Genus Knoxina Coryell & Rogatz, 1932

Preliminary remark

Adamczak (2006) revised the family Geisinidae and considered that Knoxina Coryell & Rogatz, 1932 and Chesterella Croneis & Gutke, 1939 are synonyms, the latter being junior synonym of the former. Thus, both have typical Geisinidae outline, deep adductorial sulcus, prominent costa along ventral margin and one or two longitudinal costae. He also considered Knoxina as an “unclear [genus] to be investigated in details” (Adamczak 2006: 294–295). As this revision is out of the scope of the present contribution and material, we choose to keep the genus Knoxina in Geisinidae until its family position is thoroughly revised.

Type species

Knoxina lecta Coryell & Rogatz, 1932, by original designation.