Exallaspis

No picture of Exallaspis was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Exallaspis, or no answer at all. This entry cannot say which.

On record

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

Time the record covers

At least 18 million years on record.

The record covers at least 440.8 Mya to 422.7 Mya. No occurrence read is dated outside 443.1 Mya to 421.3 Mya.

Ordovician — about 0 of 48 occurrencesSilurian — about 48 of 48 occurrencesSilurian444–443 Mya — about 2 occurrences443–442 Mya — about 5 occurrences442–441 Mya — about 5 occurrences441–441 Mya — about 5 occurrences441–440 Mya — about 4 occurrences440–439 Mya — about 4 occurrences439–438 Mya — about 3 occurrences438–438 Mya — about 2 occurrences438–437 Mya — about 2 occurrences437–436 Mya — about 2 occurrences436–435 Mya — about 2 occurrences435–434 Mya — about 2 occurrences434–434 Mya — about 2 occurrences434–433 Mya — about 2 occurrences433–432 Mya — about 0.5 occurrences432–431 Mya — about 0.4 occurrences431–431 Mya — about 0.4 occurrences431–430 Mya — about 1 occurrence430–429 Mya — about 1 occurrence429–428 Mya — about 1 occurrence428–428 Mya — about 1 occurrence428–427 Mya — about 1 occurrence427–426 Mya — about 0.6 occurrences426–425 Mya — about 0.3 occurrences425–425 Mya — about 0.1 occurrences423–422 Mya — about 0.5 occurrences422–422 Mya — about 1 occurrence422–421 Mya — about 0.4 occurrences440.8 Mya422.7 Mya443.6 Mya420.8 Mya

48 occurrences of Exallaspis 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

48 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

19 formations

Becscie — 49.40°N, 62.43°WBecscie — 49.80°N, 64.42°WBecscie — 49.82°N, 64.33°WBecscie — 49.74°N, 63.90°WJupiter — 49.51°N, 63.63°WJupiter — 49.47°N, 63.12°WJupiter — 49.56°N, 63.35°WJupiter — 49.24°N, 62.29°WJupiter — 49.21°N, 62.23°WJupiter — 49.18°N, 62.41°WJupiter — 49.14°N, 62.34°WJupiter — 49.26°N, 62.29°WCanon de Caballeros — 23.75°N, 99.26°WMiddle Elton — 52.00°N, 4.00°WHalla — 57.31°N, 18.07°EMulde — 57.30°N, 18.15°ERastrites Shale — 57.26°N, 23.11°ERastrites Shale — 57.22°N, 21.60°EMosalem — 42.42°N, 90.43°WSolvik — 59.92°N, 10.75°EHughley Shales — 52.46°N, 2.85°WPentamerus Beds — 52.67°N, 2.00°WRhydings — 52.67°N, 2.00°WTrefawr — 52.67°N, 2.00°WMuch Wenlock — 52.50°N, 2.08°WWoodland — 55.22°N, 4.88°WNewlands Farm — 55.28°N, 4.74°WWood Burn Grits — 55.25°N, 4.76°WFröjel — 57.89°N, 18.72°EPentamerus — 52.58°N, 2.98°W

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The named rock units Exallaspis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 4 occurrences have no formation on record, which is common for older literature.

Exallaspis and its relatives

Silurian

Where Exallaspis and its relatives were recorded in the Silurian.

Found in the same rock

174 taxa

The Paleobiology Database records 46 sites for Exallaspis, 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

10 references

Each of the 48 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 Exallaspis was found. Wikipedia, Wikidata and iDigBio were searched and had none.

Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.

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

No 3D scan of Exallaspis 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 itAcidaspidinae through timeFormations of the SilurianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Ramsköld and Chatterton 1991