Adam's Late / Upper Silurian
- decatur county
- perryville
- brownsport formation
- merista tennesseensis
- merista
- athyrid
- austria
- eggenfeld
- septatrypa subsecreta
- septatrypa
- atrypid
- monograptus colonus
- wales
- powys
- builth wells
- cumbra
- ambleside
- skell gill
- monograptus tumescens
- monograptus
- bannisdale slates
- scyphocrinites elegans
- scyphocrinus
- erfoud
- scyphocrinites
- dalmanites myops
- dalmanites
- may hill
- leurocycloceras imbricatum
- leurocycloceras
- protochonetes ludloviensis
- protochonetes
- chonetid
- microsphaeridiorhynchus nucula
- microsphaeridiorhynchus
- rhynchonellid
- gloucestershire
- longhope
- hertfordhire
- aymestrey
- aymestry limestone
- kirkidium knighti
- kirkidium
- pentamerid
- bringewood beds
- gorstian
- ludlow
- pridoli
- late silurian
- upper silurian
- tennessee
- protochonetes striatellus
- spirifer
- spirifer (delthyris) elevatus
- beyrichia limestones
- orzechow
- poland
- beyrichienkalk
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