Brissus

Brissus is a genus of sea urchins belonging to the family Brissidae.

Brissus

Uncredited · 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
BrissidaePBDB
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 48.07 Mya to 11.7 ka.

Eocene — about 1 of 28 occurrencesEoceneOligocene — about 4 of 28 occurrencesOligoceneMiocene — about 14 of 28 occurrencesMiocenePliocene — about 6 of 28 occurrencesPleistocene — about 3 of 28 occurrences49–47 Mya — about 0.1 occurrences47–46 Mya — about 0.2 occurrences46–44 Mya — about 0.2 occurrences44–42 Mya — about 0.2 occurrences42–41 Mya — about 0.2 occurrences41–39 Mya — about 0.2 occurrences39–38 Mya — about 0.1 occurrences34–33 Mya — about 0.4 occurrences33–31 Mya — about 0.5 occurrences31–29 Mya — about 0.5 occurrences29–28 Mya — about 0.5 occurrences28–26 Mya — about 0.7 occurrences26–25 Mya — about 0.8 occurrences25–23 Mya — about 0.8 occurrences23–21 Mya — about 0.7 occurrences21–20 Mya — about 0.7 occurrences20–18 Mya — about 0.7 occurrences18–16 Mya — about 0.7 occurrences16–15 Mya — about 1 occurrence15–13 Mya — about 3 occurrences13–11 Mya — about 2 occurrences11–9.8 Mya — about 0.4 occurrences9.8–8.2 Mya — about 0.4 occurrences8.2–6.5 Mya — about 2 occurrences6.5–4.9 Mya — about 3 occurrences4.9–3.3 Mya — about 3 occurrences3.3–1.6 Mya — about 3 occurrences1.6–0 Mya — about 2 occurrences37.71 Mya2.58 Mya49 Mya0 Mya

28 occurrences of Brissus on record, most of them in the Miocene. 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

28 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

16 formations

Ndalithoni Limestone — 17.23°S, 178.95°EVaqueros — 33.98°N, 120.09°WSuwannee Limestone — 29.33°N, 83.14°WAnahuac — 29.28°N, 95.73°WMilburn Limestone — 46.07°S, 170.00°EGlenforslan — 34.29°S, 139.63°EBridgeboro Limestone — 31.40°N, 83.98°WWaccamaw — 32.98°N, 79.89°WGabir — 25.25°N, 34.80°EShagra — 25.25°N, 34.80°EMannum Limestone — 34.90°S, 139.30°EMorgan Limestone — 37.75°S, 146.98°EUpper Coralline Limestone — 35.93°N, 14.33°ERyukyu — 22.98°N, 120.45°EPeliliu Limestone — 6.90°N, 134.13°ESeroe Domi — 12.15°N, 68.99°W

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The named rock units Brissus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 10 occurrences have no formation on record, which is common for older literature.

Brissus and its relatives

Miocene

Where Brissus and its relatives were recorded in the Miocene.

Found in the same rock

316 taxa

The Paleobiology Database records 23 sites for Brissus, 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

19 references

Each of the 28 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. 7 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 Brissus

Credit
nobody named on the record
Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record

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 itBrissidae through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Gray 1825