by Edward Oscar Ulrich
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A revision of the paleozoic Bryozoa
Cambrian bivalved crustacea of the order...
The lead, zinc, and fluorspar deposits o...
Ozarkian and Canadian cephalopods
New and little known American paleozoic ...
Paleozoic seas and barriers in eastern N...
Tertiary marine pelecypods of California...
A monograph of the cretaceous lamellibra...
Bivalvia of the Spilsby Sandstone and Sa...
Katalog originalov, khrani͡ashchikhsi͡a ...
Fossili Cassiani (Trias Medio-Superiore)
A monograph of the Eocene bivalves of En...