Is woodlice a vertabrate

Yes, woodlice are terrestrial isopods (crustaceans). Other crustaceans include crabs, lobsters, and shrimp - marine organisms. Woodlice are crustaceans even though they are not marine organisms because they share the common feature of a chitinous exoskeleton. The exoskeleton is what is used for structure, protection, and support, so they do not need a spinal column.