The story
See New Latin bactris, Ancient Greek βάκτρον (báktron, “staff, cudgel”)
Etymology from Wiktionary, CC BY-SA 4.0.
bactritid
Today it means: Any cephalopod of the order †Bactritida of straight-shelled (orthoconic) cephalopods, that lived 410 to 230 million years age. Full definition →