page_title: Asselian
section_title: Cartilaginous fishes
hierarchical_section_title: Asselian / Asselian life / Cartilaginous fishes
caption_attribution_description: Orthacanthus seckenbergianus, pencil drawing
context_page_description: In the geologic timescale, the Asselian is the earliest geochronologic age or lowermost chronostratigraphic stage of the Permian. It is a subdivision of the Cisuralian epoch or series. The Asselian lasted between 298.9 and 295 million years ago. It was preceded by the Gzhelian and followed by the Sakmarian.
caption: Orthacanthus
exif: {}