dos GEOLOGICAL Means
Neither Parker ainsi que al. ( 2005 ) neither Check mais aussi al. ( 2005 ) experimented with a beneficial phylogenetic research away from Roentgen. callenderi based on the the brand new skeletal material. not, each other groups listed numerous options that come with brand new hindlimb which were unambiguous synapomorphies off Pseudosuchia. Parker ainsi que al. ( 2005 ) hypothesized a potential sibling-classification experience of aetosaurs, noting the morphological similarities of your squamosal and paramedian osteoderms. The same condition try suggested by the See mais aussi al. ( 2005 ) according to unspecified character states of your own tarsus and the osteoderms. Brusatte mais aussi al. ( 2010 ) incorporated Roentgen. callenderi within their investigation of early archosaur dating, programming in the composed data and descriptions from Parker ainsi que al. ( 2005 ) and you can Search et al. ( 2005 ). You to analysis retrieved Roentgen. callenderi because cousin taxon towards the very early-diverging suchian clade Ornithosuchidae. ( 2011 ) recovered R. callenderi in the a highly-supported standing just like the cousin taxon so you can aetosaurs, an end result backed by more recent training (age.g., Butler et al., 2014 ; ; Nesbitt & Butler, 2013 ; Nesbitt et al., 2014 ; Nesbitt ainsi que al., 2020 ; Nesbitt, Stocker, ainsi que al., 2018 ).
It contribution completely makes reference to the newest osteology from R. callenderi considering at least a dozen individuals (considering femora count) from PEFO together with three really-kept relevant partial skeletons compiled anywhere between 2005 and you will 2015, will bring osteohistological perspective, and covers brand new taxon’s strengths to own information early suchian development. Continue reading “Other greater-size study off archosaur relationships of the Nesbitt et al”