#hesperonis

[paleotanks]

Hesperornis, University of Kansas Natural History Museum.

[museaumofnaturalhistory]

Marine Food Chain : Hesperornis, Xiphactinus, Tylosaurus - by ABelov2014

[rfoyerart]

Combining today's inktober (underwater) and dinoween (hesperonis)! It's not a swamp monster... it's a swamp dino!

[tendervulture]

A Hesperonis paddling in the Western Interior Seaway to go Trick-or-Treating for @a-dinosaur-a-day‘s Dinoween. You can’t sea it very well (see what I did there?), but she’s dressed up as the monster from the upcoming film, The Shape Of Water.

[crocutable]

Hesperonis, a 6′ long Cretaceous diving bird, for Draw a Bird Day.