by Merton Yarwood Williams
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Arisaig-Antigonish district, Nova Scotia
The Ordovician rocks of Lake Timiskaming
An euryterid horizon in the Niagara form...
Geology of southern Alberta and southwes...
The Silurian geology and faunas of Ontar...
Crustacea
Ceratiocaridae from the upper Devonian M...
The Eurypterida of New York
Pennsylvanian invertebrates of the Mazon...
Eurypterids of the Devonian Holland Quar...
The Mazon Creek eurypterid