Helicelasma rusticum

No picture of Helicelasma rusticum was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Helicelasma rusticum, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
HelicelasmaPBDB
Diet
suspension feederPBDB, for Rugosa
Life habit
epifaunalPBDB, for Rugosa
Motility
stationary, attachedPBDB, for Rugosa
Vision
blindPBDB, for Anthozoa
Environment
marinePBDB, for Rugosa

Time the record covers

At least 100 thousand years on record.

The record covers at least 449.6 Mya to 449.5 Mya. No occurrence read is dated outside 458.2 Mya to 443.1 Mya.

Ordovician — about 21 of 21 occurrencesOrdovicianSilurian — about 0 of 21 occurrences459–458 Mya — about 0.0 occurrences458–458 Mya — about 0.0 occurrences458–457 Mya — about 0.0 occurrences457–457 Mya — about 0.0 occurrences457–456 Mya — about 0.0 occurrences456–455 Mya — about 0.0 occurrences455–455 Mya — about 0.0 occurrences455–454 Mya — about 0.0 occurrences454–454 Mya — about 0.0 occurrences454–453 Mya — about 0.0 occurrences453–453 Mya — about 0.0 occurrences453–452 Mya — about 0.0 occurrences452–452 Mya — about 0.0 occurrences452–451 Mya — about 0.0 occurrences451–451 Mya — about 0.0 occurrences451–450 Mya — about 0.2 occurrences450–450 Mya — about 1 occurrence450–449 Mya — about 2 occurrences449–449 Mya — about 2 occurrences449–448 Mya — about 2 occurrences448–447 Mya — about 2 occurrences447–447 Mya — about 2 occurrences447–446 Mya — about 2 occurrences446–446 Mya — about 2 occurrences446–445 Mya — about 2 occurrences445–445 Mya — about 0.3 occurrences445–444 Mya — about 0.3 occurrences444–444 Mya — about 0.3 occurrences444–443 Mya — about 0.3 occurrences443–443 Mya — about 0.0 occurrences449.6 Mya – 449.5 Mya458.7 Mya442.6 Mya

21 occurrences of Helicelasma rusticum 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

10 formations

Stonington — 45.67°N, 86.97°WStonington — 45.67°N, 86.93°WStonington — 45.93°N, 86.98°WGeorgian Bay — 45.75°N, 81.67°WGeorgian Bay — 43.67°N, 79.42°WDillsboro — 39.16°N, 84.46°WArnheim — 35.50°N, 86.50°WFremont — 38.00°N, 105.00°WLiberty — 38.20°N, 85.57°WBig Hill — 45.83°N, 86.95°WRichmond — 45.75°N, 86.83°WWhitewater — 38.00°N, 85.50°WVaureal — 49.67°N, 62.92°W

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The named rock units Helicelasma rusticum has been recovered from, largest first. Drawn where the rock is now, not where it formed. 6 occurrences have no formation on record, which is common for older literature.

Helicelasma rusticum and its relatives

Ordovician

Where Helicelasma rusticum and its relatives were recorded in the Ordovician.

Found in the same rock

237 taxa

The Paleobiology Database records 21 sites for Helicelasma rusticum, 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

10 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. 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 Helicelasma rusticum was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Helicelasma rusticum, or no answer at all. This entry cannot say which.

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itHelicelasma through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Billings 1858)