Euryale spinosa is a fossil species of Euryale from the Miocene of Ardnamurchan, Scotland, United Kingdom.
The circular to elliptical pollen grains with a spiny exine are 30 üm wide. It bears a 3 üm wide furrow. The sharp, stout spines are 2 üm long.
It was published by John Baird Simpson in 1961 based on fossil pollen grains.
The specific epithet spinosa means spiny.
It occurred in Scotland, United Kingdom.