page_title: Olenekian
section_title: †Ichthyosauriforms
hierarchical_section_title: Olenekian / Olenekian life / †Ichthyosauromorphs / †Ichthyosauriforms
caption_attribution_description: English: Sclerocormus parviceps
context_page_description: In the geologic timescale, the Olenekian is an age in the Early Triassic epoch; in chronostratigraphy, it is a stage in the Lower Triassic series. It spans the time between 251.2 Ma and 247.2 Ma. The Olenekian is sometimes divided into the Smithian and the Spathian subages or substages. The Olenekian follows the Induan and is followed by the Anisian.
  The Olenekian saw the deposition of a large part of the Buntsandstein in Europe. The Olenekian is roughly coeval with the regional Yongningzhenian stage used in China.
caption: Sclerocormus
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