From this stage, in which the lamellae would be two-thirds of the length of the plates of baleen in the Balaenoptera rostrata, gradations, which may be observed in still-existing Cetaceans, lead us onward to the enormous plates of baleen in the Greenland whale.
Xaflatxoek Balaenoptera rostrata-ren bizarretako plaken bi hereneko luzera izanen luketen egoeratik, gaur ere bizi diren zetazeoetan ikusi ahal diren mailaketek Groenlandiako balearen bizar eskergetaraino garamatzate.