Stereoconus
Searched as Stereoconus circulus. The Paleobiology Database treats Stereoconus as the accepted name.

Yale Peabody Museum · CC0 · via GBIF. 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
- ColeodontidaePBDB
- Diet
- carnivorePBDB, for Conodonta
- Life habit
- nektonicPBDB, for Conodonta
- Motility
- actively mobilePBDB, for Conodonta
- Vision
- well-developedPBDB, for Conodonta
Time the record covers
At most 8.7 million years on record.
The one occurrence read is dated to somewhere between 458.2 Mya and 449.5 Mya, which is a dating window rather than a span.
1 occurrence of Stereoconus on record, most of them in the Ordovician. 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
1 occurrences- Ordovician100%
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
1 formation
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The named rock units Stereoconus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Stereoconus and its relatives
OrdovicianWhere Stereoconus and its relatives were recorded in the Ordovician.
Found in the same rock
173 taxa- Oulodus13 sites
- Erismodus12 sites
- Phragmodus11 sites
- Panderodus9 sites
- Acanthodistacodus7 sites
- Drepanoistodus suberectus7 sites
- Polyplacognathus7 sites
- Rostricellula6 sites
- Bryantodina5 sites
- Chirognathus5 sites
- Periodon5 sites
- Primitia5 sites
- Prionoidus sp.5 sites
- Quadrilobella5 sites
- Scandodus5 sites
- Trichonodella5 sites
- Acanthodistacodus victrix4 sites
- Ambalodus4 sites
- Amorphognathus4 sites
- Chirognathus duodactylus4 sites
- Coelochilina4 sites
- Drepanodus4 sites
- Egorovella4 sites
- Mimella4 sites
The Paleobiology Database records 28 sites for Stereoconus, 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
1 referenceEach of the 1 occurrence 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 content1

Picture of Stereoconus
- Source
- GBIF
- Credit
- Yale Peabody Museum
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Stereoconus 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 itColeodontidae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Branson and Mehl 1933