Coleoloides

Coleoloides, or the coleolids, are a genus of Cambrian small shelly fossils with an aragonite skeleton. They were first described in 1889 by Charles Doolittle Walcott as members of the pteropods. Their affinity is unknown but they were probably produced by an organism of the annelid grade of complexity. Calcium carbonate fossils of coleolids have been found at Newfoundland clustered together, oriented vertically.

No picture of Coleoloides 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 Coleoloides, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
ProblematicaPBDB
Life habit
semi-infaunalPBDB
Motility
stationaryPBDB
Environment
marinePBDB

Time the record covers

At least 32 million years on record.

The record covers at least 538.8 Mya to 506.5 Mya. No occurrence read is dated outside 635 Mya to 504.5 Mya.

Cambrian — about 47 of 48 occurrencesCambrian638–633 Mya — about 0.0 occurrences633–629 Mya — about 0.0 occurrences629–624 Mya — about 0.0 occurrences624–620 Mya — about 0.0 occurrences620–615 Mya — about 0.0 occurrences615–610 Mya — about 0.0 occurrences610–606 Mya — about 0.0 occurrences606–601 Mya — about 0.0 occurrences601–597 Mya — about 0.0 occurrences597–592 Mya — about 0.0 occurrences592–588 Mya — about 0.0 occurrences588–583 Mya — about 0.0 occurrences583–579 Mya — about 0.0 occurrences579–574 Mya — about 0.0 occurrences574–570 Mya — about 0.0 occurrences570–565 Mya — about 0.0 occurrences565–561 Mya — about 0.0 occurrences561–556 Mya — about 0.0 occurrences556–552 Mya — about 0.0 occurrences552–547 Mya — about 0.0 occurrences547–543 Mya — about 0.0 occurrences543–538 Mya — about 0.1 occurrences538–534 Mya — about 0.7 occurrences534–529 Mya — about 1 occurrence529–525 Mya — about 7 occurrences525–520 Mya — about 21 occurrences520–515 Mya — about 6 occurrences515–511 Mya — about 7 occurrences511–506 Mya — about 4 occurrences506–502 Mya — about 1.0 occurrences538.8 Mya506.5 Mya638 Mya502 Mya

48 occurrences of Coleoloides 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

48 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

21 formations

Hartshill — 52.57°N, 1.55°WHartshill — 52.52°N, 1.46°WCuslett — 46.00°N, 60.00°WCuslett — 45.77°N, 60.29°WFosters Point — 46.00°N, 60.00°WFosters Point — 45.77°N, 60.29°WPestrotsvet — 57.35°N, 131.20°EPestrotsvet — 58.75°N, 128.00°EPestrotsvet — 58.75°N, 127.00°EPestrotsvet — 61.29°N, 135.50°EAnse Maranda — 46.83°N, 71.09°WLower Comley — 52.56°N, 2.76°WBrigus — 45.77°N, 60.29°WBrigus — 47.85°N, 53.94°WWeymouth — 41.95°N, 71.28°WChapel Island — 46.92°N, 56.00°WChapel Island — 47.00°N, 56.00°WTal — 30.35°N, 78.17°ETal — 30.45°N, 78.08°EShady — 36.85°N, 80.91°WDeep Spring — 37.35°N, 117.36°WCzarna Shale — 50.65°N, 20.93°EYuanshan — 24.81°N, 102.58°EUpper Krol Phosphorite — 30.50°N, 78.17°EYudomian — 61.87°N, 135.48°EQiongzhusi — 24.73°N, 102.57°EZhujiaqing — 26.28°N, 103.22°EDengying — 30.77°N, 111.12°EHenson Gletscher — 82.17°N, 40.40°WPurley Shale — 52.53°N, 1.49°W

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

Coleoloides and its relatives

Cambrian

Where Coleoloides and its relatives were recorded in the Cambrian.

Found in the same rock

279 taxa

The Paleobiology Database records 40 sites for Coleoloides, 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

24 references

Each of the 48 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. 12 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 Coleoloides 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 Coleoloides, or no answer at all. This entry cannot say which.

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

The description on this site

Licence
CC BY-SA 4.0

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

Keep going

What may have been alongside itProblematica through timeFormations of the CambrianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Walcott 1890