Nasoral grooves are present, connecting the external nares to the mouth.
2.
Other synapomorphies of Eusauropoda includes a retracted position of the external nares.
3.
They do not have external nares ( nostrils ) and breathe solely through their epiglottis.
4.
DeMar mentions that the external nares is enlarged and measures up to 1 cm long in larger specimens.
5.
This is now seen as implausible because of the position of the external nares on the snout being placed so far anteriorly.
6.
The telescoped, dorsally positioned external nares are seen as protection against impact if the animal rammed prey with its robust snout.
7.
From well-preserved fossils, it is observed that they share a paltybasic skull with eye ridges, and external nares situated on the margin of the mouth.
8.
*in that the upper margin of the external nares is located dorsal to the ventral orbit margins, and in that the foramen jugularis posterius is confluent with the fenestra postotica.
9.
They are defined as all eryopoids with interpterygoid vacuities ( spaces in the interpterygoid bone ) that are rounded at the front; and large external nares ( Laurin and Steyer 2000 ).
10.
Retains external nares above upper canines, high neural spines on anterior thoracic vertebrae, and four sacral vertebrae with sacroiliac joints similar to those in land-mammals ( suggesting a hip joint that could support the body weight .)
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