page_title: Campanian
section_title: †Theropods (non-avian)
hierarchical_section_title: Campanian / Paleontology / †Theropods (non-avian)
caption_attribution_description: Zanabazar junior (formerly Saurornithoides).
context_page_description: The Campanian is the fifth of six ages of the Late Cretaceous epoch on the geologic timescale of the International Commission on Stratigraphy. In chronostratigraphy, it is the fifth of six stages in the Upper Cretaceous series. Campanian spans the time from 83.6 to 72.1 million years ago. It is preceded by the Santonian and it is followed by the Maastrichtian.
  The Campanian was an age when a worldwide sea level rise covered many coastal areas. The morphology of some of these areas has been preserved: it is an unconformity beneath a cover of marine sedimentary rocks.
context_section_description: David J. Varrichio observes that during the late Campanian Alberta and Montana had very similar theropods despite significant differences in the types of herbivorous dinosaur faunas.
caption: Portrait of Saurornithoides
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