Pycnodus bowerbanki

This species is Pycnodont is only known from one specimen – the right splenial of the lower jaw – in the collections of the Natural History Museum, London.

Distinguishing Characteristics:

Multiple rows to crushing teeth which are rounded and elongated (1)
Each tooth features a flattened surface with rounded edges (2)
Marginal teeth reduce in size and become more rounded in shape. The second column of teeth remains elongated and about 75% of the size of the largest teeth (this differs from P.toliapicus which reduces in size quicker with the second column being about 50% of the largest teeth) (3)

Primary Example: Holotype NHMUK PV OR 38824

3D Scan: Holotype NHMUK PV OR 38824

3D scans undertaken by Tom Sermon with permission. From the collections of the Natural History Museum, London

References

Casier, E. (1966) Fauna ichthyologique du London Clay. British Museum Natural History London, 1966, 1-496
Monsch, K (2005) Revision of the scombroid fishes from the Cenozoic of England
Raynor, Mitchell, Clouter (2009) London Clay Fossils of Kent and Essex