@base . a , , ; , , ; "Newsletter: Birbal Sahni Institute of Palaeobotany." ; ; ; "0972-2718" ; ; "0972-2718" ; ; "0972-2718" ; "Newsletter: Birbal Sahni Institute of Palaeobotany" , "Newsletter: Birbal Sahni Institute of Palaeobotany." ; . a . a ; "0972-2718" ; . . "India" . a ; . a ; ; "20120726104900.0"^^ ; ; . a , ; "Newsletter: Birbal Sahni Institute of Palaeobotany" . a ; "0972-2718" ; .