Middle Devonian 

Increasing plant complexity

The Middle Devonian (393—383 Ma) is a fascinating time in plant evolution. During this time, plants begin to become more structurally complex, with elaborate anatomy, morphology, and increasing height. There are several groups and forms that appear on the landscape: ferns, "trees", woody vines, and possibly horsetails and proto-seed plants. The Middle Devonian occurs after the Emsian of the Early Devonian, and before the Frasnian of the Late Devonian

Above: the arrangement of continents during the Middle Devonian (~390 Ma)

Geologic Age

Subdivisions

Eon / Era / Period

What happened during this time?