[lxe]

This certainly led me on a Wikipedia rabbithole into extinct arthopods. My favorite used to be Anomalocaris (anomalous shrimp), until I discovered https://en.wikipedia.org/wiki/Innovatiocaris, the "Innovation Crab"

[narag]

I just see a reference to some "problematicus" species in the article, I wonder what it did to earn that troublemaker rap :)