Briardia
No picture of Briardia was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Briardia, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- HydrobiidaePBDB
- Life habit
- epifaunalPBDB, for Gastropoda
- Motility
- actively mobilePBDB, for Gastropoda
- Vision
- limitedPBDB, for Gastropoda
- Environment
- brackish,freshwaterPBDB, for Hydrobiidae
Time the record covers
At most 4.4 million years on record.
Every occurrence read is dated to somewhere between 66 Mya and 61.66 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
2 occurrences of Briardia on record, most of them in the Paleocene. 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- Paleocene100%
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 Briardia has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Briardia and its relatives
PaleoceneWhere Briardia and its relatives were recorded in the Paleocene.
Found in the same rock
340 taxa- Acar2 sites
- Amaurellina2 sites
- Ampullina2 sites
- Angaria2 sites
- Arca2 sites
- Barbatia2 sites
- Boutillieria2 sites
- Brachidontes2 sites
- Calliomphalus2 sites
- Campanile2 sites
- Cerithiella2 sites
- Cerithiopsis2 sites
- Chama2 sites
- Chilodonta2 sites
- Clava (Semivertagus)2 sites
- Clava (Striovertagus)2 sites
- Clavagella2 sites
- Clavilithes (Cosmolithes)2 sites
- Columbarium2 sites
- Crassatella2 sites
- Diodora2 sites
- Emarginula2 sites
- Euspira2 sites
- Fusimitra2 sites
The Paleobiology Database records 2 sites for Briardia, 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
2 references- La faune danienne de Vigny (Val-d’Oise, France): importance pour l’étude de la diversification des mollusques au début du Tertiaire1
- Revision des Gastropoda du Danien et du Montien de la Belgique. I, Les Gastropoda du Calcaire de Mons1
Each 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. 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 content0
No picture of Briardia was found. Wikipedia, Wikidata and iDigBio were searched and had none.
Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Briardia, or no answer at all. This entry cannot say which.
No 3D scan of Briardia 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 itHydrobiidae through timeFormations of the PaleoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Munier-Chalmas 1884