00973cam a2200277 p 45000010008000000030008000080050017000160080041000330100017000740150011000910200027001020400027001290500017001560820013001731000042001862450067002282600066002953000049003614900059004105000051004695040051005206500025005716500027005966500015006238300057006381725392BD-DhUL20141114092843.0750523s1975 ne a b 001 0 eng  a 73085219  aNe75-8 a0444411828 :cfl114.40 aDLCcDLCdDLCdBD-DhUL00aQE796b.B67500a560bBOE1 aBoucot, A. J.q(Arthur James),d1924-10aEvolution and extinction rate controls /cby Arthur J. Boucot. aAmsterdam ;aNew York :bElsevier Scientific Pub. Co.,c1975. axv, 427 p., 4 fold. leaves :bill. ;c25 cm.1 aDevelopments in palaeontology and stratigraphy ;vv. 1 a"IUGS, IGCP, Unesco project: Ecostratigraphy." aIncludes bibliographical references and index. 0aBrachiopoda, Fossil. 0aInvertebrates, Fossil. 0aEvolution. 0aDevelopments in palaeontology and stratigraphy ;v1.