- panthalassic
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adj. [Gr. pan, all; thalassa, sea]Living in coastal and offshore waters.
Online Dictionary of Invertebrate Zoology. A.R. Maggenti and S.L. Gardne. 2005.
panthalassic
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Ordovician Period — Interval of geologic time, 490–443 million years ago, the second oldest period of the Paleozoic Era. It follows the Cambrian and precedes the Silurian. During the Ordovician, many of the landmasses were aligned in the tropics. Life was dominated… … Universalium
Pacific Ocean — Pacific and North Pacific redirect here. For other uses, see Pacific (disambiguation) and North Pacific (disambiguation). Earth s oceans (World Ocean) Arctic Ocean Atlantic Ocean Indian Ocean Pacific Ocean Southern Ocean … Wikipedia
Panthalassa — (Greek, meaning all seas ), also known as the Panthalassic Ocean, was the vast global ocean that surrounded the supercontinent Pangaea, during the Paleozoic and the early Mesozoic eras. It included the Pacific Ocean to the west and north and the… … Wikipedia
Pannotia — Pannotia, first described by Ian W. D. Dalziel in 1997, is a hypothetical supercontinent that existed from the Pan African orogeny about 600 million years ago to the end of the Precambrian about 540 million years ago. It is also known as the… … Wikipedia
Pangaea — Pangaea, Pangæa or Pangea (IPAEng|pænˈdʒiːə [OED] , from παν, pan , meaning entire , and Γαῖα, Gaea , meaning Earth in Ancient Greek) was the supercontinent that existed during the Paleozoic and Mesozoic eras about 250 million years ago, before… … Wikipedia
Columbia River — Coordinates: 46°14′39″N 124°3′29″W / 46.24417°N 124.05806°W / 46.24417; 124.05806 … Wikipedia
Ordovician — Period 488.3–443.7 million years ago … Wikipedia
Rodinia — For the genus of metalmark butterflies, see Rodinia (butterfly).In geology, Rodinia (from the Russian родина , or motherland ) refers to one of the oldest known supercontinents, which contained most or all of Earth s then current landmass.… … Wikipedia
Hirnantian — The Hirnantian is the seventh and final internationally recognized stage of the Ordovician Period of the Paleozoic Era. It was of short duration, lasting about 1.9 million years, from 445.6 ± 1.5 to 443.7 ± 1.5 Ma (million years ago). The early… … Wikipedia
Superocean — A superocean is an ocean which surrounds a supercontinent. It is less commonly defined as any ocean larger than the current Pacific Ocean. [cite book | last = McMenamin | first = Mark A. | coauthors = Dianna L. McMenamin | title = The Emergence… … Wikipedia
