Crossword clues for triassic
triassic
The Collaborative International Dictionary
Triassic \Tri*as"sic\, a. (Geol.) Of the age of, or pertaining to, the Trias. -- n. The Triassic formation.
Douglas Harper's Etymology Dictionary
1841, from German, coined 1841 by German geologist Friedrich August von Alberti (1795-1878), from Trias "period preceding the Jurassic," from Greek trias "triad, the number three" (see triad). So called because it is divisible (in Germany) into three groups.
Wikipedia
The Triassic is a geologic period and system that extends from to million years ago, an interval of 50.87 million years. It is the first period of the Mesozoic Era, and lies between the Permian and Jurassic periods. Both the start and end of the period are marked by major extinction events. The Triassic was named in 1834 by Friedrich von Alberti, after the three distinct rock layers (tri meaning "three") that are found throughout Germany and northwestern Europe— red beds, capped by marine limestone, followed by a series of terrestrial mud- and sandstones—called the "Trias".
The Triassic began in the wake of the Permian–Triassic extinction event, which left the Earth's biosphere impoverished; it would take well into the middle of the period for life to recover its former diversity. Therapsids and archosaurs were the chief terrestrial vertebrates during this time. A specialized subgroup of archosaurs, dinosaurs, first appeared in the Late Triassic but did not become dominant until the succeeding Jurassic. The first true mammals, themselves a specialized subgroup of Therapsids also evolved during this period, as well as the first flying vertebrates, the pterosaurs, who like the dinosaurs were a specialized subgroup of archosaurs. The vast supercontinent of Pangaea existed until the mid-Triassic, after which it began to gradually rift into two separate landmasses, Laurasia to the north and Gondwana to the south. The global climate during the Triassic was mostly hot and dry, with deserts spanning much of Pangaea's interior. However, the climate shifted and became more humid as Pangaea began to drift apart. The end of the period was marked by yet another major mass extinction, the Triassic-Jurassic extinction event, wiping out many groups and allowing dinosaurs to assume dominance in the Jurassic.
Usage examples of "triassic".
Triassic and Early Jurassic herrerasaurs and ceratosaurs were replaced by carnosaurian allosaurids and different small coelurosaurian theropods.
Many of the land plants in the Permian Period such as conifers, sphenopsids, ferns, and seed ferns continued into the Triassic, while other gymnosperms such as cycads, cycadeoids and ginkgos appeared for the first time.
The cycads, cycadeoids, conifers, and ginkgos formed the tropical forests in many parts of the world during the Triassic Period.
From the Triassic to the Holocene, from Pangaea through the breakup of the supercontinent into what eventually became the modern configuration of continents, he liked to find his pencils sharp and where he expected them to be.
After the Triassic Red Sandstone period, which is characterized by its scanty plant growth, a new beginning is made: the flora of the Mesophytic Era.
One of the most remarkable features of the Triassic was the widespread emergence of continents and the subsequent recession of seas from the continents, as well as the extensive spread of nonmarine deposits, composed largely of redbeds.
The nontropical nocturnal ecological niches may have been almost un-tenanted in the Triassic Period, some two hundred million years ago.
Empty platforms rushed past, their names in title: Cambrian, Ordovician, Silurian, Devonian, Permian, Triassic, Jurassic.
Some Triassic reptlles, such as protorosaurs and rhynchosaurs, were traditionally grouped with lepidosaurs.
The protorosaurs appeared in the Late Permian, and were very successful during the Triassic Period, being recorded from all continents except South America.
I know that there are others where the reptilia of the Triassic and Jurassic Ages of the outer crust reign in undisputed possession because no other creature dare enter their domain.
One of the first beasts that greets you--not, in fact, a dinosaur--is Teleosaurus, a gigantic crocodilian of the late Triassic, sprawling in the shallow water of the lake.
Traversodonts continued to survive nearly to the end of the Triassic, with the tritylodonts persisting into the Middle Jurassic as the last surviving therapsids.
Malformed specimens of Crinoids are known from the Triassic and Jurassic deposits.
These pterosaurs evolved from reptiles that had learned to glide during the Triassic.