Chama aculeata

Not Chama aculeata. This is Unio tumidus Philipsson, 1788, a relative.
-919270953 · CC BY 4.0 · 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
- ChamaPBDB
- Diet
- suspension feederPBDB, for Chama
- Life habit
- epifaunalPBDB, for Chama
- Motility
- stationary, attached, epibiontPBDB, for Chama
- Vision
- blindPBDB, for Bivalvia
Time the record covers
At least 12 million years on record.
The record covers at least 15.98 Mya to 3.6 Mya. No occurrence read is dated outside 20.45 Mya to 2.58 Mya.
4 occurrences of Chama aculeata on record, most of them in the Miocene. 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
4 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.
Found in
2 formations
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The named rock units Chama aculeata has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.
Chama aculeata and its relatives
MioceneWhere Chama aculeata and its relatives were recorded in the Miocene.
Found in the same rock
588 taxa- Scapharca (Scapharca) diluvii4 sites
- Varicorbula gibba4 sites
- Conilithes antidiluvianus3 sites
- Neopycnodonte navicularis3 sites
- Pitar (Pitar) rudis3 sites
- Timoclea ovata3 sites
- Turritella (Turritella) tricarinata3 sites
- Yoldia nitida3 sites
- Aequipecten opercularis2 sites
- Alvania2 sites
- Amalda glandiformis2 sites
- Anomia ephippium2 sites
- Aporrhais pespelecani2 sites
- Aporrhais uttingeriana2 sites
- Arca noae2 sites
- Architectonica2 sites
- Atilia2 sites
- Bathytoma cataphracta2 sites
- Bela2 sites
- Bolma rugosus2 sites
- Buccinulum (Euthria) corneum2 sites
- Caecum2 sites
- Calliostoma2 sites
- Calyptraea chinensis2 sites
The Paleobiology Database records 4 sites for Chama aculeata, 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- Paleobiology from Museum collections: comparing historical and novel data on Upper Miocene molluscs of the Livorno Hills1
- Lower to Middle Miocene Mollusc assemblages from the Torino Hills (NW Italy): Synthesis of new data and chronostratigraphical arrangement1
- Nuove specie di Gasteropodi del Piacenziano di rio Crevalese, Castell’Arquato (Piacenza, Italia)1
- La fauna tortoniana del T. Stirone (limite Parmense-Piacentino)1
Each of the 4 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 Unio tumidus Philipsson, 1788
- Source
- GBIF
- Credit
- -919270953
- Licence
- CC BY 4.0
- Commercial use
- the licence allows it
No 3D scan of Chama aculeata 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 itChama through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Poli 1795)