Cheilocephalus
via iDigBio · via iDigBio. 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
- CheilocephalidaePBDB
- Diet
- carnivorePBDB, for Corynexochida
- Life habit
- nektobenthicPBDB, for Corynexochida
- Motility
- actively mobilePBDB, for Corynexochida
- Vision
- well-developedPBDB, for Cheilocephalidae
- Environment
- marinePBDB, for Trilobita
Time the record covers
At least 9.3 million years on record.
The record covers at least 499.5 Mya to 490.2 Mya. No occurrence read is dated outside 506.5 Mya to 486.85 Mya.
78 occurrences of Cheilocephalus on record, most of them in the Cambrian. 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
78 occurrences- Cambrian100%
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
24 formations
- Riley Formation14
- Deadwood Formation10
- Nopah Formation5
- Collier Shale Formation5
- Corset Spring Shale Formation5
- Jones Ridge Limestone Formation4
Loading coastlines…
The named rock units Cheilocephalus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.
Cheilocephalus and its relatives
CambrianWhere Cheilocephalus and its relatives were recorded in the Cambrian.
Found in the same rock
192 taxa- Aphelaspis walcotti12 sites
- Aphelaspis haguei11 sites
- Glaphyraspis parva10 sites
- Cliffia lataegenae9 sites
- Pterocephalia sanctisabae9 sites
- Buttsia drabensis8 sites
- Glaphyraspis ornata7 sites
- Kindbladia wichitaensis7 sites
- Pseudagnostus communis7 sites
- Dellea6 sites
- Dellea suada6 sites
- Dunderbergia variagranula6 sites
- Elvinia roemeri6 sites
- Glaphyraspis6 sites
- Housia ovata6 sites
- Housia vacuna6 sites
- Irvingella major6 sites
- Dunderbergia5 sites
- Pseudokingstonia exotica5 sites
- Xenocheilos minutum5 sites
- Angulotreta triangularis4 sites
- Aphelaspis4 sites
- Aphelotoxon lumaleasa4 sites
- Blountia bristolensis4 sites
The Paleobiology Database records 78 sites for Cheilocephalus, 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
27 references- Trilobites of the Late Cambrian Pterocephaliid Biomere in the Great Basin, United States15
- The Faunas of the Riley Formation in Central Texas14
- Trilobites, Biostratigraphy, and Lithostratigraphy of the Crepicephalus and Aphelaspis zones, Lower Deadwood formation (Marjuman and Steptoean Stages, Upper Cambrian), Black Hills, South Dakota7
- Redeposited Elvinia Zone (Upper Cambrian) trilobites from the Collier Shale, Ouachita Mountains, west-central Arkansas4
- Cambrian trilobites of East-Central Alaska4
- Trilobites of the Marjuman and Steptoean stages (Upper Cambrian), Rabbitkettle Formation, southern Mackenzie Mountains, northwest Canada3
- Stratigraphy and structure, Death Valley, California3
- A Cambrian Aphelaspis fauna from Steele Butte, near Boulder, Wyoming3
- New trilobite taxa from Upper Cambrian microbial reefs in the central Appalachians2
- Trilobites from the Cedarina dakotaensis zone, lowermost part of the Deadwood Formation, (Marjuman Stage, Upper Cambrian), Black Hills South Dakota2
- Upper Cambrian Orr Formation: Its Subdivisions and Correlatives in Western Utah2
- Outer shelf communities and trophic groups in the Upper Cambrian of the Great Basin2
Each of the 78 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. 15 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 content1
Picture of Cheilocephalus
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
No 3D scan of Cheilocephalus 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 itCheilocephalidae through timeFormations of the CambrianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Berkey 1898