Calodiscidae

Calodiscus Howell, 1935, a relative of Calodiscidae — not Calodiscidae itself

Not Calodiscidae. This is Calodiscus Howell, 1935, a relative — both are Calodiscidae.

Courtessole (Abbé), Robert · CC BY 4.0 · via GBIF. 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
EodiscinaPBDB
Diet
detritivorePBDB, for Agnostida
Life habit
epifaunalPBDB, for Agnostida
Motility
slow-movingPBDB, for Agnostida

Time the record covers

At least 19 million years on record.

The record covers at least 516 Mya to 497 Mya. No occurrence read is dated outside 521 Mya to 486.85 Mya.

Cambrian — about 65 of 65 occurrencesCambrianOrdovician — about 0 of 65 occurrences522–520 Mya — about 1 occurrence520–519 Mya — about 3 occurrences519–518 Mya — about 3 occurrences518–517 Mya — about 3 occurrences517–516 Mya — about 4 occurrences516–515 Mya — about 8 occurrences515–513 Mya — about 8 occurrences513–512 Mya — about 8 occurrences512–511 Mya — about 6 occurrences511–510 Mya — about 6 occurrences510–509 Mya — about 3 occurrences509–507 Mya — about 2 occurrences507–506 Mya — about 2 occurrences506–505 Mya — about 0.9 occurrences505–504 Mya — about 0.6 occurrences504–503 Mya — about 0.2 occurrences503–502 Mya — about 0.2 occurrences502–500 Mya — about 0.2 occurrences500–499 Mya — about 0.2 occurrences499–498 Mya — about 0.2 occurrences498–497 Mya — about 0.3 occurrences497–496 Mya — about 0.3 occurrences496–494 Mya — about 0.3 occurrences494–493 Mya — about 0.3 occurrences493–492 Mya — about 0.3 occurrences492–491 Mya — about 0.3 occurrences491–490 Mya — about 0.3 occurrences490–489 Mya — about 0.3 occurrences489–487 Mya — about 0.3 occurrences487–486 Mya — about 0.1 occurrences516 Mya497 Mya521.7 Mya486.2 Mya

65 occurrences of Calodiscidae on record, most of them in the Cambrian. 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

65 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

33 formations

Bastion — 74.10°N, 23.00°WBastion — 72.85°N, 25.03°WForteau — 49.60°N, 57.83°WForteau — 51.02°N, 56.81°WForteau — 51.47°N, 56.84°WForteau — 50.73°N, 56.12°WForteau — 49.89°N, 56.27°WForteau — 50.98°N, 56.32°WStissing — 42.41°N, 73.53°WStissing — 43.17°N, 73.32°WHotang — 28.73°N, 118.62°ESofiekammen — 76.90°N, 15.98°EPerekhod — 61.08°N, 126.59°EGislov — 55.49°N, 14.32°EGislov — 55.72°N, 13.27°EShuijingtuo — 30.77°N, 111.32°EShuijingtuo — 30.47°N, 111.17°EShackleton — 82.20°S, 160.28°ELower Comley — 52.56°N, 2.76°WNiutitang — 27.07°N, 107.50°EWangjiadian — 33.13°N, 111.47°EShuangyingshan — 41.49°N, 96.72°EKuonamka — 66.50°N, 116.00°EZwetau — 51.17°N, 15.00°EWeymouth — 41.95°N, 71.28°WUsa — 56.00°N, 88.00°EBerikul — 56.00°N, 88.00°EBrowns Pond — 42.22°N, 73.73°WAkdurug — 51.72°N, 92.20°EJiumenchong — 28.17°N, 109.17°EErkeket — 71.48°N, 124.55°EShabakty — 43.60°N, 69.45°EWuxingzhen — 47.72°N, 128.90°E

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The named rock units Calodiscidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 9 further formations hold fewer occurrences each and are not listed. 3 occurrences have no formation on record, which is common for older literature.

Calodiscidae and its relatives

Cambrian

Where Calodiscidae and its relatives were recorded in the Cambrian.

Found in the same rock

295 taxa

The Paleobiology Database records 49 sites for Calodiscidae, 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

36 references

Each of the 65 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. 24 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 Calodiscus Howell, 1935

Source
GBIF
Credit
Courtessole (Abbé), Robert
Licence
CC BY 4.0
Commercial use
the licence allows it

No 3D scan of Calodiscidae was found in Sketchfab.

Smithsonian Open Access and MorphoSource were 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 itEodiscina through timeFormations of the CambrianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Kobayashi 1943