Isoarca circularis
Yale Peabody Museum · CC0 · via GBIF. 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
- IsoarcaPBDB
- Diet
- deposit feederPBDB, for Nuculanoidea
- Life habit
- infaunalPBDB, for Nuculanoidea
- Motility
- facultatively mobilePBDB, for Nuculanoidea
- Vision
- blindPBDB, for Bivalvia
Time the record covers
At least 66 million years on record.
The record covers at least 215.38 Mya to 149.2 Mya. No occurrence read is dated outside 227.3 Mya to 145.06 Mya.
5 occurrences of Isoarca circularis on record, most of them in the Late Triassic. 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
5 occurrencesThese 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.
Isoarca circularis and its relatives
Late TriassicWhere Isoarca circularis and its relatives were recorded in the Late Triassic.
Found in the same rock
112 taxa- Coelostylina3 sites
- Amusium2 sites
- Arcomya2 sites
- Bourguetia deshayesea2 sites
- Cercomya2 sites
- Chlamys2 sites
- Chondrocoenia reptans2 sites
- Corbula2 sites
- Ctenostreon2 sites
- Diademopsis2 sites
- Dicroloma2 sites
- Entolium2 sites
- Gervillia2 sites
- Harpax2 sites
- Hiatella breoni2 sites
- Isocrinus2 sites
- Liostrea2 sites
- Lyonsia2 sites
- Modiolus2 sites
- Ostrea (Alectryonia)2 sites
- Perna infraliasica2 sites
- Phasianella2 sites
- Pholadomya2 sites
- Pinna2 sites
The Paleobiology Database records 5 sites for Isoarca circularis, 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
4 references- Etude géologique et paléontologique des environs de St-Ambroix (Gard). Première partie (Houiller, Trias, Infralias)2
- Zur Stratigraphie und Palaeontologie der Tendaguruschichten1
- De stratigraphie van Nederlandsch Oost-Indie. 19. Mesozoikum1
- Géologie et paléontologie des couches à Avicula contorta en Lombardie1
Each of the 5 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 Isoarca circularis
- Source
- GBIF
- Credit
- Yale Peabody Museum
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Isoarca circularis 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 itIsoarca through timeFormations of the Late TriassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Stoppani 1857)