Where does “Palinuroidea” come from?

Palinuroidea (Translingual) comes from Translingual Palinurus, from Ancient Greek οὐρά, from Proto-Indo-European ors- — tail.

Ancestry of “Palinuroidea”, step by step

Step	Language	Word	Meaning
1	Translingual	Palinurus	—
2	Ancient Greek	οὐρά	the tail, of a lion, dog etc; the rear-guard,...
3	Proto-Indo-European	ors-	tail

Palinuroidea — Etymology, Origin & Word History | Etymology Explorer