"Diatomeas fósiles Estados Unidos (Oeste)" . . "Paleobotany Miocene." . . "From 10 to 25 million years ago" . . . . "United States, West." . . "Fossile Kieselalgen USA." . . "Miozän." . . "Paleobotany West (U.S.)" . . "Actinocyclus, Fossil." . . "Actinocyclus, Fossil West (U.S.)" . . "Miocene Geologic Epoch." . . "USA" . . "Actinocyclus." . . "Seesediment." . . "Geological Survey (U.S.)," . . "Paleobotánica Estados Unidos (Oeste) Mioceno." . . "Paleobotany." . . . . . . . . . . . . . . . . . . . . . . . . "The diatom genus Actinocyclus in the western United States" . "The Diatom genus Actinocyclus in the Western United States" . "The diatom genus Actinocyclus in the Western United States" . . "Geologic ranges of lacustrine Actinocyclus species, Western United States (part. B)" . "Publications officielles" . . . . . . . . . . . . "Actinocyclus(Bacillariophyta) species from lacustrine Miocene deposits of the Western United States (part. A)" . "The diatom genus \"Actinocyclus\" in the Western United States" . . . . . "The Diatom genus Actinocyclus in the western United States" . . .