Sims, P. A.; Ashworth, M. P.; Theriot, E. C.; Manning, S. R. (2023). Molecular and morphological analysis of Biddulphia sensu lato: a new diagnosis of Biddulphia, with a description of the new genera Biddulphiella and Neobrightwellia. Marine Micropaleontology. 178: 102186.
Sims, P. A.; Ashworth, M. P.; Theriot, E. C.; Manning, S. R.
2023
Molecular and morphological analysis of Biddulphia sensu lato: a new diagnosis of Biddulphia, with a description of the new genera Biddulphiella and Neobrightwellia