Figures

Figure 14.10   Trilobite communities: overview of (a) Early Ordovician (Arenig), (b) Late Ordovician (Ashgill) and (c) Mid Silurian (Wenlock) trilobite associations in relation to water depth and sedimentary facies. (a, from Fortey, R.A. 1975. Fossils and Strata 4; b, from Price, D. 1979. Geol. J. 16; c, from Thomas, A.T. 1979. Spec. Publ. Geol. Soc. Lond. 8.)

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