However, using rank-based taxonomy, many modern zoologists define dinosaurs as Archosauria, and retain the Linnaean definition of birds as Aves . talk ) 21 : 56, 12 June 2014 ( UTC)
32.
Young, 1964 was formerly regarded as a species of " Proterosuchus ", but it was recently re-assessed as not belonging to a proterosuchid and instead a " nomen dubium " referable to Archosauria.
33.
These analyses revealed little change in the relationships ( apart from the constraints themselves ), but major chances to the traits associated with these relationships, changing the traits that were considered to diagnosed Pseudosuchia, Archosauria, and other clades.
34.
Gauthier's corpus is remarkable in that he contributed the foundational phylogenetic studies of Archosauria and Lepidosauria, two major amniote clades; and he was the primary author of the foundational and still widely cited phylogenetic study of Amniota as a whole.
35.
According to Nesbitt ( 2009 ), this trait is absent in Archosauria with the possible exception of " Arizonasaurus " and " Poposaurus ", but was used as a synapomorphy of Erythrosuchia in Parrish ( 1992 ) phylogenetic analysis.
36.
This group also includes all extinct non-avian dinosaurs, extinct crocodilian relatives, and pterosaurs . "'Archosauria "', the archosaur clade, is a crown group that includes the most recent common ancestor of living birds and crocodilians.
37.
Although originally classified as a coelurosaur or a ceratosaur, a new study of the fossil specimen found that it was too incomplete to assign to a group more specific than Archosauria, and so it was regarded as indeterminate by Rauhut and Hungerbuhler in 2000.
38.
Through utilizing the first genomic-scale phylogenetic analysis of ultraconserved elements ( UCEs ) to investigate the placement of turtles within reptiles, Crawford et al . ( 2012 ) also suggest that turtles are a sister group to birds and crocodiles ( the Archosauria ).
39.
Within diapsids, some place turtles within Archosauria, or, more commonly, as a sister group to extant archosaurs, though an analysis conducted by Lyson " et al . " ( 2012 ) recovered turtles as the sister group of lepidosaurs instead.
40.
Therefore, it's not clear if " Nundasuchus " is either a suchian that has convergences with far more basal archosaurs as the two phylogenetic analyses suggest, or an archosauriform related to Archosauria, with convergent morphology to the more advanced paracrocodylomorphs.
