Belongs within: Plagiacanthoidea. The riddle of the sieve Published 29 April 2024 In the cosmos of radiolarian systematics, few names loom larger than that of Ernst Heinrich Philipp August Haeckel. Haeckel named somewhere in the area of 5000 species of Radiolaria, many of them in his monumental review of specimens collected during the Challenger expedition (Haeckel… Continue reading Dimelissidae