…years ago) of France and D. brongniarti of the Siberian Permian (299 million to 252 million years ago) deposits. The extinct family Triassomachilidae (order Archaeognatha) includes Triassomachilis uralensis of the Triassic (252 million to 201 million years ago) deposits of Russia. Other extinct species occur in the genera Machilis, Praemachilis,…
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