Belgrandia

Belgrandia is a genus of very small aquatic snails, operculate gastropod mollusks in the family Hydrobiidae.

Belgrandia

Uncredited · 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
BelgrandiinaePBDB
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 5.4 million years on record.

Every occurrence read is dated to somewhere between 5.333 Mya and 11.7 ka, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Miocene — about 0 of 3 occurrencesPliocene — about 1 of 3 occurrencesPliocenePleistocene — about 2 of 3 occurrencesPleistoceneHolocene — about 0 of 3 occurrences5.4–5.3 Mya — about 0.0 occurrences5.3–5.1 Mya — about 0.0 occurrences5.1–4.9 Mya — about 0.0 occurrences4.9–4.7 Mya — about 0.0 occurrences4.7–4.5 Mya — about 0.0 occurrences4.5–4.3 Mya — about 0.0 occurrences4.3–4.1 Mya — about 0.0 occurrences4.1–3.9 Mya — about 0.0 occurrences3.9–3.7 Mya — about 0.0 occurrences3.7–3.5 Mya — about 0.0 occurrences3.5–3.3 Mya — about 0.0 occurrences3.3–3.1 Mya — about 0.0 occurrences3.1–2.9 Mya — about 0.0 occurrences2.9–2.7 Mya — about 0.0 occurrences2.7–2.5 Mya — about 0.1 occurrences2.5–2.3 Mya — about 0.1 occurrences2.3–2.1 Mya — about 0.1 occurrences2.1–1.9 Mya — about 0.1 occurrences1.9–1.8 Mya — about 0.1 occurrences1.8–1.6 Mya — about 0.1 occurrences1.6–1.4 Mya — about 0.1 occurrences1.4–1.2 Mya — about 0.1 occurrences1.2–972 ka Mya — about 0.1 occurrences972 ka–778 ka Mya — about 0.1 occurrences778 ka–583 ka Mya — about 0.3 occurrences583 ka–389 ka Mya — about 0.3 occurrences389 ka–194 ka Mya — about 0.3 occurrences194 ka–0 Mya — about 0.1 occurrences5.8 Mya0 Mya

3 occurrences of Belgrandia on record, most of them in the Pleistocene. The Paleobiology Database records this as a living group. 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

3 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

2 formations

Wroxham — 52.63°N, 1.30°ESanta Maria di Ciciliano — 42.65°N, 12.49°E

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The named rock units Belgrandia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Belgrandia and its relatives

Pleistocene

Where Belgrandia and its relatives were recorded in the Pleistocene.

Found in the same rock

45 taxa

The Paleobiology Database records 3 sites for Belgrandia, 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

Each of the 3 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 Belgrandia

Credit
nobody named on the record
Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record

No 3D scan of Belgrandia 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.

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 itBelgrandiinae through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Bourguignat 1870