Kossinna, E., “Die Tiefen des Weltmeeres” Veröff Inst. f. Meereskunde d. Univ. Berlin, N.F., Reihe A., No. 9, Berlin, 35 (1921). Green, L., Vestiges of the ...

Laurasia, the northern half, broke up into North America and Eurasia. Gondwana, the southern half, began to break up by the mid-Jurassic. The eastern portion—Antarctica, Madagascar, India ...