Chesapecten
Searched as Chesapecten madisonius carolinensis. The Paleobiology Database treats Chesapecten as the accepted name.
Chesapecten is an extinct genus of scallop known from marine strata from the early Miocene to the early Pleistocene of the Eastern United States.

Nonenmac at English Wikipedia Later versions were uploaded by Iain at en.wikipedia . · Public Domain · via Wikipedia/Commons. 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
- PectinidaePBDB
- Diet
- suspension feederPBDB, for Pectinidae
- Life habit
- low-level epifaunalPBDB, for Pectinidae
- Motility
- facultatively mobilePBDB, for Pectinidae
- Vision
- limitedPBDB, for Pectinidae
- Environment
- marinePBDB, for Pectinida
Time the record covers
At most 2.8 million years on record.
Every occurrence read is dated to somewhere between 5.333 Mya and 2.58 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
2 occurrences of Chesapecten on record, most of them in the Pliocene. 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
2 occurrences- Pliocene100%
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
2 formations
Loading coastlines…
The named rock units Chesapecten has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Chesapecten and its relatives
PlioceneWhere Chesapecten and its relatives were recorded in the Pliocene.
Found in the same rock
1,433 taxa- Mercenaria32 sites
- Dosinia acetabulum29 sites
- Bicorbula idonea27 sites
- Parvilucina crenulata27 sites
- Stewartia anodonta27 sites
- Corbula inaequalis25 sites
- Cyclocardia granulata25 sites
- Chesacardium laqueatum22 sites
- Euspira heros22 sites
- Astarte thisphila20 sites
- Isognomon maxillata20 sites
- Concavus concavus19 sites
- Marvacrassatella turgidula19 sites
- Panopea19 sites
- Turritella plebeia plebeia19 sites
- Ecphora18 sites
- Ecphora quadricostata18 sites
- Dallarca staminea17 sites
- Mariacolpus plebeia17 sites
- Astarte16 sites
- Busycon16 sites
- Crepidula fornicata16 sites
- Lucinoma contracta16 sites
- Costaglycymeris subovata15 sites
The Paleobiology Database records 118 sites for Chesapecten, 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
1 referenceEach of the 2 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 content2
Picture of Chesapecten
- Source
- Wikipedia/Commons
- Credit
- Nonenmac at English Wikipedia Later versions were uploaded by Iain at en.wikipedia .
- Licence
- Public Domain
- Commercial use
- the licence allows it
3D model
- Source
- Sketchfab
- Credit
- Virtual Curation Lab
- Licence
- CC Attribution-NonCommercial-NoDerivs
- Commercial use
- the licence does not allow it
Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.
The description on this site
- Source
- Wikipedia, “Chesapecten”
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itPectinidae through timeFormations of the PlioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Ward and Blackwelder 1975