Helcionelloidea

No picture of Helcionelloidea was found. Wikidata and iDigBio were searched and had none. Wikipedia has a picture filed under this name, but nothing tied it to Helcionelloidea itself, so it was not used. 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 Helcionelloidea, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
HelcionellidaPBDB
Diet
detritivorePBDB, for Helcionellida
Life habit
low-level epifaunalPBDB, for Helcionellida
Motility
slow-movingPBDB, for Helcionellida
Vision
limitedPBDB, for Helcionelloida
Environment
marinePBDB, for Helcionelloida

Time the record covers

At least 27 million years on record.

The record covers at least 530.7 Mya to 503 Mya. No occurrence read is dated outside 538.8 Mya to 497 Mya.

Cambrian — about 28 of 28 occurrencesCambrian540–538 Mya — about 0.2 occurrences538–537 Mya — about 0.4 occurrences537–535 Mya — about 0.4 occurrences535–534 Mya — about 0.4 occurrences534–532 Mya — about 0.4 occurrences532–531 Mya — about 0.4 occurrences531–529 Mya — about 1 occurrence529–528 Mya — about 1 occurrence528–527 Mya — about 1 occurrence527–525 Mya — about 2 occurrences525–524 Mya — about 4 occurrences524–522 Mya — about 4 occurrences522–521 Mya — about 3 occurrences521–519 Mya — about 0.1 occurrences519–518 Mya — about 0.1 occurrences518–516 Mya — about 0.1 occurrences516–515 Mya — about 1 occurrence515–514 Mya — about 2 occurrences514–512 Mya — about 2 occurrences512–511 Mya — about 0.8 occurrences511–509 Mya — about 0.5 occurrences509–508 Mya — about 0.1 occurrences508–506 Mya — about 0.4 occurrences506–505 Mya — about 0.5 occurrences505–503 Mya — about 0.2 occurrences503–502 Mya — about 1.0 occurrences502–501 Mya — about 1 occurrence501–499 Mya — about 0.2 occurrences499–498 Mya — about 0.2 occurrences498–496 Mya — about 0.1 occurrences530.7 Mya503 Mya539.6 Mya496.2 Mya

28 occurrences of Helcionelloidea on record, most of them in the Cambrian. 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

28 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

12 formations

Zhujiaqing — 24.73°N, 102.57°EZhujiaqing — 26.28°N, 103.22°EZhujiaqing — 26.38°N, 103.21°EHuangshandong — 30.70°N, 111.28°EHuangshandong — 30.83°N, 111.17°EBastion — 74.10°N, 23.00°WParara — 34.73°S, 137.63°ETannenknock — 50.20°N, 11.56°EKap Stanton — 80.25°N, 62.50°WSoltanieh — 35.67°N, 51.42°EPestrotsvet — 57.35°N, 131.20°EJince — 49.78°N, 13.97°EDengying — 25.52°N, 103.07°EMedvezhya — 70.14°N, 114.00°EKugda-Yuryakh — 70.14°N, 114.00°E

Loading coastlines…

The named rock units Helcionelloidea has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Helcionelloidea and its relatives

Cambrian

Where Helcionelloidea and its relatives were recorded in the Cambrian.

Found in the same rock

296 taxa

The Paleobiology Database records 22 sites for Helcionelloidea, 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

12 references

Each of the 28 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 Helcionelloidea was found. Wikidata and iDigBio were searched and had none.

Wikipedia has a picture filed under this name, but nothing tied it to Helcionelloidea itself, so it was not used.

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 Helcionelloidea, or no answer at all. This entry cannot say which.

No 3D scan of Helcionelloidea was found in MorphoSource and Sketchfab.

Smithsonian Open Access was 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 itHelcionellida through timeFormations of the CambrianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Wenz 1938