Cassidulus

Cassidulus is a genus of echinoderms belonging to the family Cassidulidae.

Cassidulus

Dornicke · CC BY-SA 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
CassidulidaePBDB
Diet
detritivorePBDB, for Cassiduloida
Life habit
semi-infaunalPBDB, for Cassiduloida
Motility
slow-movingPBDB, for Cassiduloida
Vision
limitedPBDB, for Echinoidea
Environment
marinePBDB, for Echinodermata

Time the record covers

At least 69 million years on record.

The record covers at least 72.2 Mya to 2.58 Mya. No occurrence read is dated outside 83.6 Mya to 774 ka.

Late Cretaceous — about 13 of 49 occurrencesLate CretaceousPaleocene — about 2 of 49 occurrencesPaleoceneEocene — about 19 of 49 occurrencesEoceneOligocene — about 8 of 49 occurrencesOligoceneMiocene — about 5 of 49 occurrencesMiocenePliocene — about 0 of 49 occurrencesPleistocene — about 2 of 49 occurrences85–82 Mya — about 0.1 occurrences82–80 Mya — about 0.2 occurrences80–77 Mya — about 0.2 occurrences77–74 Mya — about 0.2 occurrences74–71 Mya — about 2 occurrences71–68 Mya — about 5 occurrences68–65 Mya — about 4 occurrences65–63 Mya — about 0.9 occurrences63–60 Mya — about 1 occurrence60–57 Mya — about 0.2 occurrences57–54 Mya — about 0.2 occurrences54–51 Mya — about 0.3 occurrences51–48 Mya — about 0.3 occurrences48–45 Mya — about 1 occurrence45–43 Mya — about 1 occurrence43–40 Mya — about 2 occurrences40–37 Mya — about 4 occurrences37–34 Mya — about 9 occurrences34–31 Mya — about 3 occurrences31–28 Mya — about 3 occurrences28–26 Mya — about 2 occurrences26–23 Mya — about 0.7 occurrences23–20 Mya — about 1.0 occurrences20–17 Mya — about 1.0 occurrences17–14 Mya — about 0.9 occurrences14–11 Mya — about 0.8 occurrences11–8.5 Mya — about 0.3 occurrences8.5–5.7 Mya — about 0.8 occurrences5.7–2.8 Mya — about 0.2 occurrences2.8–0 Mya — about 2 occurrences72.2 Mya2.58 Mya85 Mya0 Mya

49 occurrences of Cassidulus on record, most of them in the Eocene. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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

49 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

22 formations

Moreno — 37.25°N, 121.16°WMoreno — 37.24°N, 121.14°WInglis Limestone — 29.02°N, 82.62°WInglis Limestone — 29.03°N, 82.67°WOcala — 30.99°N, 84.55°WOcala — 30.11°N, 83.22°WOcala — 31.17°N, 84.82°WOcala — 31.17°N, 84.74°WMaastricht — 50.85°N, 5.70°EMaastricht — 50.86°N, 5.79°EFlint River — 31.77°N, 84.79°WFlint River — 31.88°N, 84.58°WFlint River — 31.73°N, 84.17°WCaloosahatchee — 25.91°N, 81.36°WCaloosahatchee — 25.75°N, 81.94°WCastle Hayne — 34.44°N, 77.89°WCastle Hayne — 34.23°N, 77.94°WSuwannee Limestone — 28.90°N, 82.59°WPirabas — 1.18°S, 47.22°WPirabas — 0.60°S, 47.31°WEwekoro — 6.92°N, 3.19°EMaastricht — 50.80°N, 5.67°ESamalut — 28.10°N, 30.83°ETrent — 34.75°N, 77.43°WArén — 42.17°N, 0.90°ECitronelle — 31.57°N, 88.04°WMacarao — 11.85°N, 71.33°WCabo de Lata — 43.49°N, 3.80°WAruma — 24.40°N, 47.76°EAtascadero — 4.37°S, 80.97°WSt. Stephens — 34.09°N, 87.60°WDomengine — 35.41°N, 119.87°WMabury — 35.46°N, 119.93°W

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The named rock units Cassidulus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 8 occurrences have no formation on record, which is common for older literature.

Cassidulus and its relatives

Eocene

Where Cassidulus and its relatives were recorded in the Eocene.

Found in the same rock

830 taxa

The Paleobiology Database records 46 sites for Cassidulus, 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 49 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 Cassidulus

Credit
Dornicke
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

No 3D scan of Cassidulus 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.

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 itCassidulidae through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Lamarck 1801)