Helicotoma planulata

Helicotoma planulata

via iDigBio · via iDigBio. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.

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 least 4.2 million years on record.

The record covers at least 453.8 Mya to 449.6 Mya. No occurrence read is dated outside 457.3 Mya to 445.5 Mya.

Ordovician — about 27 of 27 occurrencesOrdovician457–457 Mya — about 2 occurrences457–457 Mya — about 2 occurrences457–456 Mya — about 2 occurrences456–456 Mya — about 2 occurrences456–455 Mya — about 2 occurrences455–455 Mya — about 2 occurrences455–454 Mya — about 2 occurrences454–454 Mya — about 2 occurrences454–454 Mya — about 1 occurrence454–453 Mya — about 1 occurrence453–453 Mya — about 1 occurrence453–452 Mya — about 1 occurrence452–452 Mya — about 1 occurrence452–451 Mya — about 1 occurrence451–451 Mya — about 1 occurrence451–451 Mya — about 0.9 occurrences451–450 Mya — about 0.9 occurrences450–450 Mya — about 0.9 occurrences450–449 Mya — about 0.3 occurrences449–449 Mya — about 0.1 occurrences449–448 Mya — about 0.1 occurrences448–448 Mya — about 0.1 occurrences448–448 Mya — about 0.1 occurrences448–447 Mya — about 0.1 occurrences447–447 Mya — about 0.1 occurrences447–446 Mya — about 0.1 occurrences446–446 Mya — about 0.1 occurrences446–445 Mya — about 0.1 occurrences453.8 Mya449.6 Mya457.8 Mya445 Mya

27 occurrences of Helicotoma planulata 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

27 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

16 formations

Chaumont — 45.45°N, 76.69°WChaumont — 45.88°N, 76.93°WChaumont — 45.41°N, 75.73°WChaumont — 45.43°N, 75.53°WChaumont — 45.47°N, 74.81°WBobcaygeon — 44.67°N, 78.80°WBobcaygeon — 44.53°N, 78.55°WBobcaygeon — 45.88°N, 76.93°WGrand Detour — 42.00°N, 90.50°WGrand Detour — 42.55°N, 89.23°WLowville — 45.42°N, 75.70°WLowville — 45.45°N, 75.59°WPlatteville — 46.00°N, 94.00°WDecorah Shale — 46.00°N, 94.00°WPecatonica — 42.00°N, 90.50°WMifflin — 42.00°N, 90.50°WNachusa — 42.00°N, 90.50°WQuimbys Mill — 42.00°N, 90.50°WSpechts Ferry — 42.00°N, 90.50°WGull River — 44.67°N, 78.80°WVerulam — 44.45°N, 78.70°WMcGregor — 42.00°N, 89.39°WGeorgian Bay — 45.90°N, 82.26°WMacy — 39.53°N, 91.36°W

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

Helicotoma planulata and its relatives

Ordovician

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

Found in the same rock

353 taxa

The Paleobiology Database records 26 sites for Helicotoma planulata, 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

8 references

Each of the 27 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 content1

Picture of Helicotoma planulata

Source
iDigBio
Credit
via iDigBio
Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record

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 itHelicotoma through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Salter 1859