EPHEDRA POLLEN IN SEDIMENTS OF GREAT-LAKES REGION

[1] Andersen ST, 1954, DAN GEOL UNDERS RAEK, V80, P140

[2] BENSON L, 1944, B U ARIZONA, V15, P1

[3] BENT AM, 1963, B GEOL SOC AM, V74, P491

[4] CUTLER H. C., 1939, ANN MISSOURI BOT GARD, V26, P373, DOI 10.2307/2394299

[5] Gregory PH., 1961, MICROBIOLOGY ATMOSPH, P251

[6] HARSHBERGER JW, 1911, VEGETATION ERDE, V13, P790

[7] HEVLY R. H., 1961, J ARIZONA ACAD SCI, V2, P24

[8] IVERSEN JOHS, 1954, DANMARKS GEOL UNDERSOGELSE 2 RAEKKE, V80, P87

[9] Iversen K, 1950, TEXTBOOK MODERN POLL, P168

[10] POLLEN ANALYSIS AND CENOZOIC [J]. SCIENCE, 1962, 137 (3524) : 103 - &

[1] Andersen ST, 1954, DAN GEOL UNDERS RAEK, V80, P140

[2] BENSON L, 1944, B U ARIZONA, V15, P1

[3] BENT AM, 1963, B GEOL SOC AM, V74, P491

[4] CUTLER H. C., 1939, ANN MISSOURI BOT GARD, V26, P373, DOI 10.2307/2394299

[5] Gregory PH., 1961, MICROBIOLOGY ATMOSPH, P251

[6] HARSHBERGER JW, 1911, VEGETATION ERDE, V13, P790

[7] HEVLY R. H., 1961, J ARIZONA ACAD SCI, V2, P24

[8] IVERSEN JOHS, 1954, DANMARKS GEOL UNDERSOGELSE 2 RAEKKE, V80, P87

[9] Iversen K, 1950, TEXTBOOK MODERN POLL, P168

[10] POLLEN ANALYSIS AND CENOZOIC [J]. SCIENCE, 1962, 137 (3524) : 103 - &