Ostrea equestris

Ostrea equestris, commonly known as the crested oyster or horse oyster, is a species of bivalve mollusc in the family Ostreidae. It can be found along the Atlantic coast of North and South America, ranging from Virginia to Patagonia.

Ostrea equestris

FWC Fish and Wildlife Research Institute · CC BY 2.0 · 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
OstreaPBDB
Diet
suspension feederPBDB, for Ostreidae
Life habit
epifaunalPBDB, for Ostreidae
Motility
stationary, attachedPBDB, for Ostreidae
Vision
blindPBDB, for Bivalvia
Environment
hypersaline,marine,brackishPBDB, for Ostreidae

Time the record covers

At least 7.2 million years on record.

The record covers at least 7.246 Mya to 11.7 ka. No occurrence read is dated outside 11.63 Mya to 0 Mya.

Miocene — about 20 of 36 occurrencesMiocenePliocene — about 0 of 36 occurrencesPleistocene — about 7 of 36 occurrencesPleistoceneHolocene — about 9 of 36 occurrences12–11 Mya — about 1 occurrence11–11 Mya — about 2 occurrences11–11 Mya — about 2 occurrences11–10 Mya — about 2 occurrences10–9.7 Mya — about 2 occurrences9.7–9.3 Mya — about 2 occurrences9.3–8.9 Mya — about 2 occurrences8.9–8.5 Mya — about 2 occurrences8.5–8.1 Mya — about 2 occurrences8.1–7.7 Mya — about 2 occurrences7.7–7.3 Mya — about 2 occurrences7.3–6.9 Mya — about 0.1 occurrences809 ka–404 ka Mya — about 0.6 occurrences404 ka–0 Mya — about 15 occurrences7.246 Mya11.7 ka12.1 Mya0 Mya

36 occurrences of Ostrea equestris on record, most of them in the Miocene. 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

36 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

5 formations

Gatun — 9.29°N, 79.92°WGatun — 9.17°N, 80.00°WGatun — 9.35°N, 79.83°WFort Thompson — 27.72°N, 82.43°WFort Thompson — 26.76°N, 81.44°WChuy — 33.95°S, 58.33°WChuy — 33.88°S, 53.52°WFalmouth — 18.47°N, 77.45°WCaujarao — 11.46°N, 69.32°W

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The named rock units Ostrea equestris has been recovered from, largest first. Drawn where the rock is now, not where it formed. 11 occurrences have no formation on record, which is common for older literature.

Ostrea equestris and its relatives

Miocene

Where Ostrea equestris and its relatives were recorded in the Miocene.

Found in the same rock

536 taxa

The Paleobiology Database records 29 sites for Ostrea equestris, 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

11 references

Each of the 36 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 Ostrea equestris

Credit
FWC Fish and Wildlife Research Institute
Licence
CC BY 2.0
Commercial use
the licence allows it

No 3D scan of Ostrea equestris 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 itOstrea through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Say 1834)