CURRENT TRENDS IN PALEOBOTANY

[121] SEED FROM UPPER DEVONIAN [J]. SCIENCE, 1967, 156 (3783) : 1727 - &

[122] PETTITT JM, 1964, B BRIT MUSEUM, V10, P83

[123] PLUMBSTEAD E, 1962, FOSSIL FLORAS ANTARC, V9, P1

[124] PLUMSTEAD EDNA P., 1952, TRANS AND PROC GEOL SOC S AFRICA, V55, P281

[125] Plumstead EP, 1967, PALEONT AFRICA, V10, P1

[126] PRAKASH U, 1960, J PALEONTOL, V34, P1027

[127] Prakash U., 1961, J ARNOLD ARBOR, V42, P347, DOI [DOI 10.5962/P.324676, 10.5962/p.324676]

[128] RAMANUJAM CGK, 1960, PALEOBOTANIST, VB106, P101

[129] Reid EM., 1933, LONDON CLAY FLORA

[130] Remy W., 1959, PFLANZENFOSSILIEN

[121] SEED FROM UPPER DEVONIAN [J]. SCIENCE, 1967, 156 (3783) : 1727 - &

[122] PETTITT JM, 1964, B BRIT MUSEUM, V10, P83

[123] PLUMBSTEAD E, 1962, FOSSIL FLORAS ANTARC, V9, P1

[124] PLUMSTEAD EDNA P., 1952, TRANS AND PROC GEOL SOC S AFRICA, V55, P281

[125] Plumstead EP, 1967, PALEONT AFRICA, V10, P1

[126] PRAKASH U, 1960, J PALEONTOL, V34, P1027

[127] Prakash U., 1961, J ARNOLD ARBOR, V42, P347, DOI [DOI 10.5962/P.324676, 10.5962/p.324676]

[128] RAMANUJAM CGK, 1960, PALEOBOTANIST, VB106, P101

[129] Reid EM., 1933, LONDON CLAY FLORA

[130] Remy W., 1959, PFLANZENFOSSILIEN