Fig. 7 in Xenoxylon synecology and palaeoclimatic implications for the Mesozoic of Eurasia

Fig. 7. Diversity index (DI = GD/N, where GD is the number of genera associated with Xenoxylon, and N the number of occurrences) for each time period. Abbreviations: LT, Late Triassic; EMJ, Early to Middle Jurassic; LJEK, Late Jurassic to Early Cretaceous; LK, Late Cretaceous.