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Noun: Silurian period
Type of: geological period, period Part of: Palaeozoic [Brit, Cdn], Paleozoic, Paleozoic era Encyclopedia: Silurian period |
Nearest silly season silo siloxane Silphium Silphium laciniatum silt silt up siltstone silty Silurian Silurian period silurid silurid fish Siluridae siluriform fish Siluriformes Silurus Silurus glanis silva silvan Silvanus |