. . . . . "The Cynthia Falls Sandstone is a geologic formation in Alaska. It preserves fossils dating back to the Jurassic period."@en . . "The Cynthia Falls Sandstone is a geologic formation in Alaska. It preserves fossils dating back to the Jurassic period."@en . . "1096194046"^^ . . . . . . . . . . . "Cynthia Falls Sandstone"@en . . . "43268121"^^ . . . . . . . . "1193"^^ . . . "Cynthia Falls Sandstone"@en .