Helicosphaera
via iDigBio · CC BY · 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
- HaptophytaPBDB
- Diet
- "photoautotroph"PBDB, for Haptophyta
- Life habit
- planktonic, depth=surfacePBDB, for Haptophyta
- Motility
- passively mobilePBDB, for Haptophyta
- Environment
- oceanic,oligotrophic,marine,brackishPBDB, for Haptophyta
Time the record covers
At least 83 million years on record.
The record covers at least 83.6 Mya to 11.7 ka. No occurrence read is dated outside 85.7 Mya to 0 Mya.
8,087 occurrences of Helicosphaera on record, most of them in the Pleistocene. The Paleobiology Database records this as a living group. 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
8,087 occurrences- Late Cretaceousunder 1%
- Paleoceneunder 1%
- Eocene4%
- Oligocene6%
- Miocene28%
- Pliocene19%
- Pleistocene43%
- Holoceneunder 1%
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
- Butano Formation6
- Castle Hayne Formation3
- Blue Bluff Formation2
- Pakhna Formation2
- Esmeraldas Formation2
- Monterey Formation2
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The named rock units Helicosphaera has been recovered from, largest first. Drawn where the rock is now, not where it formed. 8,057 occurrences have no formation on record, which is common for older literature.
Helicosphaera and its relatives
PleistoceneWhere Helicosphaera and its relatives were recorded in the Pleistocene.
Found in the same rock
653 taxa- Coccolithus pelagicus182 sites
- Reticulofenestra142 sites
- Calcidiscus leptoporus136 sites
- Discoaster deflandrei124 sites
- Sphenolithus moriformis118 sites
- Cyclicargolithus floridanus105 sites
- Umbilicosphaera101 sites
- Discoaster98 sites
- Calcidiscus85 sites
- Gephyrocapsa84 sites
- Reticulofenestra pseudoumbilicus84 sites
- Sphenolithus80 sites
- Coronocyclus77 sites
- Coccolithus75 sites
- Pseudoemiliania68 sites
- Pontosphaera64 sites
- Triquetrorhabdulus64 sites
- Helicopontosphaera granulata49 sites
- Syracosphaera47 sites
- Umbilicosphaera jafari47 sites
- Sphenolithus abies41 sites
- Calcidiscus macintyrei39 sites
- Rhabdosphaera39 sites
- Florisphaera35 sites
The Paleobiology Database records at least 1,271 sites for Helicosphaera, 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
147 references- Site U1456255
- Site U1352216
- Site U1389214
- Site U1457211
- Site U1474208
- Site U1505201
- Site U1437200
- Site U1406196
- Site U1471183
- Site U1447170
- Site U1476163
- Site U1482157
Each of the 8,087 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. 135 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 content1
Picture of Helicosphaera
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC BY
- Commercial use
- the licence allows it
No 3D scan of Helicosphaera 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 itHaptophyta through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Kamptner 1954