Synonyms for individual words can be found below.
«several»
«millions»
«years»
Sentences with «several millions of years»
- That is because on a timescale of several millions of years continents and oceans may not move much, but plate tectonics can still have rather large climatic impacts. (bitsofscience.org)
- The Great Blue Hole was formed sometime during one of the ice ages that covered the North American continent several millions of years ago. (backpackersbelize.com)
- They include fossilized fish that span several strata (each of wich are purported to be «several millions of years old.» (religion.blogs.cnn.com)
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sentences)