Placoblastus

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

On record

Recorded, not inferred
Sits inside
NucleocrinidaePBDB
Diet
suspension feederPBDB, for Blastoidea
Life habit
intermediate-level epifaunalPBDB, for Blastoidea
Motility
stationary, attachedPBDB, for Blastoidea
Vision
blindPBDB, for Blastoidea
Environment
marinePBDB, for Echinodermata

Time the record covers

At most 12 million years on record.

Every occurrence read is dated to somewhere between 393.47 Mya and 382.31 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Devonian — about 8 of 8 occurrencesDevonian394–393 Mya — about 0.1 occurrences393–393 Mya — about 0.1 occurrences393–392 Mya — about 0.1 occurrences392–392 Mya — about 0.1 occurrences392–392 Mya — about 0.1 occurrences392–391 Mya — about 0.1 occurrences391–391 Mya — about 0.1 occurrences391–390 Mya — about 0.1 occurrences390–390 Mya — about 0.1 occurrences390–390 Mya — about 0.1 occurrences390–389 Mya — about 0.1 occurrences389–389 Mya — about 0.1 occurrences389–388 Mya — about 0.1 occurrences388–388 Mya — about 0.1 occurrences388–387 Mya — about 0.5 occurrences387–387 Mya — about 0.5 occurrences387–387 Mya — about 0.5 occurrences387–386 Mya — about 0.5 occurrences386–386 Mya — about 0.5 occurrences386–385 Mya — about 0.5 occurrences385–385 Mya — about 0.5 occurrences385–385 Mya — about 0.5 occurrences385–384 Mya — about 0.5 occurrences384–384 Mya — about 0.5 occurrences384–383 Mya — about 0.5 occurrences383–383 Mya — about 0.5 occurrences383–383 Mya — about 0.5 occurrences383–382 Mya — about 0.4 occurrences394 Mya381.8 Mya

8 occurrences of Placoblastus on record, most of them in the Devonian. 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

4 formations

Ludlowville — 42.78°N, 78.86°WLudlowville — 42.80°N, 77.27°WLudlowville — 42.82°N, 78.68°WJaycox — 42.85°N, 77.83°WJaycox — 42.89°N, 77.70°WMoscow — 42.82°N, 77.57°WThunder Bay Limestone — 45.06°N, 83.43°W

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

Placoblastus and its relatives

Devonian

Where Placoblastus and its relatives were recorded in the Devonian.

Found in the same rock

71 taxa

The Paleobiology Database records 6 sites for Placoblastus, 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

5 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 Placoblastus 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 Placoblastus, or no answer at all. This entry cannot say which.

No 3D scan of Placoblastus 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 itNucleocrinidae through timeFormations of the DevonianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Fay 1961