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MARINE LIFE IN THE CAMBRIAN PERIOD
1 and 8, Jellyfishes ; 2, Hyolithes (swimming snail) ; 3, Hymenocaris ; 4, Protospongia ; 5, Lampshells (Obolella) ; 6, Orthoceras ; 7, Trilobite (Paradoxides) — see fossil on page 12 ; 9, Coral (Archffiocyathus) ; 10, Bryograptus ; 11, Trilobite (Olenellus) ; 12, Palesterina
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