Diversity of Pityostrobus andraei (Pinaceae) from the Belgian Wealden : morphometry and phylogeny. ; Diversité de Pityostrobus andraei (Pinaceae) du Wealdien belge : morphométrie et phylogénie.

In the Lower Cretaceous (145.0-100.5 Ma), important floristic changes take place. They are notably marked by a peak of diversity in conifers and more precisely in the Pinaceae family. This expansion is particularly clear among the numerous female cone fossils that are found mainly in Western Europe and North America. Exceptional deposits in the Belgian Wealden facieses (125.0 – 100.5 Ma, La Louvière, Houdeng-Aimeries), have delivered hundreds of exceptionally well preserved cones. The most represented species, Pityostrobus andraei has been studied following a traditional morphometric and geome... Mehr ...