Editing Cretaceous (section)

==== Europe ====
{{see also|:Category:Cretaceous System of Europe}}
In northwestern Europe, chalk deposits from the Upper Cretaceous are characteristic for the [[Chalk Group]], which forms the [[white cliffs of Dover]] on the south coast of [[England]] and similar cliffs on the [[France|French]] [[Normandy|Normandian]] coast. The [[group (stratigraphy)|group]] is found in England, northern France, the [[low countries]], northern [[Germany]], [[Denmark]] and in the subsurface of the southern part of the [[North Sea]]. Chalk is not easily [[Consolidation (soil)|consolidated]] and the Chalk Group still consists of loose sediments in many places. The group also has other [[limestone]]s and [[arenite]]s. Among the fossils it contains are [[sea urchin]]s, [[belemnite]]s, [[ammonite]]s and sea reptiles such as ''[[Mosasaurus]]''.

In southern Europe, the Cretaceous is usually a marine system consisting of [[Competence (geology)|competent]] limestone beds or incompetent [[marl]]s. Because the [[Alpine orogeny|Alpine mountain chains]] did not yet exist in the Cretaceous, these deposits formed on the southern edge of the European [[continental shelf]], at the margin of the [[Tethys Ocean]].