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Date: 2006-05-08 10:01:44 Phanerozoic Eurypterid Megalograptus Mixopterus Pterygotidae Erettopterus Stylonuroidea Ctenopterus Chelicerata Eurypterida Geologic time scale Paleozoic		Untitled Add to Reading List Source URL: app.pan.pl Download Document from Source Website File Size: 548,10 KB Share Document on Facebook