Words similar to million-year-old

Example sentences for: million-year-old

How can you use “million-year-old” in a sentence? Here are some example sentences to help you improve your vocabulary:

In 2000, a team of United States researchers claimed to have cultured a bacterium sealed inside a 250-million-year-old salt crystal [9].
In 1994, while Jurassic Park was still taking in millions of dollars at the box office, scientists claimed to have extracted and sequenced DNA from an 80-million-year-old dinosaur [1].
This beautifully organized museum, drawing on the most modern audiovisual techniques, is named after Joseph Tyrrell, the geologist who made the first discovery of Alberta’s 65-million-year-old dinosaurs while surveying coal seams along the Red Deer River in 1884.
[ 28 ] reported the isolation and growth of a previously unrecognized spore-forming bacterium (a Bacillus species, designated 2-9-3) from a brine inclusion within a 250 million-year-old salt crystal from the Permian Salado Formation.
The oldest rocks are 500 million-year-old slates found around the northern peak of Skiddaw, where the mountains have smooth and rounded profiles.