There are 2 matches

Collection Authorizer Collection name Reference
120798M. Clapham Grube Messel Pit (Senckenberg SMF collection) MP 11 - Cenozoic 2 - Germany Stritzke (1983)
138656M. Clapham Grube Messel pit (Karlsruhe collection) MP 11 - Cenozoic 2 - Germany Lutz (1986)

Do another search