 Lingham-Soliar (1998) also assigned BMNH R9804, a partial dentary with poorly preserved teeth (one out of which is almost complete) from the late Campanian of the Nkporo Formation near Calabar in southern Nigeria, to "P. walkeri".The Nigerian specimen BMNH R9804 was reassigned to its own species by Longrich (2016) due to lacking many of the derived features that otherwise characterize "P. walkeri", such as not being as elongated or having as large of a tooth battery.The Calabar dentary also lack the extreme lateral protrusion and subcircular section of the dentary and the strong transverse expansion of the dental thecae, both of which are present in BMNH R14153.