Chesapecten (Chesapecten) nefrens

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
- Chesapecten (Chesapecten)PBDB
- 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 least 2.1 million years on record.
The record covers at least 15.98 Mya to 13.82 Mya. No occurrence read is dated outside 23.04 Mya to 11.63 Mya.
34 occurrences of Chesapecten (Chesapecten) nefrens on record, most of them in the Miocene. 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
34 occurrences- Miocene100%
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
3 formations
- Choptank Formation · Chesapeake Group24
- Calvert Formation · Chesapeake Group9
- Pungo River Formation1
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The named rock units Chesapecten (Chesapecten) nefrens has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Chesapecten (Chesapecten) nefrens and its relatives
MioceneWhere Chesapecten (Chesapecten) nefrens and its relatives were recorded in the Miocene.
Found in the same rock
216 taxa- Bicorbula idonea20 sites
- Astarte thisphila19 sites
- Dosinia acetabulum19 sites
- Chesacardium laqueatum18 sites
- Concavus concavus18 sites
- Dallarca staminea17 sites
- Marvacrassatella turgidula17 sites
- Corbula inaequalis15 sites
- Ecphora15 sites
- Mercenaria15 sites
- Pitar15 sites
- Spisula (Hemimactra) subparilis15 sites
- Mariacolpus plebeia13 sites
- Euspira heros12 sites
- Isognomon maxillata12 sites
- Parvilucina crenulata12 sites
- Stewartia anodonta12 sites
- Decapoda10 sites
- Lucinoma contracta10 sites
- Semele carinata10 sites
- Turritella (Torcula) variabilis10 sites
- Mercenaria cuneata9 sites
- Calliostoma8 sites
- Crucibulum multilineatum8 sites
The Paleobiology Database records 33 sites for Chesapecten (Chesapecten) nefrens, 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
5 references- Stratigraphy, invertebrate taphonomy and depositional history of the Miocene Calvert and Choptank Formations, Atlantic Coastal Plain17
- Molluscan biostratigraphy of the Miocene Middle Atlantic Coastal Plain of North America13
- Geological and paleontological relations, with a review of earlier investigations2
- Unpublished census data from Atlantic coastal plain and circum-Caribbean Neogene assemblages and taxonomic opinions1
- Molluscan fauna of the Pungo River Formation, Lee Creek Mine, North Carolina1
Each of the 34 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 Chesapecten (Chesapecten) nefrens
- Source
- GBIF
- Credit
- Yale Peabody Museum
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Chesapecten (Chesapecten) nefrens 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 itChesapecten (Chesapecten) through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Ward and Blackwlder 1975)