Hyriopsis

Hyriopsis is a genus of bivalves belonging to the family Unionidae.

Hyriopsis

via iDigBio · CC BY-NC · via iDigBio. 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
GonideinaePBDB
Diet
suspension feederPBDB, for Bivalvia
Life habit
infaunalPBDB, for Bivalvia
Motility
facultatively mobilePBDB, for Bivalvia
Vision
blindPBDB, for Bivalvia
Environment
freshwaterPBDB, for Unionida

Time the record covers

At least 30 million years on record.

The record covers at least 37.71 Mya to 7.246 Mya. No occurrence read is dated outside 41.03 Mya to 5.333 Mya.

Eocene — about 1 of 2 occurrencesEoceneOligocene — about 0 of 2 occurrencesMiocene — about 1 of 2 occurrencesMiocenePliocene — about 0 of 2 occurrences42–41 Mya — about 0.2 occurrences41–39 Mya — about 0.4 occurrences39–38 Mya — about 0.4 occurrences38–37 Mya — about 0.1 occurrences8.3–7.1 Mya — about 0.1 occurrences7.1–5.9 Mya — about 0.6 occurrences5.9–4.6 Mya — about 0.3 occurrences37.71 Mya7.246 Mya41.7 Mya4.6 Mya

2 occurrences of Hyriopsis on record, most of them in the Eocene. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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

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

Hiragishi — 43.50°N, 142.00°EJugur — 45.18°N, 25.12°E

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The named rock units Hyriopsis has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Hyriopsis and its relatives

Eocene

Where Hyriopsis and its relatives were recorded in the Eocene.

Found in the same rock

8 taxa

The Paleobiology Database records 1 site for Hyriopsis, and this reads all of them. The number is how many of those sites it was catalogued from too.

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 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 Hyriopsis

Source
iDigBio
Credit
via iDigBio
Licence
CC BY-NC
Commercial use
the licence does not allow it

No 3D scan of Hyriopsis 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 itGonideinae through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Conrad 1853