Neoreomys
Temporal range: Burdigalian–Tortonian
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Superfamily: Cavioidea
Genus: Neoreomys
Ameghino, 1887
Type species
Neoreomys australis
Ameghino, 1887
Other species

Neoreomys huilensis Fields, 1957

Neoreomys limatus Ameghino, 1891

Neoreomys pinturensis Kramarz, 2006

Neoreomys is an extinct genus of caviomorph rodent that lived in South America during the Miocene epoch.[1]

Taxonomy

[edit]

Phylogenetic analysis has shown Neoreomys to be a monophyletic genus not closely related to Dasyproctidae, but instead representing a plesiomorphic member of Cavioidea.[2]

Palaeobiology

[edit]

Locomotion

[edit]

Geometric morphometric analysis of the foot of Neoreomys points to it having had a generalised mode of ambulation, in contrast to other Late Oligocene and Early Miocene caviomorphs.[3]

Palaeoecology

[edit]

Dental microwear analysis has found that Neoreomys australis was a consumer of fruits and seeds.[4]

References

[edit]
  1. ^ "PBDB Taxon". Retrieved 18 December 2025.
  2. ^ Urrea-Barreto, Francisco J.; Link, Andrés; Carrillo, Juan D.; Vanegas, Andrés; Perdomo, César A.; Cooke, Siobhán B.; Tallman, Melissa; Pérez, María E. (21 December 2023). "Systematic revision of Neoreomys huilensis Fields, 1957 (Rodentia, Hystricognathi) from the Middle Miocene of La Venta (Villavieja, Colombia)". Geodiversitas. 45 (25). doi:10.5252/geodiversitas2023v45a25. ISSN 1280-9659. Retrieved 18 December 2025 – via BioOne Digital Library.
  3. ^ Candela, Adriana M.; Muñoz, Nahuel A.; García Esponda, César M.; Vizcaíno, Sergio F. (18 November 2024). "Evolutionary trends of caviomorph rodents as elucidated using their oldest foot anatomy". Papers in Palaeontology. 10 (6). doi:10.1002/spp2.1606. ISSN 2056-2799. Retrieved 18 December 2025 – via Wiley Online Library.
  4. ^ Townsend, K. E Beth; Croft, Darin A. (5 June 2008). "Enamel microwear in caviomorph rodents". Journal of Mammalogy. 89 (3): 730–743. doi:10.1644/06-MAMM-A-336R1.1. ISSN 0022-2372. Retrieved 18 December 2025 – via Oxford Academic.