Xotodon

Xotodon
Temporal range: Miocene
(late Miocene), 9.0–6.8 Ma
Xotodon sp. skull at the Museum für Naturkunde, Berlin
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: †Notoungulata
Family: †Toxodontidae
Subfamily: †Toxodontinae
Genus: †Xotodon
Ameghino, 1887
Type species
†Xotodon foricurvatus
(Ameghino, 1885)
Other species
  • †X. ambrosetti
    Rovereto, 1914
  • †X. caravela
    Armella & colleagues, 2018
  • †X. cristatus
    (Moreno and Mercerat), 1891
  • †X. doellojuradoi
    Frenguelli, 1920
  • †X. maimarensis
    Bonini & colleagues, 2017
  • †X. major
    Rovereto, 1914
  • †X. prominens
    Ameghino, 1888

Xotodon is an extinct genus of toxodontid mammal that lived during the Late Miocene (Huayquerian in the SALMA classification) in Argentina, South America. Fossils of Xotodon have been found in the Ituzaingó, Maimará and Chiquimil Formations of Argentina.

Palaeobiology

Diet

The δ13C ratios of Xotodon suggest they were mixed feeders that consumed a range of both C3 and C4 plants.

References

  1. ↑ Nasif, N. L.; Musalem, S. A.; Cerdeño, E. (2000). "A new toxodont from the Late Miocene of Catamarca, Argentina, and a phylogenetic analysis of the Toxodontidae". Journal of Vertebrate Paleontology. 20 (3): 591. doi:10.1671/0272-4634(2000)020[0591:ANTFTL]2.0.CO;2. S2CID 85788431.
  2. ↑ Xotodon at Fossilworks.org
  3. ↑ Sanz-Pérez, Dánae; Tomassini, Rodrigo L.; Montalvo, Claudia I.; Zurita, Alfredo; Hernández Fernández, Manuel; Domingo, Laura (31 May 2024). "Stable isotope analysis evidences dietary changes in toxodontids (Mammalia, Notoungulata) across the Neogene-Quaternary from Argentina". Spanish Journal of Palaeontology. doi:10.7203/sjp.28828. hdl:10261/423795. ISSN 2660-9568. Retrieved 15 February 2026 – via ResearchGate.