Triassic

Definitions

  • WordNet 3.6
    • adj Triassic of or relating to or denoting the first period of the Mesozoic era
    • n Triassic from 230 million to 190 million years ago; dinosaurs, marine reptiles; volcanic activity
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Webster's Revised Unabridged Dictionary
    • a Triassic (Geol) Of the age of, or pertaining to, the Trias.
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Century Dictionary and Cyclopedia
    • n Triassic In geology, the lower of the three great divisions of the entire system of fossiliferous rocks (Triassic, Jurassic, Cretaceous) which together make up the Mesozoic or Secondary series. The Triassic lies above the Permian, and beneath the Jurassic. The threefold subdivision from which the Triassic derives its name is best seen in central Europe, and especially in northern Germany, where the bunter-sandstein, muschlkalk, and Keuper (see those words) are well-marked features of the geology. In the Alps, especially toward the eastern end of the range, the Triassic is developed to very great thickness and in great complexity of subgroups, each characterized by its own peculiar assemblage of fossils. This complexity is specially characteristic of the upper portion of the series. In England the line separating the Triassic from the Permian is much less distinctly marked than it is on the Continent. What was formerly called the “New Red Sandstone” is now divided, in accordance with paleontological and not lithological characters, into Permian and Triassic. In the United States the Triassic plays an important part, but varies greatly in character in different parts of the country. The sandstones of the Connecticut river valley and the continuation of the same formation to the south, through Pennsylvania and Virginia into North Carolina, constitute a very marked feature of the geology of the Atlantic belt of States, containing various fossil plants resembling those found in Europe on the same horizon, and especially characterized by tracks of vertebrates, while remains of their bony skeletons are extremely rare. The Triassic of the Rocky Mountain region is also an important formation (see Red beds, under red); and that of the western region of the Great Basin, of the Sierra Nevada, and of the ranges further north near the coast is also extremely interesting, resembling very closely in the character of its fossils the Triassic of the eastern Alps. The most striking feature of the flora of the Triassic is the predominance of the cycads, hence the period of deposition of this division of the series has sometimes been called the “age of cycads.” The earliest remains of mammalian life are found in the Triassic, in the form of small marsupials. In the Alpine Triassic, both in the Alps and on the western coast of North America, there is a most remarkable commingling of Paleozoic and Mesozoic types of cephalopods.
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Usage

In literature:

Its first section, the Triassic period, is at first a mere continuation of the Permian.
"The Story of Evolution" by Joseph McCabe
On these lands of the Triassic time the air-breathing life made very rapid advances.
"Young Folks' Library, Volume XI (of 20)" by Various
Lilang System - Triassic.
"The Birth-Time of the World and Other Scientific Essays" by J. (John) Joly
There is no difficulty in the fact that the earliest remains of definite mammals in the Triassic precede the first-known bird in the Jurassic.
"The Outline of Science, Vol. 1 (of 4)" by J. Arthur Thomson
Coal formed in the Triassic Period is found in a basin near Richmond, Virginia.
"Earth and Sky Every Child Should Know" by Julia Ellen Rogers
The extreme south-east of the county includes part of the Triassic outlier of Kingscourt.
"Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 5" by Various
Below it, Triassic beds are exposed from Lisburn to Island Magee, giving sections of red sands and marls.
"Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 2" by Various
That it is really triassic may be deduced from the following considerations.
"A Manual of Elementary Geology" by Charles Lyell
It is further agreed that the Triassic strata were deposited after these.
"Essays Upon Some Controverted Questions" by Thomas H. Huxley
The Triassic rocks rest unconformably on all older formations within the county.
"Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 8" by Various
Both the Upper Old Red and Triassic sandstones have been largely quarried for building purposes.
"Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3" by Various
In the Triassic occur the first mammalia with conical, round, reptilian teeth.
"Degeneracy" by Eugene S. Talbot
The picturesque headland of Schie we found to be a huge triassic rock of the same general formation as that indicated along Eureka Sound.
"My Attainment of the Pole" by Frederick A. Cook
It's very nice triassic, though; coal, and all sorts of lovely things, as I remember it.
"The Whirligig of Time" by Wayland Wells Williams
The Triassic fossils are still more closely allied, more than a third of the species being identical.
"Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 4" by Various
In the Triassic strata, however, we first meet with the remains of undoubted mammals.
"The Cambridge Natural History, Vol X., Mammalia" by Frank Evers Beddard
In the region south of Lakhon the rock is Triassic, and gold has been found in several districts.
"Encyclopaedia Britannica, 11th Edition, Volume 14, Slice 4" by Various
These Triassic rocks, which are chiefly sandstones, hold no marine fossils, and hence were not laid in open arms of the sea.
"The Elements of Geology" by William Harmon Norton
See also the article TRIASSIC SYSTEM.
"Encyclopaedia Britannica, 11th Edition, Volume 15, Slice 7" by Various
Glacial, Triassic, etc., referring to geological uses.
"The Magazine Style-Code" by Leigh H. Irvine
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In news:

Wade McCollum, Shelley Thomas, Lindsay Nicole Chambers, Claire Neumann and Brandon Ezpinoza in 'Triassic Parq: The Musical.
PHOENIX — Call it Triassic Park.
Bonner, Hannah When Dinos Dawned, Mammals Got Munched, and Pterosaurs Took Flight: A Cartoon Prehistory of Life in the Triassic Gr.
Two hundred million years ago, at the end of the Triassic period, a mass extinction, often attributed to major volcanic activity, wiped out half of all marine life on Earth.
Early Triassic 's Stifling Heat Made Earth Hostile to Life, Scientists Say.
Time travel to the Triassic with a Hotel ZaZa package.
New Mexico Museum of Natural History and Science preparator Larry Rinehart examines the bone structure of the erythrosuchian, the large model of the animal that will greet visitors in the museum's new Triassic Hall exhibit.
Triassic Parq — The Musical, which just opened at the SoHo Playhouse, sticks to an approach familiar to anyone who's ever attended the New York International Fringe Festival.
"For 150 years, people have been suggesting that there should be Middle Triassic dinosaurs , but all the evidence is ambiguous," he said.
After winning the 2010 Fringe Festival Award for Best Musical, Triassic Parq The Musical is unearthed for an Off-Broadway run, which officially opened June 27 after previews that began June 12 at the Soho Playhouse.
Early Triassic's Stifling Heat Made Earth Hostile to Life, Scientists Say.
The very first year I started teaching, back in the middle Triassic, I had the startling good fortune to stumble across one of the most talented writers with whom I've ever worked.
A restoration of of Triassic weirdo Vancleavea.
Those are the "Dinosaurs Unearthed " — 24 animatronic prehistoric creatures, five full-sized skeletons and nearly 40 fossil replicas and eggs from the Triassic, Jurassic and Cretaceous periods.
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In science:

The first giant dinosaurs: a large sauropod from the Late Triassic of Thailand.
Aspects of the history, anatomy, taxonomy and palaeobiology of sauropod dinosaurs
Thus, the “Big Five” extinctions occurred at the ends of the Ordivician, Devonian, Permian, Triassic, and Cretaceous epochs, and it is estimated that each of them killed at least 70% of all existing species [184].
Biological Evolution and Statistical Physics
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