Xiaochelys ningchengensis • A Sinemydid Turtle from the Jehol Biota provides insights into the Basal Divergence of Crown Turtles

Morphological phylogenies stand in a major conflict with molecular hypotheses regarding the phylogeny of Cryptodira, the most diverse and widely distributed clade of extant turtles. However, molecular hypotheses are often considered a better estimate of phylogeny given that it is more consistent with the stratigraphic and geographic distribution of extinct taxa. Leer más.