Millipedes as big as cars

[727Sky]

Something that big would weigh...Allot ! They say there is around 4 billion tons of space dust that falls to earth every year. Back then the solar system was probably more dusty than it is today. Maybe the earth rotational speed was faster than today but whatever that was one heavy bug and I doubt it could be frisky (regardless of atmosphere) in today's world due to gravity alone..