1. Subgenus Productus (Branxtonia) Booker, 1929 † accepted as Wyndhamia Booker, 1929 † (unaccepted > junior subjective synonym)
   1. Species Productus (Branxtonia) typica Booker, 1929 † accepted as Wyndhamia typica Booker, 1929 † (unaccepted > superseded combination)
2. Species Productus amazonicus Katzer, 1903 † accepted as Buxtonioides amazonicus (Katzer, 1903) † (unaccepted > superseded combination)
3. Species Productus bellus Etheridge, 1918 † accepted as Cancrinella bella (Etheridge, 1918) † accepted as Coolkilella bella (Etheridge, 1918) † (unaccepted > superseded combination)
4. Species Productus brachythaera Morris, 1845 † accepted as Terrakea brachythaera (Morris, 1845) † (unaccepted > superseded combination)
5. Species Productus clarkei Etheridge Snr, 1872 † accepted as Pseudostrophalosia clarkei (Etheridge Snr, 1872) † (unaccepted > superseded combination)
6. Species Productus elongata Etheridge & Dun, 1909 † accepted as Terrakea elongata (Etheridge & Dun, 1909) † (unaccepted > superseded combination)
7. Species Productus hemisphaeroidalis Netschajew, 1894 † accepted as Terrakea hemisphaeroidalis (Netschajew, 1894) † (unaccepted > superseded combination)
8. Species Productus subquadratus Morris, 1845 † accepted as Taeniothaerus subquadratus (Morris, 1845) † (unaccepted > superseded combination)
9. Species Productus tenuistriatus de Verneuil, 1845 † accepted as Linoproductus tenuistriatus (de Verneuil, 1845) † (unaccepted > superseded combination)
10. Species Productus umariensis Reed, 1928 † accepted as Globiella umariensis (Reed, 1928) † (unaccepted > superseded combination)

 The webpage text is licensed under a Creative Commons Attribution 4.0 License