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19 hours ago · Permian–Triassic boundary at Frazer Beach in New South Wales, with the End Permian extinction event located just above the coal layer. Approximately 251.9 million years ago, the Permian–Triassic (P–T, P–Tr) extinction event (PTME; also known as the Late Permian extinction event, the Latest Permian extinction event, the End-Permian extinction event, and colloquially as the Great Dying ...
19 hours ago · Ichthyosauria ( / ˌɪkθiəˈsɔːriə /; Ancient Greek for "fish lizard" – Ancient Greek: ἰχθύς, romanized : ichthys, lit. 'fish' and Ancient Greek: σαῦρος, romanized : sauros, lit. 'lizard') is an order of large extinct marine reptiles sometimes referred to as "ichthyosaurs", although the term is also used for wider clades in ...
