An 8.2-millimeter fossil millipede was discovered in Burmese amber. Having used new-age 3D X-ray microscopy, a research team confirmed this is the first fossil millipede of the entire order. The new species, despite having lived alongside the Cretaceous megafauna, is smaller than any of the extant members of its group. Because of its extraordinary morphology, it is described as a new suborder.