"Mid Devonian Epoch"@en . "Mid Devonian Epoch is the second of the three epochs of the Devonian Period. It is preceded by the Early Devonian Epoch and succeeded by the Late Devonian Epoch (Geologic Time Scale 2020, figs. 2.1, 22.1; https://timescalefoundation.org/)."@en . . . "378.9"^^ . . "DM"@en . . "394.3"^^ . "Mid Devonian Epoch"@en . "stable"@en . . .