Long and Murry, 1995.

Gallery

http://www.jstor.org/stable/30058365?seq=2
Above figure shows the unique nares located on the hump on the snout that many Phytosaurs have (Mehl, 1913).

 

Stocker and Butler, 2013.
A comparison on Phytosaur skulls showing extreme heterodonty and unique nare placement (Stocker and Butler, 2013).

Above: (a)Paleorhinus bransoni, (b) Paleorhinus parvus, (c) Ebrachosuchus neukami,              
(d) Angiostorhinus, (e) Leptosuchus studeri, (f) Smilosuchus gregorii

Below: (a)Nicrosaurus kapffi, (b) Mystriosuchus planirostris, (c) Machaeroprosopus prisinus, (d) Redondasaurus gregorii