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Dominance of fishes and appearance of amphibians and ammonites
Answer for the clue "Dominance of fishes and appearance of amphibians and ammonites ", 8 letters:
devonian
Alternative clues for the word devonian
Word definitions for devonian in dictionaries
The Collaborative International Dictionary
Word definitions in The Collaborative International Dictionary
Devonian \De*vo"ni*an\, n. The Devonian age or formation.
Wikipedia
Word definitions in Wikipedia
Devonian is a geologic period and system of the Paleozoic Era. This may also refer to:
Douglas Harper's Etymology Dictionary
Word definitions in Douglas Harper's Etymology Dictionary
1837, as a geological era, from the English county of Devon , where the Old Red Sandstone formations of that age are prominent, + -ian .
Usage examples of devonian.
Empty platforms rushed past, their names in title: Cambrian, Ordovician, Silurian, Devonian, Permian, Triassic, Jurassic.
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 long-ago seas of the Carboniferous and Devonian swarmed with tiny plankton that wrapped themselves inside tiny protective shells.
This, as it belongs to the Upper Devonian or Lower Carboniferous, determines a lower limit for the age of the sandstone formation.
I hope the Professor, wherever he is—in the Upper Devonian or Jurassic or even the Lower Cretacious period—knows of his accidental triumph.
I hope the Professor, wherever he isin the Upper Devonian or Jurassic or even the Lower Cretacious periodknows of his accidental triumph.
Maybe there was a little temblor deep down in the Devonian, or maybe the open air had a corrosive effect on the exposed support timbers.
Amid the muddied ash and clay, the world was taking on a look it had not had since the Devonian age some four hundred million years before, when the first land plants of all&mdash.
Amid the muddied ash and clay, the world was taking on a look it had not had since the Devonian age some four hundred million years before, when the first land plants of all—.
The cliffs are early Triassic sandstone laid atop Permian coal measures, under which lie the granites, shales and limestones of Devonian and Silurian times.
It would be many months before the team was able to definitively identify the fish at Happy Fish as a coelacanth, a lobe-finned fish that first emerged in the Devonian Period of the Paleozoic Era, some 400 million years ago, and became extinct not long after the rocks of Bahariya were laid down.
From 380 to 362 million years ago, during what's now labeled the Devonian period of the Paleozoic Era, mass extinctions removed about 70 percent of life in the ocean.
They had even attempted to find coal under strata which are usually below it, such as the Devonian red sandstone, but without result.