Helicotoma subquadrata

No picture of Helicotoma subquadrata was found. Wikidata and iDigBio were searched and had none. Wikipedia and 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 Helicotoma subquadrata, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
HelicotomaPBDB
Diet
suspension feederPBDB, for Helicotoma
Life habit
epifaunalPBDB, for Helicotoma
Motility
stationaryPBDB, for Helicotoma
Vision
limitedPBDB, for Gastropoda

Time the record covers

At most 7.7 million years on record.

The one occurrence read is dated to somewhere between 457.3 Mya and 449.6 Mya, which is a dating window rather than a span.

Ordovician — about 1 of 1 occurrenceOrdovician458–457 Mya — about 0.0 occurrences457–457 Mya — about 0.0 occurrences457–457 Mya — about 0.0 occurrences457–456 Mya — about 0.0 occurrences456–456 Mya — about 0.0 occurrences456–456 Mya — about 0.0 occurrences456–455 Mya — about 0.0 occurrences455–455 Mya — about 0.0 occurrences455–455 Mya — about 0.0 occurrences455–455 Mya — about 0.0 occurrences455–454 Mya — about 0.0 occurrences454–454 Mya — about 0.0 occurrences454–454 Mya — about 0.0 occurrences454–453 Mya — about 0.0 occurrences453–453 Mya — about 0.0 occurrences453–453 Mya — about 0.0 occurrences453–453 Mya — about 0.0 occurrences453–452 Mya — about 0.0 occurrences452–452 Mya — about 0.0 occurrences452–452 Mya — about 0.0 occurrences452–451 Mya — about 0.0 occurrences451–451 Mya — about 0.0 occurrences451–451 Mya — about 0.0 occurrences451–451 Mya — about 0.0 occurrences451–450 Mya — about 0.0 occurrences450–450 Mya — about 0.0 occurrences450–450 Mya — about 0.0 occurrences450–449 Mya — about 0.0 occurrences457.8 Mya449.1 Mya

1 occurrence of Helicotoma subquadrata 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

1 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

Murfreesboro Limestone — 35.50°N, 86.50°W

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

Helicotoma subquadrata and its relatives

Ordovician

Where Helicotoma subquadrata and its relatives were recorded in the Ordovician.

Found in the same rock

40 taxa

The Paleobiology Database records 1 site for Helicotoma subquadrata, 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

1 reference

Each of the 1 occurrence 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 Helicotoma subquadrata was found. Wikidata and iDigBio were searched and had none.

Wikipedia and 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 Helicotoma subquadrata, or no answer at all. This entry cannot say which.

No 3D scan of Helicotoma subquadrata 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 itHelicotoma through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Ulrich and Scofield 1897