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Additions to the flora of the Spotted Ridge Formation in central Oregon / / by Sergius H. Mamay and Charles B. Read
Additions to the flora of the Spotted Ridge Formation in central Oregon / / by Sergius H. Mamay and Charles B. Read
Autore Mamay Sergius H. <1920->
Pubbl/distr/stampa Washington : , : United States Department of the Interior, Geological Survey, , 1956
Descrizione fisica 1 online resource (22 unnumbered pages, 4 unnumbered pages of plates) : illustrations
Collana Geological Survey professional paper
Shorter contribution to general geology
Soggetto topico Paleobotany - Oregon, Central
Paleobotany - Pennsylvanian
Formations (Geology) - Oregon, Central
Paleobotany
Pennsylvanian Geologic Period
Formato Materiale a stampa
Livello bibliografico Monografia
Lingua di pubblicazione eng
Record Nr. UNINA-9910706217703321
Mamay Sergius H. <1920->  
Washington : , : United States Department of the Interior, Geological Survey, , 1956
Materiale a stampa
Lo trovi qui: Univ. Federico II
Opac: Controlla la disponibilità qui
Occurrence and significance of marine animal remains in American coal balls / / by Sergius H. Mamay and Ellis L. Yochelson
Occurrence and significance of marine animal remains in American coal balls / / by Sergius H. Mamay and Ellis L. Yochelson
Autore Mamay Sergius H. <1920->
Pubbl/distr/stampa Washington : , : United States Department of the Interior, Geological Survey, , 1962
Descrizione fisica 1 online resource (36 unnumbered pages, 9 unnumbered pages of plates) : illustrations, map
Collana Geological Survey professional paper
Shorter contributions to general geology
Soggetto topico Paleontology - Illinois
Paleontology - Iowa
Paleontology - Kansas
Paleontology - Oklahoma
Coal balls
Plant spores, Fossil
Formato Materiale a stampa
Livello bibliografico Monografia
Lingua di pubblicazione eng
Record Nr. UNINA-9910706561403321
Mamay Sergius H. <1920->  
Washington : , : United States Department of the Interior, Geological Survey, , 1962
Materiale a stampa
Lo trovi qui: Univ. Federico II
Opac: Controlla la disponibilità qui
Paleozoic origin of the cycads / / by Sergius H. Mamay
Paleozoic origin of the cycads / / by Sergius H. Mamay
Autore Mamay Sergius H. <1920->
Pubbl/distr/stampa Washington : , : United States Department of the Interior, Geological Survey, , 1976
Descrizione fisica 1 online resource (iii, 48 pages, 5 unnumbered pages of plates) : illustrations
Collana Geological Survey professional paper
Soggetto topico Cycads, Fossil
Paleobotany - Paleozoic
Paleobotany - West (U.S.)
Paleobotany
Paleozoic Geologic Period
Formato Materiale a stampa
Livello bibliografico Monografia
Lingua di pubblicazione eng
Record Nr. UNINA-9910706837103321
Mamay Sergius H. <1920->  
Washington : , : United States Department of the Interior, Geological Survey, , 1976
Materiale a stampa
Lo trovi qui: Univ. Federico II
Opac: Controlla la disponibilità qui
Tinsleya, a new genus of seed-bearing callipterid plants from the Permian of north-central Texas / / by Sergius H. Mamay
Tinsleya, a new genus of seed-bearing callipterid plants from the Permian of north-central Texas / / by Sergius H. Mamay
Autore Mamay Sergius H. <1920->
Pubbl/distr/stampa Washington : , : United States Department of the Interior, Geological Survey, , 1966
Descrizione fisica 1 online resource (iii, E15 pages, 3 pages of plates) : illustrations
Collana Geological Survey professional paper
Contributions to paleontology
Soggetto topico Paleobotany - Permian
Paleobotany - Texas - Baylor County
Plants, Fossil
Paleobotany
Permian Geologic Period
Formato Materiale a stampa
Livello bibliografico Monografia
Lingua di pubblicazione eng
Record Nr. UNINA-9910705730103321
Mamay Sergius H. <1920->  
Washington : , : United States Department of the Interior, Geological Survey, , 1966
Materiale a stampa
Lo trovi qui: Univ. Federico II
Opac: Controlla la disponibilità qui
Two new plant genera of Pennsylvanian age from Kansas coal balls / / by Sergius H. Mamay
Two new plant genera of Pennsylvanian age from Kansas coal balls / / by Sergius H. Mamay
Autore Mamay Sergius H. <1920->
Pubbl/distr/stampa Washington : , : United States Department of the Interior, Geological Survey, , 1954
Descrizione fisica 1 online resource (19 unnumbered pages, 3 unnumbered pages of plates) : illustrations
Collana Geological Survey professional paper
Shorter contributions to general geology
Soggetto topico Paleobotany - Pennsylvanian
Paleobotany - Kansas
Plant spores, Fossil
Seeds, Fossil
Coal balls - Kansas
Paleobotany
Pennsylvanian Geologic Period
Formato Materiale a stampa
Livello bibliografico Monografia
Lingua di pubblicazione eng
Record Nr. UNINA-9910706271203321
Mamay Sergius H. <1920->  
Washington : , : United States Department of the Interior, Geological Survey, , 1954
Materiale a stampa
Lo trovi qui: Univ. Federico II
Opac: Controlla la disponibilità qui