An 8-feet long scorpion

There was only a claw. It was dead for nearly 390 millions d’années. But this little creepie-crawlie was probably much more than 2-meter long. Anyway, it was only one of the most impressive guys arthropods of this era reaching these gigantic proportions only explainable by the fact that the harsh competition for survival did not yet include the more recent groups like reptiles or mammifers.

Source: ScienceBlog.