Wapkia
Wapkia is an extinct genus of sea sponge with radial sclerites, known from the Middle Cambrian Burgess Shale. It was first described in 1920 by Charles Doolittle Walcott. 32 specimens of Wapkia are known from the Greater Phyllopod bed, where they comprise 0.06% of the community. References External links with image Burgess Shale fossils Protomonaxonida Burgess Shale sponges Prehistoric sponge genera Taxa named by Charles Doolittle Walcott Fossil taxa described in 1920 Cambrian genus extinctions