trigonotarbid means Any a group of extinct arachnids (order Trigonotarbida) of the late Silurian and early Permian periods, resembling spiders but without silk-producing spinnerets. Lexicurio rates it Rare gem — a strength score of 82 out of 100.
noun
- Any a group of extinct arachnids (order Trigonotarbida) of the late Silurian and early Permian periods, resembling spiders but without silk-producing spinnerets.“Around 70 different species of trigonotarbids have been recognised, mostly from the Carboniferous period, but some representatives are even older than the Rhynie Chert, pushing the origins of spider-like land animals back into the Silurian Period.”