Brachymetopus

via iDigBio · CC0 · 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
- BrachymetopinaePBDB
- Diet
- deposit feederPBDB, for Proetida
- Life habit
- low-level epifaunalPBDB, for Trilobita
- Motility
- fast-movingPBDB, for Trilobita
- Vision
- well-developedPBDB, for Brachymetopidae
- Environment
- marinePBDB, for Trilobita
Time the record covers
At least 104 million years on record.
The record covers at least 358.86 Mya to 254.14 Mya. No occurrence read is dated outside 372.15 Mya to 251.902 Mya.
77 occurrences of Brachymetopus on record, most of them in the Carboniferous. 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
77 occurrences- Devonian14%
- Carboniferous78%
- Permian8%
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
34 formations
- Malchi Creek Formation · Rockhampton Group4
- Yonghsien Formation4
- Borden Formation3
- Milldale Limestone Formation3
- Erdbach Limestone Formation3
- Pilton Shales Formation3
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The named rock units Brachymetopus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 10 further formations hold fewer occurrences each and are not listed. 20 occurrences have no formation on record, which is common for older literature.
Brachymetopus and its relatives
CarboniferousWhere Brachymetopus and its relatives were recorded in the Carboniferous.
Found in the same rock
600 taxa- Brachiopoda13 sites
- Crinoidea11 sites
- Schuchertella11 sites
- Bryozoa9 sites
- Fenestella9 sites
- Chonetes8 sites
- Kirkbya8 sites
- Leptagonia analoga8 sites
- Penniretepora8 sites
- Aulacella7 sites
- Avonia7 sites
- Cladochonus7 sites
- Crurithyris urei7 sites
- Cyrtina7 sites
- Ostracoda7 sites
- Punctospirifer7 sites
- Ambocoelia6 sites
- Atrythyris6 sites
- Aulacella interlineata6 sites
- Hollinella6 sites
- Omegops6 sites
- Phillipsia gemmulifera6 sites
- Pseudowaribole (Pseudowaribole) quaesita6 sites
- Rhabdomeson6 sites
The Paleobiology Database records 61 sites for Brachymetopus, 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- Oekologie und Fazies des juengsten Ober-Devon von Velbert (Rheinisches Schiefergebirge)7
- New data on Carboniferous (Dinantian) trilobites from the Peak District, Derbyshire, England6
- Die Trilobiten des belgischen Kohlenkalkes (Unter-Karbon). 2. Brachymetopus.6
- Subspecies kluges: a pointless taxonomic database to create species opinions for subspecies that then will be over-ruled and allow subspecies occurrences to be recognized as the subspecies rather than the parent species5
- A review of the Carboniferous and Permian trilobites of Australia5
- Trilobite fauna at the Devonian-Carboniferous boundary in South China (S-Guizhou and N-Guangxi)5
- Neue Trilobitenfunde aus dem hohen Ober-Karbon (Gshelium) der Karawanken, Slowenien [New trilobites from the uppermost Carboniferous (Gshelian) of the Karavanke Mountains, Slovenia]4
- Aulacopleuridae and Brachymetopidae (Trilobita) from the Lower Carboniferous of eastern Australia (II) Brachymetopus (Brachymetopus) and Australosutura3
- The Carboniferous Trilobites of Britain3
- Trilobiten aus dem Unter-Carbon der S-Vogesen [Lower Carboniferous trilobites from the Southern Vosges, France]3
- Trilobites from the Lower Mississippian (Tournaisian) Madison Group of Montana2
- Die Trilobiten des belgischen Kohlenkalkes (Unter-Karbon). 8. Mahaiella, Paladin und Witryides2
Each of the 77 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 content1

Picture of Brachymetopus
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Brachymetopus 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 itBrachymetopinae through timeFormations of the CarboniferousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. M'Coy 1847