00562nam a22001217a 4500008004100000040005500041080002100096245023700117260004200354300001000396650001200406700002200418230525b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  a56.0(082.2) bL0  aTrace fossils: b/ Proceedings of an International Conference held at Liverpool University, 6, 7, 8 January 1970 under the auspisces of the Liverpool Geological Society ans sponsored by the International Union of Geological Sciences  aLiverpool: bSeel House Press, c1970  a547p.  aScience  aCrimes, T P (Ed.)