Devonian


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De·vo·ni·an

 (dĭ-vō′nē-ən)
adj.
Of, relating to, or being the period of geologic time from about 416 to 359 million years ago, the fourth period of the Paleozoic Era. The Devonian Period is characterized by the development of lobe-finned fishes, the appearance of amphibians and insects, and the first forests. See Table at geologic time.
n.
The Devonian Period.

[After Devon, a county of southwest England.]

Devonian

(dəˈvəʊnɪən)
adj
1. (Geological Science) of, denoting, or formed in the fourth period of the Palaeozoic era, between the Silurian and Carboniferous periods, lasting 60-70 million years during which amphibians first appeared
2. (Placename) of or relating to Devon
n
(Geological Science) the Devonian the Devonian period or rock system

De•vo•ni•an

(dəˈvoʊ ni ən)

adj.
1. noting or pertaining to a period of the Paleozoic Era, 405 million to 345 million years ago, characterized by the dominance of fishes and the advent of amphibians and ammonites.
2. of or pertaining to Devonshire, England.
n.
3. the Devonian Period or System.
[1605–15; < Medieval Latin Devoni(a) Devon + -an1]

De·vo·ni·an

(dĭ-vō′nē-ən)
The fourth period of the Paleozoic Era, from about 408 to 360 million years ago, characterized by the appearance of forests, amphibians, and insects. See Chart at geologic time.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.Devonian - from 405 million to 345 million years agoDevonian - from 405 million to 345 million years ago; preponderance of fishes and appearance of amphibians and ammonites
Paleozoic, Paleozoic era - from 544 million to about 230 million years ago
Translations
devon

Devonian

[deˈvəʊnɪən] ADJ (Geol) → devónico
References in classic literature ?
The main points of interest consist, first in some highly fossiliferous strata, belonging to the Devonian or Carboniferous period; secondly, in proofs of a late small rise of the land; and lastly, in a solitary and superficial patch of yellowish limestone or travertin, which contains numerous impressions of leaves of trees, together with land-shells, not now existing.
I need give only one instance, namely, the manner in which the fossils of the Devonian system, when this system was first discovered, were at once recognised by palaeontologists as intermediate in character between those of the overlying carboniferous, and underlying Silurian system.
The European periphery of the Uralian Ocean (southern part of the vast Paleoasiatic Ocean) in the Silurian and Devonian was likely a centre of origin and distribution for many groups of benthic organisms.
The company holds a number of licences in the mngovi region in southern Mongolia, which contains important gold and copper resources including the underexplored Devonian copper belt.
The Devonian (Emsian) Campbellton Formation, exposed along the Restigouche River--Chaleur Bay shoreline in northern New Brunswick, Canada, has been the focus of numerous studies since the late 1800s.
Some of the Upper Silurian and all of the Devonian are missing in Syria.
Unusual Central Nevada Geologic Terranes Produced by Late Devonian Antler Orogeny and Alamo Impact
In the 1930s, Kenneth Caster investigated mysterious trackways in the Devonian of Pennsylvania.
International Geoscience Programme project that began in 2011, said that the Late Devonian mass extinction was one of the five largest mass extinction events in the history of life.
2012), with the exception of Devonian Waeringoscorpio Stnrmer, 1970 which may have been secondarily aquatic (Kuhl et al.
Although Earth has experienced five major mass extinction events, the environmental crash during the Late Devonian was unlike any other in the planet's history.
Devonian change; case studies in palaegeography and palaeoecology.