**Holotheria** ugaztun klado bat da, batzuetan infraklase gisa izendatua (sailkapenaren arabera). Mammalia eta Theriaren arteko leku bat izango luke, nahiz eta gertuago dagoen Theriak ordezkatzen duenetik Mammalia osotik baino.

Sailkapena
----------

McKenna eta Bell-ek jerarkia ezarri zuten 1997an:

```
--o **Holotheria** Wible et al. 1995 
  |-- Chronoperatidae Fox, Youzwyshyn & Krause, 1992 (†)
  |-o Kuehneotheria McKenna, 1975 (†)
  `-o Trechnotheria McKenna, 1975 (≈Yangotheria Chow & Rich, 1982)
    |-o Amphiodontoidea Prothero, 1981 (†)
    |-o Spalacotherioidea Prothero, 1981 (†)
    `-o Symmetrodonta Simpson, 1925
      |-o Yinotheria Chow & Rich, 1982 (†)
      `-o Cladotheria McKenna, 1975 
        |-o Dryolestoidea Prothero, 1981 (†)
        `-o Amphiteriida Prothero, 1981
          `-o Zatheria McKenna, 1975
            |-o Peramura McKenna, 1975 (†)
            `-o Tribosphenida McKenna, 1975
              |-o Aegialodontia Butler, 1978 (†)
              `-o Theria Parker & Haswell, 1897 
                |-o Metatheria Huxley, 1880 
                `-o Eutheria Gill, 1872
```

Ondoren eginiko lan batzuetan proposamen hori berrikusi eta hainbat aldaketa egin dira. Artikulu batzuk aipatzearren:

* Wang, Clemens, Hu & Li, 1998.
* Rougier, Novacek, McKenna & Wible, 2001.
* Luo, Cifelli & Kielan-Jaworowska, 2001
* Luo, Kielan-Jaworowska & Cifelli, 2002
* Kielan-Jaworowska, Cifelli & Luo, 2004.

Kladograma honetan aipatzen dira aurreko erreferentziatan aipatutako aldaketak:

```
--o **Holotheria** Wible et al. 1995 
  |-- Chronoperatidae Fox, Youzwyshyn & Krause, 1992 (†)
  `-o Trechnotheria McKenna, 1975 (≈Yangotheria Chow & Rich, 1982)
    |-o Amphiodontoidea Prothero, 1981 (†)
    |-- Austrotriconodontidae Bonaparte, 1990 (†)
    |-- Gobiconodontidae Chow & Rich, 1984 (†)
    |-- Amphilestidae Osborn, 1888 (†)
    |-o Spalacotherioidea Prothero, 1981 (†)
    `-o Symmetrodonta Simpson, 1925
      |-o Eutriconodonta Kermack, Musset & Rigney, 1973 (†)
      `-o Cladotheria McKenna, 1975 
        |-o Dryolestoidea Prothero, 1981 (†)
        `-o Zatheria McKenna, 1975
          |-o Amphiteriida Prothero, 1981 (†)
          |-o Boreosphenida Luo, Cifelli, & Kielan-Jaworowska, 2001 (†)
          | |-o Aegialodontia Butler, 1978 (†)
          | `-o Theria Parker & Haswell, 1897 
          |   |-o Metatheria Huxley, 1880 
          |   `-o Eutheria Gill, 1872 
          `-o Peramura McKenna, 1975 (†)
```

Erreferentziak
--------------

1. ↑  McKenna, M.C. y Bell, S.K. (1997), Classification of Mammals Above the Species Level. Columbia University Press, New York. 0-231-11013-8.
2. ↑  Wang, Y. Clemens, W. M. Hu, Y. & Li, C. 1998: A probable pseudo-tribosphenic upper molar from the Late Jurassic of China and the early radiation of the Holotheria. Journal of Vertebrate Paleontology: vol. 18.
3. ↑  Rougier, G. W. Novacek, M. J. McKenna, M. C. & Wible, J. R. 2001: Gobiconodonts from the Early Cretaceous of Oshih (Ashile), Mongolia. American Museum Novitates: #3348
4. ↑  Luo, Z.-X. Cifelli, R. L. & Kielan-Jaworowska, Z. 2001: Dual origin of tribosphenic mammals. Nature: Vol. 409, 4
5. ↑  Luo, Z.-X. Kielan-Jaworowska, Z. & Cifelli, R. L. 2002: In quest for a phylogeny of Mesozoic mammals. Acta Palaeontologica Polonica: Vol. 47, #1
6. ↑  Kielan-Jaworowska, Z. Cifelli, R. L. & Luo, Z.-X. 2004: Mammals from the Age of Dinosaurs – origins, evolution, and structure. Columbia University Press, New York, 2004

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| Autoritate kontrola | 
* **Wikimedia proiektuak**
* Wd Datuak: Q2478975
* Commonscat Multimedia: Holotheria

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* **Datu taxonomikoak**
* BioLib: 399750
* Paleobiology Database: 97115

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* Wd Datuak: Q2478975
* Commonscat Multimedia: Holotheria