List of fossiliferous stratigraphic units in Maryland

Group or Formation Period Notes
Allegheny FormationCarboniferous
Antietam FormationCambrian
Aquia FormationPaleogene
Brightseat FormationPaleogene
Calvert FormationNeogene
Chatham Group/Gettysburg FormationTriassic
Chemung FormationDevonian
Chesapeake Group/Calvert FormationNeogene
Chesapeake/Choptank FormationNeogene
Chesapeake/St. Marys FormationNeogene
Clinton Group/Keefer SandstoneSilurian
Clinton/Rochester ShaleSilurian
Clinton/Rose Hill FormationSilurian
Conemaugh GroupCarboniferous
Dunkard Group/Greene FormationPermian
Foreknobs FormationDevonian
Greenland Gap Group/Foreknobs FormationDevonian
Jennings FormationDevonian
Aquia FormationPaleogene
Magothy FormationCretaceous
Marcellus FormationDevonian
Matawan FormationCretaceous
McKenzie FormationSilurian
Merchantville FormationCretaceous
Mifflintown FormationSilurian
Monmouth FormationCretaceous
Nanjemoy FormationPaleogene
Onondaga FormationDevonian
Pamlico Formation
Pamunkey Group/Aquia FormationPaleogene
Pamunkey/Brightseat FormationPaleogene
Pamunkey/Nanjemoy FormationPaleogene
Arundel ClayCretaceous
Patapsco FormationCretaceous
Patuxent FormationCretaceous
Rockdale Run FormationOrdovician
Romney FormationDevonian
Severn FormationCretaceous
St. Marys FormationNeogene
Stonehenge LimestoneOrdovician
Talbot Formation
Tonoloway LimestoneSilurian
Williamsport SandstoneSilurian
Wills Creek LimestoneSilurian

See also

References

  • Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 31 July 2014. Retrieved 22 June 2014.
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