Artículo
Abstract:
Octodontid rodents allied to the living burrowing tuco-tucos (genus Ctenomys) experienced a moderate cladogenesis from the early Pliocene to the early Pleistocene, depicted by well-differentiated monospecific or paucispecific genera. This multigeneric and paucispecific radiation contrasts with the explosive pattern of species differentiation within the limits of the genus Ctenomys which characterizes a second phase of ctenomyine radiation. A possible explanation of the particular pattern of the ctenomyine cladogenesis is that the different genera of the Pliocene-early Pleistocene radiation represent different alternative adaptations to excavation in burrowing rodents, whereas the differentiation of Ctenomys species may have been mainly due to stochastic processes of fixation of chromosomal rearrangement triggered by the dynamics of molecular changes once an optimal burrowing adaptation was attained. The taxonomy of the fossil forms is far from being well known, and a revision of the different Plio-Pleistocene genera is needed. The results are presented of studies on the available material of the genus Eucelophorus, which seems to represent a good example of tooth-burrowing. -from Authors
Registro:
| Documento: | Artículo |
| Título: | Fossil ctenomyine rodents of the genus Eucelophorus (Caviomorpha: Octodontidae) from the Pliocene and early Pleistocene of Argentina |
| Autor: | Reig, O.A.; Quintana, C.A. |
| Filiación: | CONICET, GIBE, Departamento de Ciencias Biologicas, Universidad de Buenos Aires. Pabellon II, 4 piso, Ciudad Universitaria, Nunez, 1428 Buenos Aires, Argentina, Argentina |
| Palabras clave: | burrowing; cladogenesis; Eucelophorus; Pleistocene; Pliocene; rodent; Argentina; Buenos Aires; Caviomorpha; Ctenomyidae; Ctenomys; Octodontidae; Rodentia; Zanclea |
| Año: | 1992 |
| Volumen: | 29 |
| Número: | 4 |
| Página de inicio: | 363 |
| Página de fin: | 380 |
| Título revista: | Ameghiniana |
| ISSN: | 00027014 |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00027014_v29_n4_p363_Reig |
Citas:
---------- APA ----------
Reig, O.A. & Quintana, C.A. (1992) . Fossil ctenomyine rodents of the genus Eucelophorus (Caviomorpha: Octodontidae) from the Pliocene and early Pleistocene of Argentina. Ameghiniana, 29(4), 363-380.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00027014_v29_n4_p363_Reig [ ]
---------- CHICAGO ----------
Reig, O.A., Quintana, C.A. "Fossil ctenomyine rodents of the genus Eucelophorus (Caviomorpha: Octodontidae) from the Pliocene and early Pleistocene of Argentina" . Ameghiniana 29, no. 4 (1992) : 363-380.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00027014_v29_n4_p363_Reig [ ]
---------- MLA ----------
Reig, O.A., Quintana, C.A. "Fossil ctenomyine rodents of the genus Eucelophorus (Caviomorpha: Octodontidae) from the Pliocene and early Pleistocene of Argentina" . Ameghiniana, vol. 29, no. 4, 1992, pp. 363-380.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00027014_v29_n4_p363_Reig [ ]
---------- VANCOUVER ----------
Reig, O.A., Quintana, C.A. Fossil ctenomyine rodents of the genus Eucelophorus (Caviomorpha: Octodontidae) from the Pliocene and early Pleistocene of Argentina. 1992;29(4):363-380.Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00027014_v29_n4_p363_Reig [ ]
