devonian period การใช้

• Lummaton Quarry's shell deposits led to the naming of the Devonian period.
• The Devonian Period is broken into the Early, Middle and Late Devonian.
• This consists of siltstone and shale and comes from the Devonian period.
• They first evolved in the Devonian period, and soon became quite successful.
• Burray is made up of Old Red Sandstone of the Devonian period.
• The Devonian period experienced the first significant adaptive radiation of terrestrial life.
• A second, distinct mass extinction, the Hangenberg event, closed the Devonian period.
• It is assumed the proto-caribbean basin existed in the Devonian period.
• The "'Givetian "'is one of two faunal stages in the Middle Devonian period.
• The volcanic forces created igneous sills into the rocks from the Devonian Period.
• The second came 360 million or so years ago during the Devonian Period.
• During the Devonian period the local seas deepened and their oxygen levels dropped.
• The fault is most likely younger than the Jacobsville Formation and the Devonian Period.
• Paleogeographic reconstruction showing the Michigan Basin area during the Middle Devonian period . ]]
• The oldest types of tetrapod tail-and-foot prints date back to the latter Devonian period.
• During the Devonian period, vascular plants diversified and spread to many different land environments.
• The formation of the Ausable Arkona has exposed fossils from the Middle Devonian period.
• Paleogeographic reconstruction showing the Appalachian Basin area during the Middle Devonian period . ]]
• Up to long, these eurypterids are found from the Ordovician to the Devonian periods.
• This occurred around 370 million years ago ( in the Late Devonian period ).