Clathrocyclas
Clathrocyclas is a genus of radiolarians in the family Theoperidae.

Ernst Haeckel (1834-1919); engravings by Adolf Giltsch (1852-1911). · Public Domain · via Wikipedia/Commons. 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
- TheopiliidaePBDB
Time the record covers
At least 34 million years on record.
The record covers at least 72.2 Mya to 37.71 Mya. No occurrence read is dated outside 83.6 Mya to 33.9 Mya.
23 occurrences of Clathrocyclas 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
23 occurrences- Late Cretaceous9%
- Paleocene61%
- Eocene30%
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
2 formations
- Mead Hill Formation9
- B Formation · Hakobuchi Group1
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The named rock units Clathrocyclas has been recovered from, largest first. Drawn where the rock is now, not where it formed. 13 occurrences have no formation on record, which is common for older literature.
Clathrocyclas and its relatives
PaleoceneWhere Clathrocyclas and its relatives were recorded in the Paleocene.
Found in the same rock
120 taxa- Amphisphaera17 sites
- Eusyringium16 sites
- Lithelius16 sites
- Amphipyndax stocki15 sites
- Archaeodictyomitra15 sites
- Cornutella californica14 sites
- Dictyomitra multicostata14 sites
- Actinomminae13 sites
- Bathropyramis13 sites
- Dictyomitra andersoni13 sites
- Lithomespilus13 sites
- Mita13 sites
- Protoxiphotractus13 sites
- Siphocampe13 sites
- Spongodiscus13 sites
- Stichomitra carnegiense13 sites
- Eucyrtidiidae12 sites
- Lithocampe12 sites
- Lithomelissa12 sites
- Lithostrobus12 sites
- Phaseliforma laxa12 sites
- Spongodiscidae12 sites
- Spongurus12 sites
- Theocapsomma12 sites
The Paleobiology Database records 23 sites for Clathrocyclas, 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
6 references- Stratigraphic, paleontological and geochemical data from Upper Cretaceous and Lower Paleocene strata in southeastern Marlborough, New Zealand13
- Site U15094
- Site U15082
- Radiolarian biostratigraphic study of the Hakobuchi Group in the Nakatonbetsu area, north Hokkaido2
- Site U15071
- Site U14071
Each of the 23 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. 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 Clathrocyclas
- Source
- Wikipedia/Commons
- Credit
- Ernst Haeckel (1834-1919); engravings by Adolf Giltsch (1852-1911).
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan of Clathrocyclas 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.
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 itTheopiliidae through timeFormations of the PaleoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Haeckel 1881