by Reuben James Ross
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The Ordovician system in most of Russian...
Stratigraphy of the Garden City formatio...
Middle and Lower Ordovician formations i...
Ordovician fossils from wells in the Wil...
The Ordovician system of the East Europe...
Brachiopod fauna of Saturday Mountain Fo...
The articulate brachiopods from the Wenl...
Evolution of the shell structure of arti...
Articulate brachiopods of the Viola Form...
Chonétacés (Brachiopodes) siluriens et...
Articulate brachiopods of the Quarry Mou...
Late Ordovician and early Silurian artic...