Definitions
from The Century Dictionary.
- In geology, prior to the glacial or boulder-drift period.
from the GNU version of the Collaborative International Dictionary of English.
- adjective (Geol.) Prior to the glacial or drift period.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective Before an
ice age (usually referring to thePliocene )
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
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Examples
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As a result of their isolation, most of the native plant species on the Azores are living fossils, phylogenetically primitive, and related to, though divergent from, the preglacial flora of Europe.
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Like other isolated islands, the Azores have functioned as a natural evolutionary laboratory - most of the native plant species are living fossils, phylogenetically primitive, and related to, though divergent from, the preglacial flora of Europe.
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The ridges of Ecoregion 70f are forested while its floodplains and broad, clay-filled, flat-bottomed, preglacial valleys are used for general farms.
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The Darby Plains ecoregion once had a distinct assemblage of mixed oak forest; many prairies occurred on its end moraines, gravel-filled preglacial valleys, and seasonally wet areas.
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The Mad River Interlobate Area ecoregion is flanked by end moraines and received concentrated outwash deposits that filled preglacial valleys.
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This appears to be the preglacial mouth of the Huron River.
Old Woman Creek National Estuarine Research Reserve, Ohio 2007
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Efficient organic carbon burial sustained over tens of millions of years, required by the high carbon isotopic compositions of preglacial carbonate, may lead to the buildup of enormous quantities of methane, presumably in hydrate reservoirs.
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Subspecies are assumed to classify geographically distinctive groups that are derived from preglacial branchings that became isolated in different glacial refugia.
Trout and Salmon of North America Robert J. Behnke 2002
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Atlantic salmon are similar to Pacific salmon in that they left no glacial or preglacial “relict” populations outside of the range of sea-run populations.
Trout and Salmon of North America Robert J. Behnke 2002
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It was via this Atlantic Ocean route that, in preglacial times, the ancestor of the subspecies oquassa probably reached North America.
Trout and Salmon of North America Robert J. Behnke 2002
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