Brongniartella
Searched as Brongniartella inexpectata. The Paleobiology Database treats Brongniartella as the accepted name.
Brongniartella is an extinct genus of homalonotid trilobite. It is of interest as it is a potential ancestor to the homalonotid trilobites Trimerus and Platycoryphe.

Unknown author Unknown author · CC BY 4.0 · 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
- HomalonotinaePBDB
- Diet
- carnivorePBDB, for Trilobita
- Life habit
- low-level epifaunalPBDB, for Trilobita
- Motility
- fast-movingPBDB, for Trilobita
- Vision
- well-developedPBDB, for Homalonotidae
- Environment
- marinePBDB, for Trilobita
Time the record covers
At most 4.9 million years on record.
Every occurrence read is dated to somewhere between 450.1 Mya and 445.2 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
2 occurrences of Brongniartella 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
2 occurrences- Ordovician100%
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
1 formation
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The named rock units Brongniartella has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Brongniartella and its relatives
OrdovicianWhere Brongniartella and its relatives were recorded in the Ordovician.
Found in the same rock
439 taxa- Broeggerolithus16 sites
- Dalmanella16 sites
- Paracraniops16 sites
- Tallinnella16 sites
- Leptaena15 sites
- Sowerbyella15 sites
- Bicuspina14 sites
- Howellites14 sites
- Flexicalymene13 sites
- Mucronaspis (Songxites) mucronatus13 sites
- Onniella12 sites
- Broeggerolithus broeggeri11 sites
- Tentaculites11 sites
- Kjaerina10 sites
- Rostricellula10 sites
- Colaptomena expansa prolata9 sites
- Crinoidea9 sites
- Modiolopsis9 sites
- Mucronaspis9 sites
- Reuschella horderleyensis9 sites
- Dinorthis berwynensis8 sites
- Dolerorthis8 sites
- Lophospira8 sites
- Reuschella8 sites
The Paleobiology Database records 72 sites for Brongniartella, 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
1 referenceEach of the 2 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. Each entry links to the Paleobiology Database's own record for the work.
Media and terms
Media content1
Picture of Brongniartella
- Source
- Wikipedia/Commons
- Credit
- Unknown author Unknown author
- Licence
- CC BY 4.0
- Commercial use
- the licence allows it
No 3D scan of Brongniartella 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
- 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 itHomalonotinae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Reed 1918)