Contents of volume 92, No. 1 (April 2013)
Editorial

Two rare mosasaurs from the Maastrichtian of Angola and the Netherlands


The Roman Limes in the Netherlands: how a delta landscape determined the location of the military structures


Supporting online information
Appendix 1

Supporting online information
Appendix 2

Digital Geological Model (DGM): a 3D raster model of the subsurface of the Netherlands


The Geology of the Wicken Vision Area, lower Cam valley, Cambridgeshire, UK


Probable remains of jellyfish (Cnidaria, Scyphozoa) from the lower Middle Triassic (Anisian) of Winterswijk, eastern Netherlands


The role of a proto-Schelde River in the genesis of the southwestern Netherlands, inferred from the Quaternary successions and fossils in Moriaanshoofd Borehole (Zeeland, the Netherlands)