Pleistocene

Where Strongylocentrotus and its relatives were recorded in the Pleistocene.

Found in the same rock

1,224 taxa

The Paleobiology Database records 50 sites for Strongylocentrotus, 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

29 references

Each of the 79 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. 17 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 Strongylocentrotus

Credit
David Monniaux
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

3D model

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

Smithsonian Open Access was 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 itStrongylocentrotidae through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Brandt 1835