共 4 条
[1]
Uber einige stratigraphische Grund begriffe. Schwindewolf,O. H. . 1954
[2]
Evolution and Extinction Rate Controls. Boucot,A. J. . 1975
[3]
The significance of eeostratigraphy and need for biostrattgraphic hierarchy in stratigraphic nomenctature. Waterhouse,J. B. . 1976
[4]
The significance of eeostratigraphy and need for biostrattgraphic hierarchy in stratigraphic nomenctature. Waterhouse,J. B. . 1976