Helotholus
No picture of Helotholus 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 Helotholus, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- PlagiacanthidaePBDB
Time the record covers
At least 13 million years on record.
The record covers at least 15.98 Mya to 2.58 Mya. No occurrence read is dated outside 23.04 Mya to 11.7 ka.
45 occurrences of Helotholus on record, most of them in the Miocene. 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
45 occurrences- Miocene49%
- Pliocene38%
- Pleistocene13%
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.
Helotholus and its relatives
MioceneWhere Helotholus and its relatives were recorded in the Miocene.
Found in the same rock
46 taxa- Spongotrochus31 sites
- Desmospyris27 sites
- Antarctissa25 sites
- Eucyrtidium22 sites
- Cycladophora20 sites
- Prunopyle20 sites
- Spongopyle15 sites
- Stylodictya14 sites
- Polysolenia13 sites
- Saccospyris11 sites
- Stylatractus11 sites
- Cornutella10 sites
- Hexacontium9 sites
- Botryopera8 sites
- Lychnocanium8 sites
- Phorticium8 sites
- Lithomelissa7 sites
- Peripyramis7 sites
- Pseudodictyophimus7 sites
- Ceratocyrtis6 sites
- Dendrospyris6 sites
- Anthocyrtis5 sites
- Lithelius5 sites
- Octodendron5 sites
The Paleobiology Database records 43 sites for Helotholus, 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
5 referencesEach of the 45 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. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content0
No picture of Helotholus 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 Helotholus, or no answer at all. This entry cannot say which.
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 itPlagiacanthidae through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Jørgensen 1905