Echinoida

Echinoida is an order of sea urchins in the class Echinoidea. They are distinguished from other sea urchins by simultaneously possessing both an un-sculpted test and a feeding lantern with large plates fused across the top of each pyramid.

Echinoida

Marco Busdraghi · CC BY 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
EchinoideaPBDB
Diet
grazerPBDB
Life habit
low-level epifaunalPBDB
Motility
slow-movingPBDB
Vision
limitedPBDB, for Echinoidea
Environment
marinePBDB, for Echinodermata

Time the record covers

At least 306 million years on record.

The record covers at least 307 Mya to 11.7 ka. No occurrence read is dated outside 313.8 Mya to 0 Mya.

Carboniferous — about 2 of 48 occurrencesPermian — about 1 of 48 occurrencesPermianEarly Triassic — about 0 of 48 occurrencesMiddle Triassic — about 1 of 48 occurrencesLate Triassic — about 1 of 48 occurrencesLate TriassicEarly Jurassic — about 2 of 48 occurrencesEarly JurassicMiddle Jurassic — about 6 of 48 occurrencesLate Jurassic — about 4 of 48 occurrencesEarly Cretaceous — about 4 of 48 occurrencesEarly CretaceousLate Cretaceous — about 14 of 48 occurrencesLate CretaceousPaleocene — about 6 of 48 occurrencesEocene — about 0 of 48 occurrencesOligocene — about 1 of 48 occurrencesMiocene — about 4 of 48 occurrencesPliocene — about 0 of 48 occurrencesPleistocene — about 1 of 48 occurrences320–309 Mya — about 0.6 occurrences309–299 Mya — about 1 occurrence299–288 Mya — about 0.4 occurrences288–277 Mya — about 0.4 occurrences277–267 Mya — about 0.1 occurrences256–245 Mya — about 0.3 occurrences245–235 Mya — about 0.7 occurrences235–224 Mya — about 0.1 occurrences224–213 Mya — about 0.5 occurrences213–203 Mya — about 0.4 occurrences203–192 Mya — about 0.1 occurrences192–181 Mya — about 2 occurrences171–160 Mya — about 6 occurrences160–149 Mya — about 2 occurrences149–139 Mya — about 2 occurrences139–128 Mya — about 2 occurrences128–117 Mya — about 0.9 occurrences117–107 Mya — about 0.7 occurrences107–96 Mya — about 0.4 occurrences96–85 Mya — about 1 occurrence85–75 Mya — about 0.5 occurrences75–64 Mya — about 15 occurrences64–53 Mya — about 3 occurrences32–21 Mya — about 0.9 occurrences21–11 Mya — about 0.4 occurrences11–0 Mya — about 6 occurrences307 Mya11.7 ka320 Mya0 Mya

48 occurrences of Echinoida on record, most of them in the Late Cretaceous. 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

48 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

18 formations

Jagüel — 38.13°S, 68.41°WRoca — 37.56°S, 69.85°WRoca — 37.54°S, 69.87°WChari — 23.50°N, 70.50°ELefipán — 42.67°S, 69.98°WLefipán — 42.69°S, 69.84°WSpence Harbour Conglomerate — 60.67°S, 45.17°WSan Lorenzo — 37.12°N, 122.02°WLower Cornbrush — 53.50°N, 0.33°WUpper Cornbrush — 53.50°N, 0.33°WFlechado — 36.41°N, 105.57°WSpatsizi — 57.50°N, 128.90°WPanther Seep — 32.92°N, 106.66°WApátvarasd Limestone — 46.19°N, 18.45°ERiva di Solto Shale — 45.93°N, 9.57°ELatemar Limestone — 46.43°N, 11.85°EAbenaki — 43.69°N, 60.83°WSt Mary's — 37.66°N, 76.75°WRiachuelo — 10.63°S, 37.03°WDepósitos Litorales — 28.43°S, 71.18°W

Loading coastlines…

The named rock units Echinoida has been recovered from, largest first. Drawn where the rock is now, not where it formed. 12 occurrences have no formation on record, which is common for older literature.

Echinoida and its relatives

Late Cretaceous

Where Echinoida and its relatives were recorded in the Late Cretaceous.

Found in the same rock

556 taxa

The Paleobiology Database records 35 sites for Echinoida, 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

25 references

Each of the 48 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. 13 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 content1

Picture of Echinoida

Credit
Marco Busdraghi
Licence
CC BY 3.0
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 itEchinoidea through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Troschel 1872