Nundasuchus: a new archosaur (Nesbitt et al. 2014)

Updated May 25, 2015, with a new image of Nundasuchus featuring more elements .

A new paper
by Nesbitt et al. 2014 describes a Middle Triassic archosaur, Nundasuchus, they nested close to Ticinosuchus using Nesbitt (2011). Nundasuchus is also basal to all “pseudosuchia” (phytosaurs, aetosaurs, crocs, rauisiuchians, etc., but not Euparkeria or Proterochampsidae using Brusatte et al. (2010).

Unfortunately,
both studies have serious flaws and red flags we looked at earlier here and here.

Figure 1. from Nesbitt et al. 2014. Plus foot reconstructed here and closeups of the mandible and tooth.

Figure 1. from Nesbitt et al. 2014. Plus foot reconstructed here and closeups of the mandible and tooth.

In the large reptile tree Nundasuchus also nests with Ticinosuchus, but not basal to all pseudosuchians.  Nundasuchus is also a sister to the clade Arizonasaurus + Qianosuchus + Yarasuchus and to Decuriasuchus.

Although represented by only a few bits and pieces (Fig. 1), enough is known to firmly nest Nandusuchus. 

References
Nesbitt SJ, Sidor  CA, Angielczyk KD, Smith RMH and Tsuji LA 2014. A new archosaur from the Manda beds (Anisian, Middle Triassic) of southern Tanzania and its implications for character state optimizations at Archosauria and Pseudosuchia, Journal of Vertebrate Paleontology, 34:6, 1357-1382.

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s