CYCADS : FOSSIL EVIDENCE OF LATE PALEOZOIC ORIGIN.MAMAY SH.1969; SCIENCE; USA; 1969(4), VOL. 164, NUM. 3877, P. 295 A 296Miscellaneous

SANDREWIA, N. GEN., A PROBLEMATICAL PLANT FROM THE LOWER PERMIAN OF TEXAS AND KANSAS.MAMAY SH.1975; REV. PALAEBOT. PALYNOL.; NETHERL.; 1975, VOL. 20, NUM. 0001-0002, P. 75 A 83Serial Issue

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RUSSELLITES,NEW GENUS A PROBLEMATICAL PLANT FROM THE LOWER PERMIAN OF TEXAS.MAMAY SH.1968; GEOL. SURV. U.S.A., PROF. PAPER; USA; 1968, P. 1 A 13Miscellaneous

EARLY PERMIAN PLANTS FROM THE CUTLER FORMATION IN MONUMENT VALLEY, UTAH.MAMAY SH; BREED WJ.1970; GEOL. SURV. U.S.A., PROF. PAPER; USA; 1970, P. 109 A 117Miscellaneous

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AN OVULIFEROUS CALLIPTEROID PLANT FROM THE HERMIT SHALE (LOWER PERMIAN) OF THE GRAND CANYON, ARIZONA.MAMAY SH; WATT AD.1971; GEOL. SURV. U.S.A., PROF. PAPER; USA; 1971, NUM. 0750-0051Miscellaneous

AGE OF PLANT FOSSILS FROM THE WORCESTER COAL MINE, WORCESTER, MASSACHUSETTS.GREW ES; MAMAY SH; BARGHOORN ES et al.1970; AMER. J. SCI.; USA; 1970(2), VOL. 268, NUM. 0002, P. 113 A 126Miscellaneous

LOWER DEVONIAN LAND PLANTS FROM GRAPTOLITIC SHALE IN SOUTH-EASTERN ALASKA.CHURKIN M JR; EBERLEIN GD; HUEBER FM et al.1969; PALAEONTOLOGY; GBR; 1969(12), VOL. 12, NUM. 004 , P. 559 A 573Miscellaneous