Ankylopoda was a proposed clade that hypothetically contains turtles and lepidosaurs (tuatara, lizards and snakes) and their fossil relatives. This clade was historically supported based on microRNA analysis[1] as well as some cladistic analyses.[2] However, it was strongly contradicted by molecular evidence which supports Archelosauria (the grouping of turtles and archosaurs),[3] and other recent cladistic analyses have supported Archelosauria over Ankylopoda.[4]
^Schoch, R. R.; Sues, H.-D. (2015). "A Middle Triassic stem-turtle and the evolution of the turtle body plan". Nature. 523 (7562): 584–7. doi:10.1038/nature14472. PMID26106865.