Tholodiscus
No picture of Tholodiscus was found. Wikidata and iDigBio were searched and had none. Wikipedia and 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 Tholodiscus, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- SpongodiscidaePBDB
Time the record covers
At least 10 million years on record.
The record covers at least 72.2 Mya to 61.66 Mya. No occurrence read is dated outside 83.6 Mya to 59.24 Mya.
66 occurrences of Tholodiscus on record, most of them in the Paleocene. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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
66 occurrences- Late Cretaceous23%
- Paleocene77%
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
4 formations
- Mead Hill Formation42
- Solan Formation1
- A Formation · Hakobuchi Group1
- B Formation · Hakobuchi Group1
Loading coastlines…
The named rock units Tholodiscus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 21 occurrences have no formation on record, which is common for older literature.
Tholodiscus and its relatives
PaleoceneWhere Tholodiscus and its relatives were recorded in the Paleocene.
Found in the same rock
108 taxa- Amphipyndax stocki40 sites
- Lithomespilus38 sites
- Actinomminae37 sites
- Dictyomitra andersoni37 sites
- Cornutella californica36 sites
- Lithelius36 sites
- Stichomitra carnegiense36 sites
- Amphisphaera35 sites
- Myllocercion35 sites
- Dictyomitra multicostata34 sites
- Mita34 sites
- Eucyrtidiidae33 sites
- Theocapsomma33 sites
- Theocampe32 sites
- Amphipternis31 sites
- Archaeodictyomitra31 sites
- Lithocampe31 sites
- Protoxiphotractus31 sites
- Spongodiscus31 sites
- Stichomitra31 sites
- Spongotrochus30 sites
- Lithomelissa29 sites
- Cyrtocapsa28 sites
- Siphocampe28 sites
The Paleobiology Database records 41 sites for Tholodiscus, 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
3 references- Stratigraphic, paleontological and geochemical data from Upper Cretaceous and Lower Paleocene strata in southeastern Marlborough, New Zealand62
- Radiolarian biostratigraphic study of the Hakobuchi Group in the Nakatonbetsu area, north Hokkaido3
- Uppermost Maastrichtian Radiolaria from the Magura Nappe deposits, Czech Outer Carpathians1
Each of the 66 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 the Paleobiology Database's own record for the work.
Media and terms
Media content0
No picture of Tholodiscus was found. Wikidata and iDigBio were searched and had none.
Wikipedia and 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 Tholodiscus, or no answer at all. This entry cannot say which.
No 3D scan of Tholodiscus 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 itSpongodiscidae through timeFormations of the PaleoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Petrushevskaya and Kozlova 1972