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By the end of the Pleistocene they about 30 genera . all became extinct in their homeland , just as horses did . Infraorder Suina The hypertragulids were a mainly Oligocene group of Lower Oligocene to present . Includes the living pigs ...
The taxonomy of Aschelminthes presents difficulties that have not been fully resolved . ... without corona ; cilia on body , particularly on ventral surface ; adhesive tubes present ; no trophi or mastax ; about 1,800 known species .
In 12000 BC , ice covered all of northern Europe as far as the present German - Polish coastline ; by 7700 BC glacial meltwater had formed the Yoldia Sea , which stretched east from the present Skagerrak across what is now lake - strewn ...
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This is the 198215th Edition, in two halves, with the Macropaedia and the Micropaedia. First published in 1768, the publisher is the oldest English-language encyclopedia still in print. Two Scottish ... Read full review