Ciurcalimulus discobolus

No picture of Ciurcalimulus discobolus was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Ciurcalimulus discobolus, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
CiurcalimulusPBDB
Diet
carnivorePBDB, for Xiphosura
Life habit
nektobenthicPBDB, for Xiphosura
Motility
actively mobilePBDB, for Xiphosura

Time the record covers

At most 2.3 million years on record.

The one occurrence read is dated to somewhere between 425 Mya and 422.7 Mya, which is a dating window rather than a span.

Silurian — about 1 of 1 occurrenceSilurian425–425 Mya — about 0.0 occurrences425–425 Mya — about 0.0 occurrences425–425 Mya — about 0.0 occurrences425–425 Mya — about 0.0 occurrences425–425 Mya — about 0.0 occurrences425–424 Mya — about 0.0 occurrences424–424 Mya — about 0.0 occurrences424–424 Mya — about 0.0 occurrences424–424 Mya — about 0.0 occurrences424–424 Mya — about 0.0 occurrences424–424 Mya — about 0.0 occurrences424–424 Mya — about 0.0 occurrences424–424 Mya — about 0.0 occurrences424–424 Mya — about 0.0 occurrences424–423 Mya — about 0.0 occurrences423–423 Mya — about 0.0 occurrences423–423 Mya — about 0.0 occurrences423–423 Mya — about 0.0 occurrences423–423 Mya — about 0.0 occurrences423–423 Mya — about 0.0 occurrences423–423 Mya — about 0.0 occurrences423–423 Mya — about 0.0 occurrences425.5 Mya422.2 Mya

1 occurrence of Ciurcalimulus discobolus on record, most of them in the Silurian. 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

1 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

1 formation

Wabash — 40.48°N, 86.18°W

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The named rock units Ciurcalimulus discobolus has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Ciurcalimulus discobolus and its relatives

Silurian

Where Ciurcalimulus discobolus and its relatives were recorded in the Silurian.

Found in the same rock

5 taxa

The Paleobiology Database records 1 site for Ciurcalimulus discobolus, and this reads all of them. The number is how many of those sites it was catalogued from too.

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

1 reference

Each of the 1 occurrence 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. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content0

No picture of Ciurcalimulus discobolus was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Ciurcalimulus discobolus, or no answer at all. This entry cannot say which.

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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

Keep going

What may have been alongside itCiurcalimulus through timeFormations of the SilurianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Lamsdell 2025