Fossil.

Fishes the source of petroleum Macfarlane, John Muirhead 1923 Flowering plant origin, evolution & phylogeny Winship, David 1997 Forminifera Cushman, A Joseph 1959 FOSSIL Taylor, Paul Dr D. 1990 Fossil amphibians and reptiles Swinton, W. E. 1965 Fossil Horses Author not listed Year not listed Fossil invertebrates Lehmann, Ulrich 1983 Fossil non-marine mollusca of north america Henderson, Junius 1935 Fossil non-marine Mollusca of North America Henderson, Junius 1935 Fossil vertebrates Patterson, Colin 1967 History of the Primates Clark, W. E. L. G. 1957 Ice age mammals and the emergence of man Beaumont, Peter B. 1973 Identification of modern and tertiary woods Barefoot, A. C. 1982 Invertebrate fossils Moore, Raymond C. 1952 Invertebrate palaeontology and evolution Clarkson, E. N. K. 1986 Mammalian paleofaunas of the world Savage, Donald E. 1983 Morphology of vascular plants, lower groups (Psilophytales to Filicales) Eames, Arthur Johnson 1976 Palaeozoic fishes Moy-Thomas, J. A. 1971 Palæontology, invertebrate Woods, Henry 1926 Paleopalynology Traverse, Alfred 2007