Sphaerexochus arenosus

No picture of Sphaerexochus arenosus 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 Sphaerexochus arenosus, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
SphaerexochusPBDB
Diet
carnivorePBDB, for Cheiruridae
Life habit
low-level epifaunalPBDB, for Trilobita
Motility
fast-movingPBDB, for Trilobita
Vision
well-developedPBDB, for Sphaerexochus
Environment
marinePBDB, for Trilobita

Time the record covers

At most 22 million years on record.

Every occurrence read is dated to somewhere between 471.3 Mya and 449.6 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Ordovician — about 8 of 8 occurrencesOrdovician472–471 Mya — about 0.1 occurrences471–470 Mya — about 0.4 occurrences470–470 Mya — about 0.4 occurrences470–469 Mya — about 0.4 occurrences469–468 Mya — about 0.4 occurrences468–467 Mya — about 0.4 occurrences467–467 Mya — about 0.4 occurrences467–466 Mya — about 0.4 occurrences466–465 Mya — about 0.4 occurrences465–464 Mya — about 0.4 occurrences464–463 Mya — about 0.4 occurrences463–463 Mya — about 0.4 occurrences463–462 Mya — about 0.4 occurrences462–461 Mya — about 0.4 occurrences461–460 Mya — about 0.4 occurrences460–460 Mya — about 0.4 occurrences460–459 Mya — about 0.4 occurrences459–458 Mya — about 0.4 occurrences458–457 Mya — about 0.4 occurrences457–457 Mya — about 0.1 occurrences457–456 Mya — about 0.1 occurrences456–455 Mya — about 0.1 occurrences455–454 Mya — about 0.1 occurrences454–454 Mya — about 0.1 occurrences454–453 Mya — about 0.1 occurrences453–452 Mya — about 0.1 occurrences452–451 Mya — about 0.1 occurrences451–451 Mya — about 0.1 occurrences451–450 Mya — about 0.1 occurrences450–449 Mya — about 0.0 occurrences471.8 Mya449.1 Mya

8 occurrences of Sphaerexochus arenosus on record, most of them in the Ordovician. 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

8 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

Esbataottine — 62.00°N, 127.00°WEsbataottine — 61.72°N, 125.93°WEsbataottine — 61.63°N, 125.75°WEsbataottine — 61.63°N, 125.73°W

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

Sphaerexochus arenosus and its relatives

Ordovician

Where Sphaerexochus arenosus and its relatives were recorded in the Ordovician.

Found in the same rock

79 taxa

The Paleobiology Database records 8 sites for Sphaerexochus arenosus, 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

2 references

Each of the 8 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. 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 content0

No picture of Sphaerexochus arenosus 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 Sphaerexochus arenosus, 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 itSphaerexochus through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Chatterton and Ludvigsen 1976