The Carboniferous is a geologic period and system of the Paleozoic era that spans 60 million years, from the end of the Devonian Period 358.86 Ma to the beginning of the Permian Period, 298.9 Ma. From Wikipedia
Revisiting a 150-year-old museum specimen with advanced imaging techniques reveals a toxin-armed freshwater lobopodian predating known marine relatives by 50 million years
