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Date: 2008-05-19 04:45:56Jurassic dinosaurs Trace fossils Ergs Navajo Sandstone Sauropus Otozoum Trackway Ammosaurus Dinosaur State Park and Arboretum Paleontology Extinction Sandstone | Add to Reading ListSource URL: www.app.pan.plDownload Document from Source WebsiteFile Size: 697,74 KBShare Document on Facebook |