Discoides

Discoides

via iDigBio · CC BY · via iDigBio. 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
DiscoididaePBDB
Diet
detritivorePBDB, for Holectypoida
Life habit
semi-infaunalPBDB, for Holectypoida
Motility
actively mobilePBDB, for Holectypoida
Vision
limitedPBDB, for Echinoidea
Environment
marinePBDB, for Echinodermata

Time the record covers

At least 422 million years on record.

The record covers at least 516 Mya to 93.9 Mya. No occurrence read is dated outside 521 Mya to 66 Mya.

Cambrian — about 3 of 90 occurrencesCambrianOrdovician — about 0 of 90 occurrencesSilurian — about 0 of 90 occurrencesDevonian — about 0 of 90 occurrencesCarboniferous — about 0 of 90 occurrencesPermian — about 0 of 90 occurrencesEarly Triassic — about 0 of 90 occurrencesMiddle Triassic — about 0 of 90 occurrencesLate Triassic — about 0 of 90 occurrencesEarly Jurassic — about 0 of 90 occurrencesMiddle Jurassic — about 1 of 90 occurrencesLate Jurassic — about 0 of 90 occurrencesEarly Cretaceous — about 45 of 90 occurrencesEarly CretaceousLate Cretaceous — about 41 of 90 occurrencesPaleocene — about 0 of 90 occurrences530–514 Mya — about 3 occurrences183–167 Mya — about 1 occurrence152–136 Mya — about 0.1 occurrences136–120 Mya — about 4 occurrences120–104 Mya — about 25 occurrences104–88 Mya — about 56 occurrences88–73 Mya — about 0.7 occurrences73–57 Mya — about 0.3 occurrences516 Mya93.9 Mya530 Mya57 Mya

90 occurrences of Discoides on record, most of them in the Early Cretaceous. 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

90 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

23 formations

Grès verts helvétiques — 46.13°N, 6.77°EGrès verts helvétiques — 45.99°N, 6.71°EGrès verts helvétiques — 45.89°N, 6.48°EGrès verts helvétiques — 45.90°N, 6.34°EGrès verts helvétiques — 46.04°N, 6.62°EGrès verts helvétiques — 46.01°N, 6.35°EGrès verts helvétiques — 45.98°N, 6.78°EGrès verts helvétiques — 45.86°N, 6.45°EGrès verts helvétiques — 46.87°N, 6.31°EGrizzle — 50.80°N, 0.18°EUpper Greensand — 50.80°N, 0.18°EUpper Greensand — 51.28°N, 0.37°WUpper Greensand — 50.75°N, 2.33°WWilmington Sands — 50.80°N, 0.18°EYuanshan — 24.81°N, 102.58°EWest Melbury Marly Chalk — 51.08°N, 1.18°EWest Melbury Marly Chalk — 50.59°N, 1.24°WPerte-du-Rhone — 45.15°N, 5.48°EHythe — 51.08°N, 1.18°ETadhart — 31.21°N, 7.88°WPerte du Rhône — 46.83°N, 6.52°EHolywell Nodular Chalk — 51.25°N, 0.15°WCouches du Freu — 46.01°N, 6.35°EBargy Conglomerate — 46.00°N, 6.10°EGrès verts helvétiques — 46.28°N, 7.20°ECalcaires de Fiz — 46.10°N, 6.78°EMiddle Chalk — 50.80°N, 0.18°ESecond niveau de Calcaires à Rudistes — 45.95°N, 1.08°WBeer Head Limestone — 51.08°N, 1.18°EGlauconitic Marl — 52.33°N, 2.28°WLower Chalk — 50.83°N, 2.60°WEggardon Grit — 50.77°N, 2.57°WCraie glauconieuse — 48.84°N, 0.13°ESalperton Limestone — 51.86°N, 2.10°W

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The named rock units Discoides has been recovered from, largest first. Drawn where the rock is now, not where it formed. 30 occurrences have no formation on record, which is common for older literature.

Discoides and its relatives

Early Cretaceous

Where Discoides and its relatives were recorded in the Early Cretaceous.

Found in the same rock

741 taxa

The Paleobiology Database records 82 sites for Discoides, 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

24 references

Each of the 90 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. 12 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 Discoides

Source
iDigBio
Credit
via iDigBio
Licence
CC BY
Commercial use
the licence allows it

No 3D scan of Discoides was found in MorphoSource and Sketchfab.

Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itDiscoididae through timeFormations of the Early CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Parkinson 1811