Way too cool is an understatement

Knoll, F., P. M. Galton & R. Lopez-Antonanzas. 2006.
Paleoneurological evidence against a proboscis in the sauropod
dinosaur _Diplodocus_. Geobios 39 (2): 215-221.

"The dinosaur Diplodocus has a single, relatively large external bony
narial orifice that is positioned far back between the orbits. In
some mammals, such as elephants and tapirs, the caudal position of
the narial opening is associated with a proboscis, so it has been
suggested that Diplodocus possibly also had a trunk."

Now, beat that!