page_title: Hauterivian
section_title: †Ornithischians
hierarchical_section_title: Hauterivian / Palaeontology / †Ornithischians
caption_attribution_description: Head of Psittacosaurus mongoliensis, one of the numerous species of Psittacosaur from the Early Cretaceous of Mongolia, pencil drawing
context_page_description: The Hauterivian is, in the geologic timescale, an age in the Early Cretaceous epoch or a stage in the Lower Cretaceous series. It spans the time between 132.9 ± 2 Ma and 129.4 ± 1.5 Ma. The Hauterivian is preceded by the Valanginian and succeeded by the Barremian.
caption: Psittacosaurus
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