Article: The genera Brotzenia and Voorthuysenia (Foraminifera) and Hofker's classification of the Epistomariidae

Perfectly preserved specimens of the Rotaliid species Brotzenia mosquensis Uhlig 1883 and B. para-stelligera Hofker 1954 from the Oxford Clay of England, show dental plates of the Voorthuysenia type. These species were assigned by Hofker, on the basis of the dental plates, to Brotzenia. Hofker's (1954) classification is therefore invalid. The genus Voorthuysenia is considered synonymous with Brotzenia and the latter is emended. The genera Hoglandina Brotzen 1948 and Hiltermannia Hofker 1954 are briefly discussed in relation to Hofker's classification.