Facetotecta—Unsolved Riddle of Marine Biology

摘要

The review is devoted to research history and to the morphological description of the infraclass Facetotecta Grygier, 1985—the mysterious group of marine organisms. Its naupliar instars are characterized by headshield ornamentation made of cuticular plates of various sizes. The name of these crustaceans originates from the carapace sculpture. Facetotectan life cycle is incompletely studied, since only larval stages are described.