Chesapecten — Chesapecten
Chesapecten Nonenmac at English Wikipedia Later versions were uploaded by Iain at en.wikipedia ., Wikimedia Commons, Public domain (US)

Bivalve

Chesapecten

Chesapeake scallop

Chesapecten is the large Miocene–Pliocene scallop of Chesapeake Bay and the Carolinas, up to 20 cm across, and Virginia's state fossil (C. jeffersonius). Whole valves from Calvert Cliffs, the Yorktown beds and Lee Creek are common and cheap; matched pairs with barnacles are attractive. It is a good index fossil for the Chesapeake Group.

PhylumMollusca
ClassBivalvia
OrderPectinida
FamilyPectinidae
GroupBivalve
Rank (PBDB)genus· Paleobiology Database
AuthorWard and Blackwelder 1975· Paleobiology Database
Classification (PBDB)Mollusca › Bivalvia › Pectinida › Pectinidae· Paleobiology Database
Range (PBDB)23–0.01 Ma· Paleobiology Database
PBDB occurrences160· Paleobiology Database

Elsewhere

Cite this article

Stratum Study. "Chesapecten" (Taxon). Stratum Study pack 2026.09, as of 2026-09-19. https://stratum.black/study/taxa/chesapecten. Accessed 2026-09-20.

@misc{stratum-chesapecten,
  title        = {Chesapecten},
  author       = {{Stratum Study}},
  howpublished = {\url{https://stratum.black/study/taxa/chesapecten}},
  year         = {2026},
  note         = {Taxon article, Stratum Study pack 2026.09, as of 2026-09-19; sources: stratum, pbdb, wikidata, commons. Accessed 2026-09-20.}
}

Citations carry the pack version and the article's as-of date so they resolve to the same text later. The facts themselves belong to the sources listed below; cite those for the science.