Pentagnostus brighamensis

Not Pentagnostus brighamensis. This is Pentagnostus brighamensis (Resser, 1939), a relative — both are Agnostidae.
Gunther Family · CC BY 4.0 · 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
- PentagnostusPBDB
- Diet
- suspension feederPBDB, for Agnostoidea
- Life habit
- nektonicPBDB, for Agnostoidea
- Motility
- actively mobilePBDB, for Agnostoidea
- Vision
- blindPBDB, for Peronopsidae
- Environment
- marinePBDB, for Agnostoidea
Time the record covers
At least 1.7 million years on record.
The record covers at least 509.7 Mya to 508 Mya. No occurrence read is dated outside 515.3 Mya to 504.5 Mya.
5 occurrences of Pentagnostus brighamensis 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
2 formations
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The named rock units Pentagnostus brighamensis has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Pentagnostus brighamensis and its relatives
CambrianWhere Pentagnostus brighamensis and its relatives were recorded in the Cambrian.
Found in the same rock
27 taxa- Achlysopsis brighamensis2 sites
- Elrathina2 sites
- Oryctocephalites reynoldsi2 sites
- Pentagnostus bonnerensis2 sites
- Zacanthoides2 sites
- Achlysopsis punctatum1 site
- Amecephalus idahoense1 site
- Athabaskia bithus1 site
- Bathyuriscus brighamensis1 site
- Bathyuriscus wasatchensis1 site
- Bythicheilus typicum1 site
- Chancia maladensis1 site
- Dorypyge1 site
- Glossopleura gigantea1 site
- Glossopleura punctatum1 site
- Glossopleura walcotti1 site
- Kootenia spencei1 site
- Ogygopsis typicalis1 site
- Olenoides spencei1 site
- Oryctocara geikei1 site
- Oryctocephalites1 site
- Pagetia1 site
- Pagetia aspinosa1 site
- Pagetia fossula1 site
The Paleobiology Database records 5 sites for Pentagnostus brighamensis, 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
3 references- Biostratigraphy of the Albertella and Glossopleura zones (lower Middle Cambrian) of northern Utah and southern Idaho3
- Trilobite biostratigraphy of the Cambrian 5 and Drumian stages, Series 3 (Laurentian Delamaran, Topazan, and Marjuman stages, Lincolnian Series) of the lower Emigrant Formation at Clayton Ridge, Esmeralda County, Nevada1
- Biostratigraphy of the traditional Lower-Middle Cambrian boundary interval in the outher shelf Emigrant Formation, Split Mountain East Section, Esmeralda County, Nevada1
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 Pentagnostus brighamensis (Resser, 1939)
- Source
- GBIF
- Credit
- Gunther Family
- Licence
- CC BY 4.0
- Commercial use
- the licence allows it
No 3D scan of Pentagnostus brighamensis 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 itPentagnostus through timeFormations of the CambrianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Resser 1939)