RISE OF THE GRASSLAND BIOME, CENTRAL NORTH-AMERICA

[1] ANDERSON RC, 1982, GRASSES GRASSLANDS S, P297

[2] ANDERSON RY, 1969, MEM GEOL SOC AM, V113

[3] [Anonymous], 1867, COLORADO SUMMER TRIP

[4] Axelrod D. I., 1979, Arid land plant resources [Goodin, J.R.

[5] Northington, D.K. (Editors)]., P1

[6] AXELROD D I, 1976, Paleobiology, V2, P235

[7] AXELROD DI, 1977, TERRESTRIAL VEGETATI, P140

[8] AXELROD DI, 1950, PUBL CARN I WASH, V590, P217

[9] AXELROD DI, 1980, U CALIF PUBL GEOL SC, V121

[10] AXELROD DI, 1979, OCCAS PAPERS CALIF A, V132

[1] ANDERSON RC, 1982, GRASSES GRASSLANDS S, P297

[2] ANDERSON RY, 1969, MEM GEOL SOC AM, V113

[3] [Anonymous], 1867, COLORADO SUMMER TRIP

[4] Axelrod D. I., 1979, Arid land plant resources [Goodin, J.R.

[5] Northington, D.K. (Editors)]., P1

[6] AXELROD D I, 1976, Paleobiology, V2, P235

[7] AXELROD DI, 1977, TERRESTRIAL VEGETATI, P140

[8] AXELROD DI, 1950, PUBL CARN I WASH, V590, P217

[9] AXELROD DI, 1980, U CALIF PUBL GEOL SC, V121

[10] AXELROD DI, 1979, OCCAS PAPERS CALIF A, V132