Temporal range: Early Cretaceous, 112 Ma
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Testudines
Clade: Meiolaniformes
Genus: Chubutemys
Gaffney et al., 2007
Type species
Chubutemys copelloi
Gaffney et al., 2007

Chubutemys was an extinct genus of meiolaniform turtle. It lived during the Early Cretaceous of Argentina, around the Albian-Aptian border, within the Puesto La Paloma Member of the Cerro Barcino Formation. It is known from most of the skeleton and carapace, and part of the skull.


A skeleton, including most of the skull, is known for Chubutemys. As the skull was found in the same quarry as the postcranial skeleton, it was decided to be likely to be from the same individual. The shell of the specimen is remarkably thin.[1]


Chubutemys is a turtle that is relatively easy to classify. Among related genera, Sterli et al. found Patagoniaemys to be the most unstable genus. The cladogram below shows the relationships of Chubutemys, and three possible placements of Patagoniaemys:[1]


Proganochelys quenstedti

Proterochersis robusta

Kayentachelys aprix

Patagoniaemys gasparinae

Eileanchelys waldmani



Chubutemys copelloi

Patagoniaemys gasparinae

Mongolochelys efremovi

Pelogrochelys walshae

Patagoniaemys gasparinae

Otwayemys cuncularis

Kallokibotion bajazidi


Niolamia argentina

Ninjemys oweni

Warkalania carinaminor

Meiolania platyceps


Chubutemys is from the Cerro Barcino Formation. A locality of many turtles, nicknamed "Turtle Town", located within the Puesto La Paloma Member of the formation, contains fossils of Chubutemys. The formation includes many layers of pyrloclastic-rich rocks, and the different layers are many different colours. The layer inside the Puesto La Paloma Member, which is coloured green, was dated to the Albian-Aptian boundary.[1]


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