In reference to the basal position of the new taxon within Sauropodomorpha.
Compared with that the species (e.g., A. crinosa, A. horii) in the basal position of the phylogeny have longer and much more setae on Ant.III than the others, the directional walk is likely toward regression in Aphis.
As some of these analyses demonstrated [9], [12], the basal position of the rodents in the mtg tree of placental mammals was sensitive to the sampling of other basal taxa and to the analytical approaches applied.
This cluster was located at the basal position of the Dlx2/3/5 clade.
By contrast, Gastrophrynoides occupied the most basal position of the Australian-New Guinean subfamily Asterophryinae.
Under this model, a basal position of the Ctenohystrica is the most likely.
Takhtajan [ 2] suggested a basal position of the Asian genus Cyananthus.
For example, while the dataset with maximum rate ≤ 0.5 supports a basal position of the mouse-related clade, the dataset with maximum rate ≤ 0.6 supports a basal position of the Ctenohystrica.
Our results further suggest that a basal position of the mouse-related clade is the least likely, while a basal position of the squirrel-related clade may be the most likely.
Whereas Gaffney and Meylan [ 59] and Shaffer et al. [ 60] hypothesised a basal position of the snapping turtles (Chelydridae) within Cryptodira, Joyce's [ 6] analysis resulted in a basal position of the sea turtles (Chelonioidea) within living taxa.
Most analyses, however, agree in the basal position of the admetus + dolus clade and all of them recover the poseidon clade at the tip of the tree.
