Neoreomys
| Neoreomys Temporal range: | |
|---|---|
Scientific 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]
Description
[edit]The incisors of Neoreomys australis were characterised by an enamel microstructure consisting of an interprismatic matrix whose crystallites ran parallel or at a very low angle to enamel prisms and without totally surrounding each prism.[3]
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.[4]
Diet
[edit]Dental microwear analysis has found that Neoreomys australis was a consumer of fruits and seeds.[5]
References
[edit]- ↑ "PBDB Taxon". Retrieved 18 December 2025.
- ↑ 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.
- ↑ Boivin, Myriam; Marivaux, Laurent; Salas-Gismondi, Rodolfo; Vieytes, Emma C.; Antoine, Pierre-Olivier (22 February 2018). "Incisor Enamel Microstructure of Paleogene Caviomorph Rodents from Contamana and Shapaja (Peruvian Amazonia)". Journal of Mammalian Evolution. 26 (3): 389–406. doi:10.1007/s10914-018-9430-4. ISSN 1064-7554. Retrieved 14 September 2026 – via Springer Nature Link.
- ↑ 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. hdl:11336/268662. ISSN 2056-2799. Retrieved 18 December 2025 – via Wiley Online Library.
- ↑ Townsend, K. E Beth; Croft, Darin Andrew (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.
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