For more than 20 years, a simple white slab sat in the main office of Biloela State High School, blending into the background. It was a relic of the nearby Callide Mine, a gift to the school by a geologist.

A rock slab displayed at Biloela State High School contains some of the most densely packed dinosaur footprints ever discovered in Australia.

A slab of rock at an Australian high school, a boulder in a parking lot, and a bookend in a private collection feature 200-million-year-old dinosaur footprints.

A trove of fossilised dinosaur footprints has been found on a slab of rock gathering dust inside an Australian school, scientists said on Wednesday.

Dozens of dinosaur footprints embedded in a boulder were found hiding in plain sight at an Australian school, according to researchers.

On Wednesday, scientists unveiled the discovery of fossilized dinosaur footprints on a rock slab that had been on display for 20 years at Biloela State High School in Queensland, Australia. The slab contains one of the strongest concentrations of dinosaur footprints ever observed in Australia,

For two decades, a big boulder sat in the corner of the main office at Bileola state high school in Queensland, Australia. Now, scientists discovered that the boulder boasts more than 60 fossilized dinosaur footprints from 47 different dinosaurs.