TY - JOUR N2 - The well−known Jurassic macrofloras from Hope Bay at the northernmost tip of the Antarctic Peninsula continue to yield new taxa . This paper reports on a new type of plant re− productive organ. The affinity of this organ r emains unclear; it may be affiliated with the Schizaceae or Osmundaceae, but similarities to po llen organs of the Podocarpaceae are also discussed. Because the fossils differ from hitherto known Mesozoic fertile fronds and conifer pollen organs in some details, the new taxon, Spesia antarctica nov. gen. et sp. is proposed. L1 - http://www.czasopisma.pan.pl/Content/99488/PDF/10183_Volume32_Issue1_05_paper.pdf L2 - http://www.czasopisma.pan.pl/Content/99488 PY - 2011 IS - No 1 EP - 66 DO - 10.2478/v10183−011−0007−7 KW - Antarctic Peninsula KW - Mount Flora Formation KW - Jurassic KW - palaeobotany KW - plantreproductive organ A1 - Ociepa, Anna Maria A1 - Barbacka, Maria PB - Polish Academy of Sciences PB - Committee on Polar Research DA - 2011 T1 - Spesia antarctica gen. et sp. nov. - a new fertile fern spike from the Jurassic of Antarctica SP - 59 UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/99488 T2 - Polish Polar Research ER -