Orbiculoidea
Searched as Orbiculoidea sodalis sodalis. The Paleobiology Database treats Orbiculoidea as the accepted name.

via iDigBio · CC0 · 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
- DiscinidaePBDB
- Diet
- suspension feederPBDB, for Lingulida
- Life habit
- low-level epifaunalPBDB, for Lingulida
- Motility
- stationary, attachedPBDB, for Lingulida
- Vision
- blindPBDB, for Lingulata
- Environment
- marinePBDB, for Lophophorata
Time the record covers
At most 9.3 million years on record.
The one occurrence read is dated to somewhere between 486.4 Mya and 477.1 Mya, which is a dating window rather than a span.
1 occurrence of Orbiculoidea 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
1 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
1 formation
Loading coastlines…
The named rock units Orbiculoidea has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Orbiculoidea and its relatives
OrdovicianWhere Orbiculoidea and its relatives were recorded in the Ordovician.
Found in the same rock
1,752 taxa- Lingula62 sites
- Crinoidea52 sites
- Palaeoneilo33 sites
- Bivalvia29 sites
- Camarotoechia28 sites
- Aviculopecten27 sites
- Ammonoidea26 sites
- Entolium orbiculare26 sites
- Camptonectes25 sites
- Eomarginifera longispinus25 sites
- Nuculites25 sites
- Schuchertella25 sites
- Astarte23 sites
- Buchia mosquensis22 sites
- Isognomon22 sites
- Paraparchites22 sites
- Schizophoria22 sites
- Belemnitida20 sites
- Crurithyris20 sites
- Crurithyris urei20 sites
- Pinna20 sites
- Pleuromya20 sites
- Chonetes19 sites
- Isocyprina19 sites
The Paleobiology Database records 797 sites for Orbiculoidea, and this reads 240 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 1 occurrence 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 Orbiculoidea
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Orbiculoidea 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 itDiscinidae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (d'Orbigny 1847)