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†Sphaerexochus dimorphus Perry & Chatterton 1977
urn:lsid:organismnames.com:name:2037373
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†Sphaerexochus dimorphus Perry & Chatterton 1977
Perry & Chatterton 1977. Silurian (Wenlockian) trilobites from Baillie-Hamilton Island, Canadian Arctic Archipelago. Canadian J Earth Sci, 14(2) 1977: 285-317,illust.