A new small-sized penguin from the late Eocene of Seymour Island with additional material of Mesetaornis polaris Jadwiszczak, Piotr ; Reguero, Marcelo ; Mörs, Thomas Abstract Publication: GFF Pub Date: July 2021 DOI: 10.1080/11035897.2021.1900385 Bibcode: 2021GFF...143..283J