After McKenna & Bell, 1997 and de Muizon, McDonald, Salas & Urbina, 2003, 2004
<==o †Nothrotheriidae Ameghino, 1920 sensu de Muizon, McDonald, Salas & Urbina, 2004 [Synonyms] |?- †Gilsolaresia Roselli, 1976 `--+--o †Thalassocnus de Muizon & McDonald, 1995; U. Mioc. U. Plio. WSA. [Thalassocninae de Muizon, McDonald, Salas & Urbina, 2004] (aquatic sloths, vesilaiskiaiset) | |-- †T. antiquus de Muizon, McDonald, Salas & Urbina, 2003 | `--+-- †T. natans de Muizon & McDonald, 1995 | `--+-- †T. littoralis McDonald & de Muizon, 2002 | `--+-- †T. carolomartini McDonald & de Muizon, 2002 | `-- †T. yaucensis de Muizon, McDonald, Salas & Urbina, 2004 `--o †Nothrotheriinae Ameghino, 1920 sensu de Muizon, McDonald, Salas & Urbina, 2004 |?- †Amphibradys Scillato-Yané & Carlini, 1998 |?- †Chasicobradys Scillato-Yané, Carlini & Vizcaíno, 1987 |?- †Huilabradys Villarroel, 1998 |?- †Xyophorus Ameghino, 1887 |--+-- †Pronothrotherium typicum Ameghino, 1907 [Senetia Kraglievich, 1925] | `-- †Nothropus priscus Burmeister, 1882 `--+-- †Nothrotherium maquinense (Lund, 1838) Lydekker, 1889 [Coelodon Lund, 1838; Hypocoelus Ameghino, 1891] `-- †Nothrotheriops shastensis Hoffstetter, 1954
Reference(s):
- Carroll, R. L., 1988: Vertebrate paleontology and evolution.
–W. H. Freeman and company, New York, 1988, 698. - Carroll, R. L., 1988: Appendix. 594-648.
in Carroll, R. L., 1988: Vertebrate paleontology and evolution.
–W. H. Freeman and company, New York, 1988, 698. - McDonald, H. G. & de Muizon, C., 2002: The cranial anatomy of Thalassocnus (Xenarthra, Mammalia), a derived nothrothere from the Neogene of the Pisco Formation (Peru).
–Journal of Vertebrate Paleontology: Vol. 22, #2, pp. 349-365 - McKenna, M. C. & Bell, S. K., (eds.) 1997: Classification of mammals – above the species level.
–Columbia University Press, New York, 1997, xii-631 - de Muizon, C., McDonald, H. G., Salas, R. & Urbina, M., 2003: A new early species of the aquatic sloth Thalassocnus (Mammalia, Xenarthra) from the Late Miocene of Peru.
–Journal of Vertebrate Paleontology: Vol. 23, #4, pp. 886-894 - de Muizon, C., McDonald, H. G., Salas, R. & Urbina, M., 2004: The youngest species of the aquatic sloth Thalassocnus and a reassessment of the relationships of the nothrothere sloths (Mammalia: Xenarthra). –Journal of Vertebrate Paleontology: Vol. 24, #2, pp. 387-397