"Pinnipedia, Fossil." . . "From 2 to 25 million years ago" . . . "Otarioid seals of the Neogene" . "Otarioid seals of the Neogene"@en . . "Classification, historical zoogeography, and temporal correlation of sea lions and walruses from North Pole region." . . . . . "Otarioid seals of the Neogene : classification, historical zoogeography, and temporal correlation of the sea lions and walruses from the North Pacific region" . "Otarioid seals of the Neogene : classification, historical zoogeography, and temporal correlation of the sea lions and walruses from the North Pacific region"@en . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "Paleontology Tertiary." . . "Paleontología Pacífico Norte Neógeno." . . "Pacific Northwest." . . "Mamíferos fósiles." . . "Geological Survey (U.S.)," . . "Paleontology Northwest, Pacific." . . "Pinnipedia." . . "Paleontology." . . . . "Tertiary Geologic Period." . . "Mamíferos marinos." . . "From 2 to 65 million years ago" . .