George T. Jefferson

2006 (1) 7S (Bottom) (1) Archeologia (1) BA13 (1) bedroom I 2 (1) bolsa_books_June_2016 (1) California (6) children's non-fiction (1) Datazione radiometrica (2) extinct animals (2) fossil birds (2) fossil classification (2) fossil mammals (2) Fossile (8) GALE'S (1) geographic (1) Geologia (3) grande formato (1) invertebrate fossils (2) La Brea (1) La Brea Tar Pits (2) Los Angeles (4) Miocene (1) non-fiction 560.9 Historical (1) of paleozoology (1) Paleobiologia (2) Paleontologia (5) persons treatment of paleontology (1) Pictorial Guidebook (1) Pleistocene (2) Pliocene (1) Preistoria (1) Saggistica (3) Scienza (4) Storia naturale (3) tar pits (1) tarpits (1) Treasures of the Tar Pits (1) U.S. History (1) WS1.7 (1)