Linuparus eocenicus was a spiny lobster, an armoured bottom-dweller related to modern long-antennaed rock lobsters. Rather than relying on huge crushing claws, spiny lobsters use a tough carapace, spines and long sensory antennae while searching the seabed for food.

It was probably an omnivorous predator and scavenger taking molluscs, worms, small crustaceans and carrion. In the London Clay sea it would have represented a different large-crustacean lifestyle from the clawed lobsters living alongside it.