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Arthrodytes Temporal range: Late Eocene-Early Oligocene or Early Miocene ~23–16 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Sphenisciformes
Family:	Spheniscidae
Subfamily:	†Paraptenodytinae
Genus:	†Arthrodytes Ameghino 1905
Species
A. andrewsi (type)

Arthrodytes is an extinct genus of penguins which contains a single species, whose remains have been recovered from the San Julian Formation (Late Eocene to Early Oligocene) of Patagonia. Other authors report a younger age for the fossils recovered from the Early Miocene Gaiman and Monte León Formations.

Together with the related genus Paraptenodytes, they form the subfamily Paraptenodytinae, which is not ancestral to modern penguins.

References

1. ^ Hospitaleche, Carolina Acosta (2005). "Systematic revision of Arthrodytes Ameghino, 1905 (Aves, Spheniscidae) and its assignment to the Paraptenodytinae". Neues Jahrbuch für Geologie und Paläontologie. 2005 (7): 404–14. doi:10.1127/njgpm/2005/2005/404.
2. Arthrodytes at Fossilworks.org

v t e Genera of penguins, petrels, and albatrosses and their extinct allies
Kingdom: Animalia Phylum: Chordata Class: Aves Infraclass: Neognathae Clade: Austrodyptornithes
Sphenisciformes incertae sedis †Arthrodytes †Aprosdokitos †Kaiika †Kumimanu †Kupoupou †Muriwaimanu †Nucleornis †Orthopteryx †Pakudyptes †Petradyptes †Sequiwaimanu †Tonniornis †Waimanu †Wimanornis Spheniscidae †Crossvallia †Dege †Duntroonornis †Korora †Icadyptes †Inguza †Inkayacu †Kairuku †Marambiornopsis †Marplesornis †Palaeoapterodytes †Perudyptes †Pseudaptenodytes †Tasidyptes †Tereingaornis †Palaeospheniscinae Eretiscus Palaeospheniscus †Paraptenodytinae Arthrodytes Paraptenodytes †"Palaeeudyptinae" Anthropodyptes Anthropornis Archaeospheniscus Delphinornis Marambiornis Mesetaornis Pachydyptes Palaeeudyptes Platydyptes Spheniscinae Aptenodytes Eudyptes Eudyptula †Madrynornis Megadyptes Pygoscelis Spheniscus
Procellariiformes incertae sedis †Kievornis †Lonchodytes? †Makahala †Diomedeoididae Diomedeoides Rupelornis †Marinavidae Marinavis †Tytthostonychidae Tytthostonyx Diomedeidae †Aldiomedes †Diomedavus Diomedea †Murunkus †Notoleptos Phoebastria Phoebetria †Plotornis Thalassarche †Tydea Oceanitidae Fregetta Garrodia Nesofregetta Oceanites Pelagodroma Hydrobatidae Hydrobates Procellariidae Aphrodroma Ardenna †Argyrodyptes Bulweria Calonectris Daption †Eopuffinus Fulmarus Halobaena Macronectes Pachyptila Pagodroma Pelecanoides †Primodroma Procellaria Pseudobulweria Pterodroma †Pterodromoides Puffinus Thalassoica

• Extinct penguins
• Bird genera
• Eocene birds
• Oligocene birds
• Paleogene birds of South America
• Miocene birds of South America
• Paleogene Argentina
• Neogene Argentina
• Fossils of Argentina
• Gaiman Formation
• Fossil taxa described in 1905
• Taxa named by Florentino Ameghino