Hedstroemina fragilis

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

On record

Recorded, not inferred
Sits inside
HedstroeminaPBDB
Diet
suspension feederPBDB, for Rafinesquinidae
Life habit
epifaunalPBDB, for Rafinesquinidae
Motility
stationaryPBDB, for Rafinesquinidae
Vision
blindPBDB, for Strophomenata
Environment
marinePBDB, for Lophophorata

Time the record covers

At most 8.7 million years on record.

Every occurrence read is dated to somewhere between 458.2 Mya and 449.5 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Ordovician — about 6 of 6 occurrencesOrdovician458–458 Mya — about 0.0 occurrences458–458 Mya — about 0.1 occurrences458–457 Mya — about 0.1 occurrences457–457 Mya — about 0.1 occurrences457–457 Mya — about 0.1 occurrences457–456 Mya — about 0.1 occurrences456–456 Mya — about 0.1 occurrences456–456 Mya — about 0.1 occurrences456–455 Mya — about 0.1 occurrences455–455 Mya — about 0.1 occurrences455–455 Mya — about 0.2 occurrences455–454 Mya — about 0.2 occurrences454–454 Mya — about 0.2 occurrences454–454 Mya — about 0.2 occurrences454–454 Mya — about 0.2 occurrences454–453 Mya — about 0.2 occurrences453–453 Mya — about 0.2 occurrences453–453 Mya — about 0.2 occurrences453–452 Mya — about 0.2 occurrences452–452 Mya — about 0.2 occurrences452–452 Mya — about 0.2 occurrences452–451 Mya — about 0.3 occurrences451–451 Mya — about 0.4 occurrences451–451 Mya — about 0.4 occurrences451–450 Mya — about 0.4 occurrences450–450 Mya — about 0.4 occurrences450–450 Mya — about 0.4 occurrences450–449 Mya — about 0.2 occurrences458.7 Mya449 Mya

6 occurrences of Hedstroemina fragilis 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

2 formations

Acton Scott — 52.50°N, 2.82°WActon Scott — 53.07°N, 2.96°WCheney Longville — 52.71°N, 2.64°WCheney Longville — 52.47°N, 2.84°W

Loading coastlines…

The named rock units Hedstroemina fragilis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.

Hedstroemina fragilis and its relatives

Ordovician

Where Hedstroemina fragilis and its relatives were recorded in the Ordovician.

Found in the same rock

No other named taxon is catalogued from any of those sites.

The Paleobiology Database records 6 sites for Hedstroemina fragilis, and this reads all of them.

Entered from

1 reference

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. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content0

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

No 3D scan of Hedstroemina fragilis 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 itHedstroemina through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Bancroft 1929