An ancient cockroach-like creature nearly a foot long once skittered along the seafloor in what is now Canada, a new fossil find reveals.
The fossil, a series of 500-million-year-old tracks, captured the movement of a large seafloor-dwelling creature with at least 25 pairs of legs. The animal was likely an arthropod called Tegopelte, a rare giant very rarely found fossilized. Arthropods are invertebrates with exoskeletons, a group that includes today's crustaceans and insects.
Reporting the discovery Tuesday (Nov. 8) in the journal Proceedings of the Royal Society B, researchers led by Nicholas Minter of the University of Saskatchewan in Canada suggest that Tegopelte was a fearsome predator or perhaps a quick-moving scavenger, capable of "rapidly skimming across the seafloor" with only a few of its many legs touching the ground at a time.
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