Palaeospheniscus gracilis Ameghino, 1899 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Chordata class Aves order Sphenisciformes family Spheniscidae genus Palaeospheniscus species Palaeospheniscus gracilis Name Synonyms Neculus rothi Ameghino, 1905 Palaeospheniscus medianus Ameghino, 1905 Palaeospheniscus nereius (Ameghino, 1901) Paraspheniscus nereius (Ameghino, 1901) Homonyms Palaeospheniscus gracilis Ameghino, 1899