morphological comparison between the extant polypterus and the devonian osteolepis - fin geology 幅插畫檔、美工圖案、卡通及圖標
restored anatomy and specialized scale structure of holoptychius nobilissimus - powerful lobe-finned fish that inhabited the freshwater environments of the devonian period - fin geology 幅插畫檔、美工圖案、卡通及圖標