plosone-phylo
pone.0037110.g003
Mineral deposition in the tympanic bullae of newborn Cetacea, Ruminantia and Hippopotamids represented in a simplified cladistic tree.Evolution of Cetacea and Arctiodactyla reflects progressive skeletal adaptation to aquatic/terrestrial life. We hypothesize that fetal and early post-natal mineral matter deposition in the tympanic bulla represents a key adaptive tract for immediate survival in the aquatic environment. Values of BMD, expressed as g/cm2 are rounded to the next decimal value.
pone.0037110.g003
Mineral deposition in the tympanic bullae of newborn Cetacea, Ruminantia and Hippopotamids represented in a simplified cladistic tree.Evolution of Cetacea and Arctiodactyla reflects progressive skeletal adaptation to aquatic/terrestrial life. We hypothesize that fetal and early post-natal mineral matter deposition in the tympanic bulla represents a key adaptive tract for immediate survival in the aquatic environment. Values of BMD, expressed as g/cm2 are rounded to the next decimal value.