Choptank Formation
overlies: Calvert Formation
region: Virginia
age: Miocene
caption: Chesapecten nefrens, Choptank Formation
subject: Category:Neogene geology of Virginia
type: Geological formation
country: United States
subject: Category:Neogene Maryland
description: fossiliferous geologic formation in Virginia and Maryland, U.S
period: Neogene
region: Maryland
unitof: Chesapeake Group
hypernym: Formation
namedfor: Choptank River
name: Choptank Formation
underlies: St. Marys Formation