Pseudobasilicus brachyrachis

Pseudobasilicus brachyrachis

via iDigBio · via iDigBio. 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
PseudobasilicusPBDB
Diet
carnivorePBDB, for Trilobita
Life habit
low-level epifaunalPBDB, for Asaphida
Motility
fast-movingPBDB, for Asaphida
Vision
well-developedPBDB, for Asaphidae
Environment
marinePBDB, for Trilobita

Time the record covers

At most 6.3 million years on record.

Every occurrence read is dated to somewhere between 464.3 Mya and 458 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Ordovician — about 21 of 21 occurrencesOrdovician464–464 Mya — about 0.8 occurrences464–464 Mya — about 0.8 occurrences464–464 Mya — about 0.8 occurrences464–463 Mya — about 0.8 occurrences463–463 Mya — about 0.8 occurrences463–463 Mya — about 0.8 occurrences463–463 Mya — about 0.8 occurrences463–462 Mya — about 0.8 occurrences462–462 Mya — about 0.8 occurrences462–462 Mya — about 0.8 occurrences462–462 Mya — about 0.8 occurrences462–461 Mya — about 0.8 occurrences461–461 Mya — about 1 occurrence461–461 Mya — about 1 occurrence461–461 Mya — about 1 occurrence461–460 Mya — about 1 occurrence460–460 Mya — about 1 occurrence460–460 Mya — about 1 occurrence460–460 Mya — about 1 occurrence460–459 Mya — about 0.2 occurrences459–459 Mya — about 0.2 occurrences459–459 Mya — about 0.2 occurrences459–459 Mya — about 0.2 occurrences459–458 Mya — about 0.2 occurrences458–458 Mya — about 0.2 occurrences458–458 Mya — about 0.1 occurrences464.8 Mya457.5 Mya

21 occurrences of Pseudobasilicus brachyrachis 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

21 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

4 formations

Seby Limestone — 60.91°N, 15.02°ESeby Limestone — 62.97°N, 14.48°EFolkeslunda — 60.91°N, 15.02°EGullhögen — 58.00°N, 12.00°EFolkeslunda Limestone — 62.97°N, 14.48°E

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The named rock units Pseudobasilicus brachyrachis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 16 occurrences have no formation on record, which is common for older literature.

Pseudobasilicus brachyrachis and its relatives

Ordovician

Where Pseudobasilicus brachyrachis and its relatives were recorded in the Ordovician.

Found in the same rock

53 taxa

The Paleobiology Database records 21 sites for Pseudobasilicus brachyrachis, 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

3 references

Each of the 21 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. Each entry links to the Paleobiology Database's own record for the work.

Media and terms

Media content1

Picture of Pseudobasilicus brachyrachis

Source
iDigBio
Credit
via iDigBio
Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record

No 3D scan of Pseudobasilicus brachyrachis 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 itPseudobasilicus through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Törnquist 1884)