Eocene fishes from Nigeria. Bulletin of the Geological Survey of Nigeria, 10: 1–82, 20 fig., pl. 1–18.
Notes on African Tertiary sharks. Bulletin of the Geological Survey of Nigeria, 5 (3): 319–325, pl. 1–2
Climate cooling and clade competition likely drove the decline of lamniform sharks. Proceedings of the National Academy of Sciences of the United States of America, 116 (41) 20584-20590