The Mesozoic and Cenozoic Echinodermata of the United States
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Monograph↗
Geology topics
William Bullock Clark
Publications and source records attributed to William Bullock Clark.
The Eocene deposits of the Middle Atlantic slope in Delaware, Maryland, and Virginia
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Bulletin↗
The Mesozoic Echinodermata of the United States
Explore the source record for details and available documents.
Bulletin↗