Lesueurilla
Searched as Lesueurilla marginalis marginalis. The Paleobiology Database treats Lesueurilla as the accepted name.

Wahl · CC BY-NC 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
- LesueurillinaePBDB
- Diet
- suspension feederPBDB
- Life habit
- epifaunalPBDB
- Motility
- stationaryPBDB
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At most 3.4 million years on record.
Every occurrence read is dated to somewhere between 461.4 Mya and 458 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
4 occurrences of Lesueurilla 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
4 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
2 formations
Loading coastlines…
The named rock units Lesueurilla has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Lesueurilla and its relatives
OrdovicianWhere Lesueurilla and its relatives were recorded in the Ordovician.
Found in the same rock
706 taxa- Lophospira perangulata14 sites
- Clathrospira subconica11 sites
- Holopea ampla11 sites
- Eunema helicteres10 sites
- Hormotoma gracilis10 sites
- Lophospira serrulata10 sites
- Lophospira ventricosa10 sites
- Tetranota wisconsinensis10 sites
- Lytospira undulatus9 sites
- Maclurina bigsbyi9 sites
- Ophiletina sublaxa9 sites
- Paraliospira supracingulata9 sites
- Peruniscus pusillus9 sites
- Salpingostoma buelli9 sites
- Colpocoryphe8 sites
- Eunema centralis8 sites
- Fusispira spicula8 sites
- Helicotoma planulata8 sites
- Holopea concinnula8 sites
- Holopea insignis8 sites
- Holopea rotunda8 sites
- Lophospira decursa8 sites
- Loxobucania emmonsi8 sites
- Maclurites depressus8 sites
The Paleobiology Database records 63 sites for Lesueurilla, 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 4 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 Lesueurilla
- Source
- GBIF
- Credit
- Wahl
- Licence
- CC BY-NC 4.0
- Commercial use
- the licence does not allow it
No 3D scan of Lesueurilla 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.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itLesueurillinae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Koken 1898)