Devonian period


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Devonian period

The fourth period of the Paleozoic era: 408 to 360 million years ago.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.Devonian period - from 405 million to 345 million years agoDevonian period - from 405 million to 345 million years ago; preponderance of fishes and appearance of amphibians and ammonites
Age of Fishes, Devonian
Paleozoic, Paleozoic era - from 544 million to about 230 million years ago
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References in periodicals archive ?
Until recently, scientists believed that the first trees appeared in the middle of the Devonian period, some 400 million years ago.
The First Plants Appeared 500 Million Years Ago
They date back to the Devonian Period, known for being the era in which the first land-dwelling vertebrates called tetrapods, a group of four-limbed amphibians, evolved on Earth.
World's First Trees Ripped Themselves Apart To Grow Bigger
The stones are between 354 and 417 million years old and are traced back to the Upper Devonian Period.
Time you saw this!
The oldest chondrichthyan from the Early Devonian period.
Ichnology of the Devonian (Emsian) Campbellton Formation, New Brunswick, Canada
The bones came from tropical Greenland of the Devonian Period.
X-rays identify preteen tetrapods: improved technique picks out juveniles in ancient mass burial
The basement rocks (Franklinian), as in most of northern Alaska, are composed of meta-sedimentary rocks dating to the Devonian period.
Chukchi shelf stratigraphy: core study reveals pre-Cenozoic bedrock
The UK shales were formed in the carboniferous period over 300 million years ago, while those in the US were formed over 400 million years ago in the Devonian period.
Shale reserves 'could hold 15 years supply' Fracking is set to get under way but one of the country's leading shale gas experts says the UK reserves may not be as large as the Government hopes. PETER McCUSKER reports
One exploratory well was drilled in 2015, leading to a commercial discovery with a tested flow rate of 60 barrels of oil per day over a period of 18 hours from within deposits of the Devonian period.
Urals Energy Acquires Two Russian Companies for USD 5.275m
This also casts a new light on the terrestrialization processes at the beginning of the Devonian period (Retallack 2011) and makes a new contribution to the general knowledge in this field.
A plant-root system in the Lower Devonian of the Holy Cross Mountains, Poland
Most of the fossils at this park were from creatures of the Devonian Period, which is thought to be even before the time of dinosaurs.
Make a mini DinoCase the perfect place to keep dinosaur teeth and other fossils
The research team, which includes Assistant Professor Sarah Carmichael, is examining the relationship between climate change and changes in the ecosystems in the Devonian period, from 419 to 359 million years ago.
Climate change 375 million years ago may have lead to 'catastrophic' mass extinction
Terrestrialisation was believed to have occurred early in their history, probably during the Devonian period, with allegedly aquatic Proscorpiidae coexisting with terrestrial Mesoscorpionina and 'palaeosterns' until the early Carboniferous (Jeram 1998).
The earliest record of terrestrial animals in Gondwana: a scorpion from the Famennian (Late Devonian) Witpoort Formation of South Africa

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