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Date: 2011-02-14 13:35:02 Paleozoology Transitional fossils Phyla Sphenacodontidae Dimetrodon Sphenacodontia Cryptovenator Secodontosaurus Sphenacodontoidea Sphenacodonts Pelycosaurs Paleozoic		Untitled Add to Reading List Source URL: app.pan.pl Download Document from Source Website File Size: 367,33 KB Share Document on Facebook

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