Brongniartella

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.

A picture published with the record for Brongniartella.

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 least 15 million years on record.

The record covers at least 458.2 Mya to 443.1 Mya. No occurrence read is dated outside 468 Mya to 419.62 Mya.

Ordovician — about 78 of 86 occurrencesOrdovicianSilurian — about 8 of 86 occurrencesSilurianDevonian — about 0 of 86 occurrences469–467 Mya — about 0.1 occurrences467–466 Mya — about 0.3 occurrences466–464 Mya — about 0.3 occurrences464–462 Mya — about 0.3 occurrences462–461 Mya — about 0.3 occurrences461–459 Mya — about 0.3 occurrences459–457 Mya — about 13 occurrences457–456 Mya — about 14 occurrences456–454 Mya — about 8 occurrences454–452 Mya — about 1 occurrence452–451 Mya — about 2 occurrences451–449 Mya — about 12 occurrences449–447 Mya — about 2 occurrences447–445 Mya — about 2 occurrences445–444 Mya — about 15 occurrences444–442 Mya — about 8 occurrences442–440 Mya — about 2 occurrences440–439 Mya — about 0.4 occurrences439–437 Mya — about 0.4 occurrences437–435 Mya — about 0.4 occurrences435–434 Mya — about 0.4 occurrences434–432 Mya — about 0.4 occurrences432–430 Mya — about 0.4 occurrences430–429 Mya — about 0.4 occurrences429–427 Mya — about 0.4 occurrences427–425 Mya — about 0.4 occurrences425–424 Mya — about 0.4 occurrences424–422 Mya — about 0.4 occurrences422–420 Mya — about 0.4 occurrences420–419 Mya — about 0.2 occurrences458.2 Mya443.1 Mya469 Mya419 Mya

86 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

86 occurrences

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

32 formations

Cwm Rhiwarth — 53.00°N, 3.00°WCautley Mudstone — 54.37°N, 2.43°WCautley Mudstone — 54.32°N, 2.52°WWhite Head — 48.47°N, 64.32°WWhite Head — 48.52°N, 64.22°WWhite Head — 46.18°N, 59.82°WWhite Head — 49.00°N, 64.00°WNautiloidea Sandstone — 30.29°N, 36.21°EUpper Ktaoua — 30.42°N, 5.35°WUpper Ktaoua — 30.72°N, 5.60°WUpper Ktaoua — 31.08°N, 5.25°WUpper Ktaoua — 30.77°N, 5.66°WUpper Ktaoua — 30.00°N, 5.50°WAllt Ddu — 52.92°N, 3.60°WPen-y-garnedd — 53.00°N, 3.00°WGelli-Grin — 53.00°N, 4.00°WKosov — 50.00°N, 14.00°EKosov — 50.22°N, 14.53°EGelli-grîn — 52.92°N, 3.60°WZalesia — 50.77°N, 21.45°EPen-y-planeau Siltstone — 53.00°N, 3.00°WSwch Gorge Tuff — 53.00°N, 3.00°WAllt-Ddu Mudstones — 53.00°N, 4.00°WNod Glas — 53.00°N, 4.00°WCheney Longville — 52.00°N, 3.00°WSanta Gertrudis — 25.00°S, 65.00°WCapillas — 24.25°S, 65.14°WWestfield Sandstone — 42.62°S, 146.37°EDufton Shales — 54.72°N, 2.48°WHaverford Mudstone — 52.67°N, 2.00°WUlunda Mudstone — 58.00°N, 13.00°EKogsta — 63.01°N, 14.59°EKyrkås — 63.19°N, 14.73°E

Loading coastlines…

The named rock units Brongniartella has been recovered from, largest first. Drawn where the rock is now, not where it formed. 8 further formations hold fewer occurrences each and are not listed. 9 occurrences have no formation on record, which is common for older literature.

Brongniartella and its relatives

Ordovician

Where Brongniartella and its relatives were recorded in the Ordovician.

Found in the same rock

439 taxa

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

31 references

Each of the 86 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. 19 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 Brongniartella

Credit
Unknown author Unknown author
Licence
CC BY 4.0
Commercial use
the licence allows it

No 3D scan is on file for Brongniartella.

This entry was cached before the site began recording what Smithsonian Open Access, MorphoSource and Sketchfab did, so a search that failed cannot be told from one that found nothing.

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)