Fossil specimen of the ammonoid cephalopod *Gunnarites* sp. from the Cretaceous Lopez de Bertodano Formation of Snow Hill Island, Antarctica (PRI 61543). Specimen is from the collections of the [Paleontological Research Institution](http://www.priweb.org), Ithaca, New York. Diameter of specimen (not including surrounding rock) is approximately 9 cm. Model by Emily Hauf. See other half of this specimen at: https://sketchfab.com/models/dc28706b4aeb42da87e3c136a646206e