Silurian (Upper & Lower)

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Quaternary | Pennsylvanian | Mississippian (Middle) | Mississippian (Lower) | Devonian (Middle & Lower) | Silurian (Upper & Lower) | Ordovician (Middle & Lower)

Geologic Systems Silurian (Upper & Lower)
SystemDrawer #Lithic TypeCountyCounty Exp. #Cat. #HeatedExposure
Silrulian (Upper)20Stone City QuarryJonesJN-D447  
Silurian (Upper)20Stone City QuarryJonesJN-D+447+ 
Silurian (Lower)20Scotch GroveBentonBE-A480  
Silurian (Lower)20Scotch GroveBentonBE-A+480+ 
Silurian (Lower)20Scotch GroveJacksonJK-E486  
Silurian (Lower)20Scotch GroveJacksonJK-E+486+ 
Silurian (Lower)20Scotch GroveJonesJN-A196  
Silurian (Lower)20Scotch GroveJonesJN-A+196+R
Silurian (Lower)20Scotch GroveJonesJN-B290 R
Silurian (Lower)20Scotch GroveJonesJN-B+290+R
Silurian (Lower)20Scotch GroveJonesJN-G507  
Silurian (Lower)20Scotch GroveJonesJN-G+507+ 
Silurian (Lower)20Scotch GroveLinnLN-N502  
Silurian (Lower)20Scotch GroveLinnLN-N+502+ 
Silurian (Lower)20Scotch GroveLinnLN-O515  
Silurian (Lower)20Scotch GroveLinnLN-O+515+ 
Silurian (Lower)20Palasades KeplerLinnLN-D450  
Silurian (Lower)20Palasades KeplerLinnLN-D+450+ 
Silurian (Lower)20Palasades KeplerLinnLN-F494  
Silurian (Lower)20Palasades KeplerLinnLN-F+494+ 
Silurian (Lower)20Palasades KeplerLinnLN-G495  
Silurian (Lower)20Palasades KeplerLinnLN-G+495+ 
Silurian (Lower)20Buck Creek QuarryWinneshiekWH-D451  
Silurian (Lower)20Buck Creek QuarryWinneshiekWH-D +451+ 
Silurian (Lower)21HopkintonClaytonCT-B57 C
Silurian (Lower)21HopkintonClaytonCT-B+57+C
Silurian (Lower)21HopkintonClaytonCT-F66 C
Silurian (Lower)21HopkintonClaytonCT-F+66+C
Silurian (Lower)21HopkintonClaytonCT-J482  
Silurian (Lower)21HopkintonClaytonCT-J+482+ 
Silurian (Lower)21HopkintonDelawareDW-E454 C
Silurian (Lower)21HopkintonDelawareDW-E+454+C
Silurian (Lower)21HopkintonDelawareDW-G509  
Silurian (Lower)21HopkintonDelawareDW-G+509+ 
Silurian (Lower)21HopkintonDelawareDW-H510 C
Silurian (Lower)21HopkintonDelawareDW-H+510+C
Silurian (Lower)21HopkintonDubuqueDB-H289  
Silurian (Lower)21HopkintonDubuqueDB-H+289+ 
Silurian (Lower)21HopkintonDubuqueDB-I291 O
Silurian (Lower)21HopkintonDubuqueDB-I+291+O
Silurian (Lower)21HopkintonJacksonJK-B288 R
Silurian (Lower)21HopkintonJacksonJK-B+288+R
Silurian (Lower)21HopkintonJacksonJK-J491  
Silurian (Lower)21HopkintonJacksonJK-J+491+ 
Silurian (Lower)21BlandingJonesJN-C443 Q
Silurian (Lower)21BlandingJonesJN-C+443+Q
Silurian (Lower)21BlandingJonesJN-F492  
Silurian (Lower)21BlandingJonesJN-F+492+ 
Silurian (Lower)22BlandingClaytonCT-D64  
Silurian (Lower)22BlandingClaytonCT-D+64+Q
Silurian (Lower)22BlandingDelawareDW-B206 Q
Silurian (Lower)22BlandingDelawareDW-B+206+Q
Silurian (Lower)22BlandingDelawareDW-C194 C
Silurian (Lower)22BlandingDelawareDW-C+194+C
Silurian (Lower)22BlandingDelawareDW-F508  
Silurian (Lower)22BlandingDelawareDW-F+508+ 
Silurian (Lower)22BlandingDubuqueDB-A11 C
Silurian (Lower)22BlandingDubuqueDB-A+11+C
Silurian (Lower)22BlandingDubuqueDB-F119 C
Silurian (Lower)22BlandingDubuqueDB-F+119+C
Silurian (Lower)22BlandingDubuqueDB-G179  
Silurian (Lower)22BlandingDubuqueDB-G+179+ 
Silurian (Lower)22BlandingDubuqueDB-M476  
Silurian (Lower)22BlandingDubuqueDB-M+476+ 
Silurian (Lower)22BlandingFayetteFT-A249 C
Silurian (Lower)22BlandingFayetteFT-A+249+C
Silurian (Lower)22BlandingJacksonJK-C484  
Silurian (Lower)22BlandingJacksonJK-C+484+ 
Silurian (Lower)22BlandingJacksonJK-D485  
Silurian (Lower)22BlandingJacksonJK-D+485+ 
Silurian (Lower)22BlandingJacksonJK-F487  
Silurian (Lower)22BlandingJacksonJK-F+487+