Helcionellida

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

On record

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

Time the record covers

At least 49 million years on record.

The record covers at least 530.7 Mya to 481.1 Mya. No occurrence read is dated outside 538.8 Mya to 477.1 Mya.

Cambrian — about 1518 of 1522 occurrencesCambrianOrdovician — about 4 of 1522 occurrencesOrdovician540–538 Mya — about 9 occurrences538–536 Mya — about 22 occurrences536–534 Mya — about 22 occurrences534–531 Mya — about 22 occurrences531–529 Mya — about 52 occurrences529–527 Mya — about 71 occurrences527–525 Mya — about 97 occurrences525–523 Mya — about 198 occurrences523–521 Mya — about 185 occurrences521–519 Mya — about 75 occurrences519–517 Mya — about 75 occurrences517–514 Mya — about 158 occurrences514–512 Mya — about 187 occurrences512–510 Mya — about 82 occurrences510–508 Mya — about 54 occurrences508–506 Mya — about 56 occurrences506–504 Mya — about 61 occurrences504–502 Mya — about 33 occurrences502–499 Mya — about 27 occurrences499–497 Mya — about 15 occurrences497–495 Mya — about 3 occurrences495–493 Mya — about 1 occurrence493–491 Mya — about 1 occurrence491–489 Mya — about 5 occurrences489–487 Mya — about 5 occurrences487–484 Mya — about 0.9 occurrences484–482 Mya — about 1.0 occurrences482–480 Mya — about 1 occurrence480–478 Mya — about 1 occurrence478–476 Mya — about 0.5 occurrences530.7 Mya481.1 Mya540 Mya476 Mya

1,522 occurrences of Helcionellida 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

1,522 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

148 formations

Zhujiaqing — 25.64°N, 103.07°EZhujiaqing — 27.93°N, 103.56°EZhujiaqing — 26.38°N, 103.07°EZhujiaqing — 24.73°N, 102.57°EZhujiaqing — 24.67°N, 102.65°EZhujiaqing — 26.28°N, 103.22°EZhujiaqing — 24.65°N, 103.13°EZhujiaqing — 25.52°N, 103.07°EZhujiaqing — 26.38°N, 103.21°EPestrotsvet — 58.75°N, 128.00°EPestrotsvet — 58.75°N, 127.00°EPestrotsvet — 60.83°N, 125.33°EPestrotsvet — 57.35°N, 131.20°EPestrotsvet — 57.67°N, 131.83°EPestrotsvet — 57.17°N, 132.00°EPestrotsvet — 60.70°N, 124.72°EPestrotsvet — 60.92°N, 125.77°EPestrotsvet — 60.83°N, 125.40°EPestrotsvet — 66.40°N, 112.28°EPestrotsvet — 71.83°N, 107.00°EPestrotsvet — 71.50°N, 105.00°EPestrotsvet — 61.13°N, 126.80°EPestrotsvet — 57.40°N, 132.73°EParara — 34.73°S, 137.63°EParara — 34.70°S, 137.71°EParara — 34.80°S, 137.69°EDengying — 26.33°N, 103.17°EDengying — 26.42°N, 103.50°EDengying — 25.08°N, 102.98°EDengying — 25.48°N, 103.03°EDengying — 33.00°N, 107.92°EDengying — 32.35°N, 106.82°EDengying — 28.27°N, 103.40°EDengying — 30.73°N, 111.13°EDengying — 30.77°N, 111.12°EDengying — 25.52°N, 103.07°EDengying — 24.72°N, 102.56°EDengying — 33.67°N, 109.46°EParara Limestone — 34.92°S, 137.80°EHenson Gletscher — 82.00°N, 42.00°WHenson Gletscher — 82.50°N, 36.33°WHenson Gletscher — 82.20°N, 30.08°WHenson Gletscher — 82.25°N, 29.75°WHenson Gletscher — 82.17°N, 39.67°WHenson Gletscher — 82.29°N, 39.68°WHenson Gletscher — 82.15°N, 42.42°WHenson Gletscher — 82.16°N, 42.45°WHenson Gletscher — 82.17°N, 40.40°WHenson Gletscher — 82.30°N, 37.05°WAjax Limestone — 30.59°S, 138.33°EMernmerna — 31.19°S, 138.87°EMernmerna — 31.41°S, 138.43°EMernmerna — 31.41°S, 138.56°EMernmerna — 30.81°S, 140.69°EMernmerna — 31.55°S, 140.79°EMernmerna — 30.79°S, 139.14°EBastion — 74.10°N, 23.00°WBastion — 74.35°N, 22.77°WBastion — 73.52°N, 24.68°WBastion — 72.85°N, 25.03°WHuangshandong — 30.70°N, 111.28°EHuangshandong — 30.83°N, 111.17°EBystraya — 52.00°N, 119.00°EChapel Island — 46.92°N, 56.00°WChapel Island — 47.00°N, 56.00°WChapel Island — 47.07°N, 55.87°WJbel Wawrmast — 30.67°N, 8.17°EJbel Wawrmast — 30.67°N, 8.17°WJbel Wawrmast — 32.00°N, 6.00°WJbel Wawrmast — 30.58°N, 7.20°WJbel Wawrmast — 31.21°N, 7.88°WJbel Wawrmast — 31.08°N, 8.13°WJbel Wawrmast — 31.52°N, 5.02°WJbel Wawrmast — 31.37°N, 5.02°WXinji — 33.27°N, 112.98°EXinji — 34.53°N, 110.87°EXinji — 33.38°N, 113.43°EXinji — 34.90°N, 106.85°EEmyaksin — 62.00°N, 129.67°EEmyaksin — 70.72°N, 112.88°EEmyaksin — 70.22°N, 113.70°EEmyaksin — 70.72°N, 112.76°EMedvezhyn — 71.00°N, 102.00°EMedvezhyn — 70.64°N, 103.43°EMedvezhyn — 70.62°N, 103.53°EMedvezhyn — 71.50°N, 102.50°EZhujianqing — 24.73°N, 102.57°EBrowns Pond — 42.22°N, 73.73°WMedvezhya — 71.33°N, 99.50°EMedvezhya — 70.14°N, 114.00°EMedvezhin — 70.50°N, 103.40°EMedvezhin — 70.67°N, 103.00°ETindall Limestone — 13.33°S, 130.63°ETindall Limestone — 13.50°S, 131.07°ETindall Limestone — 13.88°S, 131.15°ETindall Limestone — 13.82°S, 131.35°ETindall Limestone — 14.25°S, 131.38°ETindall Limestone — 14.50°S, 132.17°ETindall Limestone — 13.68°S, 131.33°ETindall Limestone — 13.78°S, 131.32°ETindall Limestone — 13.97°S, 131.02°ETindall Limestone — 13.80°S, 131.00°ETindall Limestone — 13.92°S, 130.42°EYanjiahe — 30.73°N, 111.08°EYanjiahe — 30.73°N, 111.03°EYanjiahe — 30.78°N, 111.35°ECoonigan — 31.31°S, 142.18°EShackleton Limestone — 82.21°S, 160.33°WShackleton Limestone — 82.22°S, 160.31°E

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The named rock units Helcionellida has been recovered from, largest first. Drawn where the rock is now, not where it formed. 124 further formations hold fewer occurrences each and are not listed. 18 occurrences have no formation on record, which is common for older literature.

Helcionellida and its relatives

Cambrian

Where Helcionellida and its relatives were recorded in the Cambrian.

Found in the same rock

1,104 taxa

The Paleobiology Database records 621 sites for Helcionellida, and this reads 240 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

199 references

Each of the 1,522 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. 187 further references are not listed. 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 Helcionellida was found. Wikidata and iDigBio were searched and had none.

Wikipedia has a picture filed under this name, but nothing tied it to Helcionellida 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 Helcionellida, or no answer at all. This entry cannot say which.

No 3D scan of Helcionellida 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 itHelcionelloida through timeFormations of the CambrianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Geyer 1994