Tetrasphaera Popofsky, 1912 Dataset ZooBank Rank GENUS Published in Popofsky, A. 1912. Die Sphaerellarien des Warmwassergebietes. In: Deutsche Südpolar-Expedition 1901–1903, Zoologie II. Vol. 13 (5): 73-159. Classification genus Tetrasphaera Name Homonyms Tetrasphaera Popofsky, 1912 Tetrasphaera Wang Y.J. in Wang, Cheng & Zhang, 2008