Diplodonta soror

Not Diplodonta soror. This is Diplodonta soror (C.B.Adams, 1852), a relative — both are Ungulinidae.
Chamizal Expedition · CC BY-NC 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
- DiplodontaPBDB
- Diet
- suspension feederPBDB, for Diplodonta
- Life habit
- infaunalPBDB, for Diplodonta
- Motility
- facultatively mobilePBDB, for Diplodonta
- Vision
- blindPBDB, for Bivalvia
Time the record covers
At least 3.5 million years on record.
The record covers at least 3.6 Mya to 11.7 ka. No occurrence read is dated outside 5.333 Mya to 0 Mya.
19 occurrences of Diplodonta soror 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
19 occurrences- Pliocene21%
- Pleistocene58%
- Holocene21%
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
8 formations
- Pamlico Formation5
- Mare Formation · Cabo Blanco Group3
- Waccamaw Formation3
- Michoud Formation2
- New Orleans Barrier Trend Formation1
- Duplin Formation1
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The named rock units Diplodonta soror 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.
Diplodonta soror and its relatives
PleistoceneWhere Diplodonta soror and its relatives were recorded in the Pleistocene.
Found in the same rock
650 taxa- Abra aequalis9 sites
- Angulus texanus6 sites
- Lunarca ovalis6 sites
- Mulinia lateralis6 sites
- Nassarius vibex6 sites
- Neverita duplicatus6 sites
- Raeta (Raeta) plicatella6 sites
- Tellina (Eurytellina) alternata6 sites
- Barnea truncata5 sites
- Crassostrea virginica5 sites
- Cyrtopleura costata5 sites
- Macoma tenta5 sites
- Nassarius (Nassarius) acutus5 sites
- Acteocina canaliculata4 sites
- Americardia media4 sites
- Anadara (Rasia) lienosa4 sites
- Astyris lunata4 sites
- Callocardia (Agriopoma) texasiana4 sites
- Crassinella lunulata4 sites
- Donax fossor4 sites
- Dosinia discus4 sites
- Ervilia4 sites
- Nucula (Nucula) proxima4 sites
- Nuculana concentrica4 sites
The Paleobiology Database records 10 sites for Diplodonta soror, 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- Unpublished census data from Atlantic coastal plain and circum-Caribbean Neogene assemblages and taxonomic opinions5
- Unpublished notes on Caribbean collection of Jack and Winifred Gibson-Smith, Naturhistorisches Museum Basel2
- Stratigraphy of newly exposed Quaternary sediments, eastern Orleans Parish, Louisiana2
- Stratigraphy of newly exposed Quaternary seduments, eastern Orleans Parish, Louisiana2
- Studies on the marine Pleistocene: Part II. The marine Pleistocene mollusks of eastern North America2
- Mollusca from the Miocene and Lower Pliocene of Virginia and North Carolina. Part 1. Pelecypoda2
- Late Cenozoic pelecypods from northern Venezuela1
- Pliocene Mollusca of Southern Florida1
- Two collections of Pleistocene fossils from the Isthmus of Panama1
- Post-Pleiocene Fossils of South Carolina1
Each of the 19 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 Diplodonta soror (C.B.Adams, 1852)
- Source
- GBIF
- Credit
- Chamizal Expedition
- Licence
- CC BY-NC 4.0
- Commercial use
- the licence does not allow it
No 3D scan of Diplodonta soror 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 itDiplodonta through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Adams 1852)