Figure 12.20   (a) Cluster analysis of bryozoan growth forms across a shelf–slope transition, showing an inner shelf A (clastic dominated), inner shelf B (carbonate dominated), outer shelf and slope. The cluster analysis, using a distance coeffi cient (xaxis) and average group linkage, indicates the presence of four distinctive assemblages. (b) Distribution of growth forms across the onshore–offshore gradient within the assemblages identifi ed by cluster analysis. (Based on Hageman et al. 1997.)

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