Furca is characterized by a broad head shield with three pairs of prominent spines: front (anterolateral), side (mediolateral) and rear (posterolateral).

The outline of the head shield possess a fringe of small, gently curving secondary spines, between 1.5–7 mm (0.059–0.276 in) long.

However, comparisons to other marrellomorphs and living arthropods such as horseshoe crabs suggest a benthic marine lifestyle: dwelling on the sea floor.

The first specimens were discovered by Joachim Barrande, who named them Furca bohemica (Latin for "Bohemian fork") but did not formally publish descriptions.

Phylogenetic analyses have recovered it as distinct marrelid taxon not closely related to Furca bohemica, and thus probably should be placed in a separate genus.