Anisodonta

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
- SportellidaePBDB
- Diet
- suspension feederPBDB, for Sportellidae
- Life habit
- infaunalPBDB, for Sportellidae
- Motility
- facultatively mobilePBDB, for Sportellidae
- Vision
- blindPBDB, for Bivalvia
Time the record covers
At least 47 million years on record.
The record covers at least 48.07 Mya to 129 ka. No occurrence read is dated outside 56 Mya to 11.7 ka.
16 occurrences of Anisodonta on record, most of them in the Pleistocene. 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
16 occurrences- Eocene31%
- Miocene25%
- Pliocene6%
- Pleistocene38%
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
10 formations
- Toshima Sand Formation · Toyohashi Group3
- Caloosahatchee Formation2
- Breda Formation2
- La Meseta Formation2
- London Clay Formation1
- Selsey Formation · Bracklesham Group1
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The named rock units Anisodonta has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.
Anisodonta and its relatives
PleistoceneWhere Anisodonta and its relatives were recorded in the Pleistocene.
Found in the same rock
1,267 taxa- Odostomia7 sites
- Strioterebrum7 sites
- Erycina5 sites
- Euspira5 sites
- Nassarius (Hinia)5 sites
- Solecurtus5 sites
- Syrnola5 sites
- Anachis (Costoanachis)4 sites
- Anomia4 sites
- Antalis4 sites
- Arcopagia4 sites
- Asthenotoma4 sites
- Cardita4 sites
- Cirsotrema4 sites
- Dosinia (Dosinella)4 sites
- Fulvia mutica4 sites
- Inquisitor4 sites
- Limopsis4 sites
- Mitrella4 sites
- Panopea4 sites
- Rapana4 sites
- Retusa (Cylichnina)4 sites
- Solen4 sites
- Typhis (Typhis) pungens4 sites
The Paleobiology Database records 15 sites for Anisodonta, 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
10 references- Molluscan Systematics and Biostratigraphy3
- Summary of the geology and paleontology of the Atsumi Peninsula, Aichi Prefecture, Japan3
- The mollusc fauna of the Stemerdink Bed (Miocene, Reinbekian) from outcrops in the Slinge brook at Winterswijk-Brinkheurne (The Netherlands, province of Gelderland)2
- Pliocene Mollusca of Southern Florida2
- Paleontology of the Upper Eocene to Quaternary Post Impact Section in the USGS-NASA Langley Core, Hampton Virginia1
- Computer-based mollusc stratigraphy - a case study from the Eggenburgian (Lower Miocene) type region (NE Austria)1
- Die Fauna des marinen Miozäns von Kevelaer (Niederrhein). Band 2 Bivalvia, Scaphopoda, Cephalopoda, Bryozoa, Annelida, Brachiopoda1
- Distribution of Mollusca in Units S1 to S9 of the Selsey Formation (middle Lutetian), Selsey Peninsula, West Sussex1
- Molluscs from the Tilehurst Member (London Clay Formation, Early Eocene) at Crondall and Up Nately (Hampshire)1
- Pleistocene molluscan fauna of the Sakishima Formation, Shima Peninsula, central Japan1
Each of the 16 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 Anisodonta
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Anisodonta 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 itSportellidae through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Deshayes 1858