by Charles D. Walcott
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Cambrian Geology and Paleontology
Cambrian geology and paleontology
Second contribution to the studies on th...
On the Cambrian faunas of North America
Cambrian trilobites
Pre-Cambrian Igneous Rocks of the Unkar ...
Dvustvorchatye listonogie permi i triasa...
Stratigrafii͡a︡ i fillopody i͡u︡ry i mel...
Exceptionally preserved conchostracans a...
Ostracodes et phyllopodes du système du ...
Conchostraken (Crustacea, Phyllopoda) un...
Crustacean branchiopod distribution and ...