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Recent cladistic analyses reveal that lanthanosuchids have a much more basal position in the Procolophonomorpha, and that the nearest sister taxon to the pareiasaurs are the rather unexceptional and conventional looking nycteroleterids (Müller & Tsuji 2007, Lyson et al. 2010) the two being united in the clade Pareiasauromorpha (Tsuji et al. 2012).
However, this is somewhat unclear, as analysis has shown that Psocodea could instead be the sister taxon to Holometabola, which would render Paraneoptera as paraphyletic. [ 6 ] Here is a simple cladogram showing the traditional relationships with a monophyletic Paraneoptera: [ 6 ]
Thompson et al., 2011 confirmed its separation and recovered it as sister taxon to Pinacosaurus mephistocephalus. [9] A cladistic analysis conducted by Arbour and Currie , 2015 recovered Dyoplosaurus as sister taxon to a clade containing Ankylosaurus , Euoplocephalus , Anodontosaurus and Scolosaurus , while an analysis conducted by Arbour and ...
A phylogenetic analysis of early archosaurs by paleontologist Sterling Nesbitt (2011) found strong support for a sister taxon relationship between phytosaurs and Archosauria. [2] If this is the case, phytosaurs would be placed outside Pseudosuchia in a more basal position among archosauriforms.
Examples are cryptic species in the malaria vector genus of mosquito, Anopheles, the fungi causing cryptococcosis, and sister species of Bactrocera tryoni, or the Queensland fruit fly. That pest is indistinguishable from two sister species except that B. tryoni inflicts widespread, devastating damage to Australian fruit crops, but the sister ...
They concluded that only three hypotheses of aetosaur relationships from previous studies were still true: that Aetosaurus is the most basal aetosaur, that Aetosauroides is the sister taxon of Stagonolepis robertsoni, and that Longosuchus and Desmatosuchus are more closely related to each other than either is to Neoaetosauroides. They also went ...
They included a phylogenetic analysis which placed the Chindesaurus + Tawa clade in the base of Theropoda, a similar position to that first described for Tawa.Their sister-taxon relationship was supported by one apomorphy, or unique derived trait: a posterior margin of the proximal end of the tibia which is divided by two notches. It was also ...
In some phylogenetic studies Bistahieversor is nested within Tyrannosaurinae, [25] [28] but it is most often recovered as the sister taxon to Tyrannosauridae instead. [ 34 ] [ 36 ] The cladogram below displays the position of the Tyrannosaurinae within Eutyrannosauria and Tyrannosauridae, based on the results of phylogenetic analyses performed ...