Today I learned that some trilobites had spines and eyestalks! And lived in Tupperware.
@janellecshane Maybe scuttly is more accurate, but then we've never seen them move! It's a low to the ground style of movement of some sort. All the spines on that one made me imagine it had a bit more zoom to it, whereas before this I suppose I imagined them trundling along like woodlice.