Cobboldites
Cobboldites is a genus of eodiscinid trilobite belonging to the family Weymouthiidae, order Agnostida. It lived during the Botomian stage, which lasted from approximately 524 to 518.5 million years ago. This faunal stage was part of the Cambrian Period.

Dwergenpaartje · CC BY-SA 3.0 · 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
- WeymouthiidaePBDB
- Diet
- detritivorePBDB, for Agnostida
- Life habit
- epifaunalPBDB, for Agnostida
- Motility
- slow-movingPBDB, for Agnostida
- Vision
- blindPBDB, for Weymouthiidae
Time the record covers
At least 7.8 million years on record.
The record covers at least 516 Mya to 508.2 Mya. No occurrence read is dated outside 521 Mya to 504.5 Mya.
5 occurrences of Cobboldites 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
5 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
3 formations
- Jbel Wawrmast Formation · Feijas internes Group3
- Kamieniec Shale Formation1
- Lower Comley Formation1
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The named rock units Cobboldites has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Cobboldites and its relatives
CambrianWhere Cobboldites and its relatives were recorded in the Cambrian.
Found in the same rock
48 taxa- Chancelloria2 sites
- Acanthomicmacca1 site
- Acanthomicmacca (Acanthomicmacca) neltneri1 site
- Amphigeisina danica1 site
- Animalia1 site
- Brachiopoda1 site
- Calcihexactina1 site
- Calodiscus lobatus1 site
- Chancelooria sp.1 site
- Coleoloides typicalis1 site
- Conitheca sp.1 site
- Contitheca1 site
- Echinodermata1 site
- Eoobolus viridis1 site
- Exilitheca1 site
- Hadimopanella apicata1 site
- Helcionelloida1 site
- Hertzina1 site
- Hyolitha1 site
- Hyolithellus1 site
- Hyolithellus micans1 site
- Hyolithes1 site
- Lapworthella1 site
- Lapworthella dentata1 site
The Paleobiology Database records 5 sites for Cobboldites, 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
4 references- Agnostida aus dem höheren Unterkambrium und der Mittelkambrium von Marokko. Teil 2: Eodiscina2
- Middle Cambrian fossils from Tizi n`Tichka, the High Atlas, Morocco. Part 1. Introduction and trilobites1
- The Lower Cambrian microfauna of Comley and Rushton, Shropshire, England1
- Jednostki litostratygraficzne kambru i gornego prekambru Gor Swietokrzyskich [Cambrian and Upper Precambrian lithostratigraphic units in the Holy Cross Mountains]1
Each of the 5 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 Cobboldites
- Source
- Wikipedia/Commons
- Credit
- Dwergenpaartje
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
No 3D scan of Cobboldites 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.
The description on this site
- Source
- Wikipedia, “Cobboldites”
- 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 itWeymouthiidae through timeFormations of the CambrianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Kobayshi 1943