Arthrodytes fossil map
Where fossils of Arthrodytes have been found, shown on the Earth as it looked about 15 million years ago and on today’s map.
Dots are fossil collections recorded in the Paleobiology Database. The “then” view moves today’s fossil sites back to their positions 15 million years ago (the time slice nearest the median age of the fossils) using the Merdith et al. (2021) plate model; positions are approximate. Open on the timeline map →
| Group | Prehistoric birds |
|---|---|
| Lived | 23.04–15.98 million years ago (Aquitanian to Burdigalian) |
| Periods | Neogene |
| Family | Spheniscidae |
| Named by | Ameghino 1905 |
| Fossil records | 2 occurrences at 2 locations (PBDB) |
| Found in | Argentina |
| Rock formations | Gaiman, Monte Leon |
About Arthrodytes
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.
Text in “About” is quoted from the Wikipedia article Arthrodytes (revision 1272457245), licensed under CC BY-SA 4.0; introduction excerpted verbatim, formatting removed. Ages, family, authority and fossil records: Paleobiology Database, accessed 23 October 2026. Ages are those of the rock layers the fossils were found in. Wikidata: Q30692749.
