triassic

IPA: traɪˈæsɪk

Root Word: Triassic

(geology) A geologic period within the Mesozoic era, comprising lower, middle and upper epochs from about 250 to 200 million years ago.

Of or from the geologic strata above the Permian and below the Jurassic; of or belonging to the period 250 to 200 million years ago when these strata were laid down.

Examples of "triassic" in Sentences

If rock is the music of the future, give me the triassic era any day.
In the coal measures come the amphibia; and in the Permo-triassic strata, reptile-like mammals.
Then something happened at the end of the triassic and they disappeared and the dinosaurs got their chance.
The rolling country east of this contained eruptive rocksa porphyritic disbase, with zeolite, quartz, and agate of triassic age.
It is the triassic formation, or the commencement of the mesozoic epoch, which has received the smallest inheritance from preceding ages.
Let me give you an example: In 1988 I was working in the Mineralogical Museum in Delft, which also holds holotypes of indonesian triassic foraminafera.
The marbles we have been hitherto considering belong to the older calcareous formations of Italy, Greece, Asia Minor, and Egypt, and go down to the upper triassic and muschel-kalk limestones, and perhaps even to those of an older period.
Still missing a huge amount of terrestrial life, that 400 million years worth of giant dragon flies from the carboniferous, permian reptiles, mammal like reptiles from the triassic, ice age megafaunas, giant South American terror birds, and so on.
It seems to have been multiplying at an exceptional speed in recent times; how had it acquired such amazing vitality while still in a primitive triassic form, and how had it remained entirely hidden until recently, existing, most likely, in extremely isolated geographic pockets?