Hemiphragma rotundatum

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

On record

Recorded, not inferred
Sits inside
HemiphragmaPBDB
Diet
suspension feederPBDB, for Stenolaemata
Life habit
epifaunalPBDB, for Bryozoa
Motility
stationary, attachedPBDB, for Stenolaemata
Vision
blindPBDB, for Stenolaemata
Environment
marinePBDB, for Lophophorata

Time the record covers

At least 6.3 million years on record.

The record covers at least 464.3 Mya to 458 Mya. No occurrence read is dated outside 469.4 Mya to 456.8 Mya.

Ordovician — about 6 of 6 occurrencesOrdovician469–469 Mya — about 0.1 occurrences469–469 Mya — about 0.2 occurrences469–468 Mya — about 0.2 occurrences468–468 Mya — about 0.2 occurrences468–467 Mya — about 0.2 occurrences467–467 Mya — about 0.2 occurrences467–466 Mya — about 0.2 occurrences466–466 Mya — about 0.2 occurrences466–465 Mya — about 0.2 occurrences465–465 Mya — about 0.2 occurrences465–464 Mya — about 0.2 occurrences464–464 Mya — about 0.1 occurrences464–464 Mya — about 0.0 occurrences464–463 Mya — about 0.0 occurrences463–463 Mya — about 0.0 occurrences463–462 Mya — about 0.0 occurrences462–462 Mya — about 0.0 occurrences462–461 Mya — about 0.1 occurrences461–461 Mya — about 0.2 occurrences461–460 Mya — about 0.2 occurrences460–460 Mya — about 0.2 occurrences460–459 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 0.6 occurrences458–457 Mya — about 0.8 occurrences457–457 Mya — about 0.7 occurrences464.3 Mya458 Mya469.9 Mya456.3 Mya

6 occurrences of Hemiphragma rotundatum 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

6 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

Pakri — 59.34°N, 23.98°E

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The named rock units Hemiphragma rotundatum has been recovered from, largest first. Drawn where the rock is now, not where it formed. 5 occurrences have no formation on record, which is common for older literature.

Hemiphragma rotundatum and its relatives

Ordovician

Where Hemiphragma rotundatum and its relatives were recorded in the Ordovician.

Found in the same rock

58 taxa

The Paleobiology Database records 6 sites for Hemiphragma rotundatum, 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 6 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 Hemiphragma rotundatum 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 Hemiphragma rotundatum, or no answer at all. This entry cannot say which.

No 3D scan of Hemiphragma rotundatum 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 itHemiphragma through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Bassler 1911