Brisaster

Brisaster is a genus of echinoderms belonging to the family Schizasteridae.

Brisaster

Natural History Museum of Denmark · CC BY 4.0 · 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
SchizasteridaePBDB
Diet
deposit feeder, detritivorePBDB, for Spatangoida
Life habit
shallow infaunalPBDB, for Spatangoida
Motility
slow-movingPBDB, for Spatangoida
Vision
limitedPBDB, for Echinoidea
Environment
marinePBDB, for Spatangoida

Time the record covers

At least 35 million years on record.

The record covers at least 37.71 Mya to 2.58 Mya. No occurrence read is dated outside 41.03 Mya to 11.7 ka.

Eocene — about 1 of 11 occurrencesEoceneOligocene — about 4 of 11 occurrencesOligoceneMiocene — about 3 of 11 occurrencesMiocenePliocene — about 2 of 11 occurrencesPleistocene — about 1 of 11 occurrences42–40 Mya — about 0.2 occurrences40–39 Mya — about 0.4 occurrences39–38 Mya — about 0.4 occurrences35–33 Mya — about 0.2 occurrences33–32 Mya — about 0.6 occurrences32–31 Mya — about 0.6 occurrences31–29 Mya — about 0.6 occurrences29–28 Mya — about 0.6 occurrences28–27 Mya — about 0.6 occurrences27–25 Mya — about 0.6 occurrences25–24 Mya — about 0.6 occurrences24–22 Mya — about 0.4 occurrences22–21 Mya — about 0.3 occurrences21–20 Mya — about 0.5 occurrences20–18 Mya — about 0.6 occurrences18–17 Mya — about 0.6 occurrences17–15 Mya — about 0.3 occurrences5.6–4.2 Mya — about 1 occurrence4.2–2.8 Mya — about 0.8 occurrences2.8–1.4 Mya — about 0.5 occurrences1.4–0 Mya — about 0.5 occurrences37.71 Mya2.58 Mya41.9 Mya0 Mya

11 occurrences of Brisaster on record, most of them in the Oligocene. 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

11 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

8 formations

El Chacay — 48.83°S, 70.83°WRio Foyel — 41.73°S, 71.42°WKeasey — 45.98°N, 123.28°WTukwila — 47.48°N, 122.25°WSanuki — 35.26°N, 139.73°EPadowa Beds — 10.43°S, 150.27°EKairuku — 8.82°S, 146.53°EGaiman — 43.36°S, 65.45°W

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The named rock units Brisaster has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.

Brisaster and its relatives

Oligocene

Where Brisaster and its relatives were recorded in the Oligocene.

Found in the same rock

146 taxa

The Paleobiology Database records 8 sites for Brisaster, 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

9 references

Each of the 11 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. 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 Brisaster

Credit
Natural History Museum of Denmark
Licence
CC BY 4.0
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 itSchizasteridae through timeFormations of the OligoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Gray 1855