Paraptenodytes fossil map
Where fossils of Paraptenodytes 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 1891 |
| Fossil records | 9 occurrences at 4 locations (PBDB) |
| Found in | Argentina |
| Rock formations | Gaiman, Monte Leon, Santa Cruz |
About Paraptenodytes
Paraptenodytes is an extinct genus of penguins which contains two or three species sized between a Magellanic penguin and an emperor penguin (Aptenodytes forsteri). They are known from fossil bones ranging from a partial skeleton and some additional material in the case of P. antarcticus, the type specimen for the genus, and a single humerus in the case of P. brodkorbi. The latter species is therefore often considered invalid; a recent study considers it indeed valid, but distinct enough not to belong into Paraptenodytes. The fossils were found in the Santa Cruz and Chubut Provinces of Patagonia, Argentina, in the Gaiman, Monte León and Santa Cruz Formations of Early to Middle Miocene age. Later occurrences are apparently from Late Miocene or possibly even Early Pliocene deposits.
Together with the related genus Arthrodytes, they form the subfamily Paraptenodytinae, which is not an ancestor of modern penguins.
Text in “About” is quoted from the Wikipedia article Paraptenodytes (revision 1258134820), 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: Q3895277.