Ceraurinus
Ceraurinus is an extinct genus of trilobite in the order Phacopida.

James St. John · CC BY 2.0 · 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
- CheirurinaePBDB
- Diet
- carnivorePBDB, for Cheiruridae
- Life habit
- low-level epifaunalPBDB, for Trilobita
- Motility
- fast-movingPBDB, for Trilobita
- Vision
- well-developedPBDB
- Environment
- marinePBDB, for Trilobita
Time the record covers
At least 8.7 million years on record.
The record covers at least 458.2 Mya to 449.5 Mya. No occurrence read is dated outside 468 Mya to 432.9 Mya.
86 occurrences of Ceraurinus 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
86 occurrences- Ordovician97%
- Silurian3%
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
37 formations
- Whittaker Formation18
- White Head Formation7
- Mangazea Formation · Chertovskian Group7
- Grande Coupe Formation4
- Whitewater Formation3
- Zagornyi Formation3
Loading coastlines…
The named rock units Ceraurinus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 13 further formations hold fewer occurrences each and are not listed. 1 occurrence has no formation on record, which is common for older literature.
Ceraurinus and its relatives
OrdovicianWhere Ceraurinus and its relatives were recorded in the Ordovician.
Found in the same rock
848 taxa- Strophomena21 sites
- Isotelus18 sites
- Rafinesquina15 sites
- Calyptaulax14 sites
- Ceraurus14 sites
- Streptelasma13 sites
- Isotelus gigas11 sites
- Krausella11 sites
- Lepidocyclus11 sites
- Platystrophia11 sites
- Anataphrus10 sites
- Cybeloides10 sites
- Diceromyonia10 sites
- Oepikina10 sites
- Rhynchotrema10 sites
- Catenipora9 sites
- Flexicalymene (Flexicalymene) senaria9 sites
- Hiscobeccus capax9 sites
- Hypodicranotus9 sites
- Panderodus9 sites
- Sowerbyella9 sites
- Sphaerocoryphe9 sites
- Aparchitella8 sites
- Bumastus8 sites
The Paleobiology Database records 74 sites for Ceraurinus, 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
34 references- Ordovician formations and faunas, southern Mackenzie Mountains12
- Ordovician of the Tungus Basin (Siberian Platform). Field excursion guidebook9
- Ordovician Sedimentary Basin and Paleobiotas of the Gorny Altai5
- The fossil fauna of the Ordovician in the Cincinnati Region5
- Gaspé Peninsula, Percé area4
- Evenness, richness and the Cambrian-Paleozoic faunal transition in North America: an assemblage-level perspective3
- Upper Ordovician conodonts, brachiopods, and chronostratigraphy of the Whittaker Formation, southwestern District of Mackenzie, N. W. T., Canada3
- Biostratigraphy of the Middle and Late Ordovician cephalopods of the Upper Mississippi Valley area3
- Brachiopods and trilobites of the Sardeson Beds in the Twin Cities3
- A trilobite zonation of Middle Ordovician rocks, southwestern District of Mackenzie3
- Problems in the stratigraphy of the Ordovician and Silurian of Siberia3
- Palaeozoic geology of the Lake Simcoe Area, Ontario3
Each of the 86 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. 22 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 content2
Picture of Ceraurinus
- Source
- Wikipedia/Commons
- Credit
- James St. John
- Licence
- CC BY 2.0
- Commercial use
- the licence allows it
Structured light scan
- Source
- MorphoSource
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Ceraurinus icarus · KU:KUMIP:341608
The description on this site
- Source
- Wikipedia, “Ceraurinus”
- 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 itCheirurinae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Barton 1913