THE HEART OP THE ANTARCTIC 



from the Trias- Jura rocks of Eastern Australia and 

 India, some of the forms being found also in South 

 Africa and in the Argentine Republic. The distribution 

 is shown on the following table: 



S. Africa India Argentine Australia 



Sagenopteris * . . . — x — x 



Thinnfeldia . . . x x x x 



Cladophlebis . . . • x x — x 



Pterophyllum . . . — x x x 



Otozamites ... — x — x 



So far no trace has been found in this flora of any 

 representatives of the Glossopteris Flora of Gondwana 

 Land, such as the Phyllotheca discovered by Gunnar 

 Andersson in the Falkland Islands. Evidently in Jurassic 

 time a mild and a moist climate prevailed in Antarctica. 



The abundance of cretaceous Ammonites collected by 

 the JSTordenskjold expedition at Snow Hill Island, to the 

 east of Graham Land, points to a continuance of mild con- 

 ditions into cretaceous time. The fossil Araucaria, Beech, 

 &c., unearthed by the Nordenskjold expedition at Sey- 

 mour Island, adjoining Snow Hill Island on the north- 

 east, prove that these mild conditions were further pro- 

 longed into some part of Tertiary time. 



In marine strata, also of Tertiary age, and considered 

 by Wilckens f to belong to Upper Oligocene or Lower 

 Miocene, the Nordenskjold expedition found numerous 

 bird bones since referred to five new genera, of penguins J 



* This list has been kindly supplied by Mr. W. S. Dun, Paleon- 

 tologist Geol. Sur. N.S. Wales, and of Sydney University. 



t Die Meeresablagerungen der Kreide — ^und Tertiarablagerungen 

 in Patagonien. Neues Jahr. f. Min. Beilage-Band 21. 1905. 



X These are stated by Gunnar Andersson to be Anthropornis Nor- 

 densJcjoldi, Pachyteryx, Espheniscus Gunnari, Delphinornis Larsenii 

 and Ichthyopteryx gracilis, v. Bulletin of the Geological Institution of 

 the University of Upsala. Vol. vii., 1904-5, No. 13-14, p. 45. 



278 



