The  BGS holds a wide range of fossil material at Keyworth in Nottinghamshire.  The type specimen of Perapsicephalus purdoni is kept here. (updated 1998)
 

British Geological Survey Nicker Hill Keyworth Notts NG8 2AE (0115) 936 3517

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Perapsicephalus purdoni  Skull (14cm) showing natural brain cast.

Updated Jan 2001