Some Silurian Rocks
Clinch Quartzite - "quartzite" (well-cemented quartzose
sandstone) with Skolithos burrows from the Lower Silurian at Clinch
Mountain, Tennessee, USA.
Lockport Dolomite
Left:
fossiliferous dolostone with Dictyonema dendroid graptolite from the
upper Middle Silurian in the Hamilton area, Ontario, Canada.
Right:
fossiliferous dolostone with Graftonoceras coiled nautiloid cephalopod
from the Middle Silurian at Coldwater, Ohio, USA.
Lockport Dolomite
Left:
fossiliferous dolostone with Sthenarocalymene celebra trilobite from the
Cedarville Dolomite (upper Lockport Dolomite Group, upper Niagaran Series/upper
Wenlockian Series, upper Middle Silurian) in southwestern Ohio, USA.
Center & Right: fossiliferous argillaceous dolostones with
carbonized Medusaegraptus mirabilis fossil green algae from the Goat
Island Formation (Lockport Dolomite Group, ~lower Ludlovian Series, lower Upper
Silurian) at Lafarge Gasport Quarry, New York State, USA.
Tymochtee Dolomite - mudcracked dolostone (left) & fossiliferous
dolostone with ostracod valves (right) (lower Ludlovian, lower Upper Silurian)
from Latham Limestone Quarry, Ohio, USA.
F1 Salt Bed, Salina Group - halite crystal from rock salt/halitite
(~mid-Cayugan Series, ~mid-Upper Silurian) at Fairport Mine, Ohio, USA.
Fiddlers Green Formation, Bertie Dolomite Group - fossiliferous dolostones with Eurypterus remipes
fossil sea scorpions from the Upper Silurian at Allan Lang Quarry, New York
State, USA.