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n.1.(Paleon.) A extinct genus of Branchiopoda, very common in Silurian limestones.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
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The fauna consists of the brachiopods Howellella, Kozlowskiellina, Meristina, Atrypa, Protozeuge, Sulcatina, Rhynchotreta, Ancillotoechia, and Lepidoleptaena; trilobites Warburgella and Encrinurus; ostracods Craspedobolbina and Beyrichia; algae Wetheredella, Rothpletzella, Spongiostroma, Hedstroemia, and Solenopora; stromatoporoids Labechia, Stelodictyon, and Ecclimadictyon; and rugose corals Rhegmaphyllum, Neocystiphyllum, Acervularia, Tryplasma, and Spongophylloides (Tsegelnjuk et al.