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Djadochtatherium
Taxonomy
Djadochtatherium was named by Simpson (1925).
It was synonymized subjectively with Catopsalis by Kielan-Jaworowska and Sloan (1979) and Clemens and Kielan-Jaworowska (1979).
It was assigned to Ptilodontidae by Simpson (1928); to Taeniolabididae by Kielan-Jaworowska (1974); and to Djadochtatheriidae by Kielan-Jaworowska and Hurum (1997), Kielan-Jaworowska and Hurum (2001), Kielan-Jaworowska et al. (2002) and Kielan-Jaworowska et al. (2004).
It was synonymized subjectively with Catopsalis by Kielan-Jaworowska and Sloan (1979) and Clemens and Kielan-Jaworowska (1979).
It was assigned to Ptilodontidae by Simpson (1928); to Taeniolabididae by Kielan-Jaworowska (1974); and to Djadochtatheriidae by Kielan-Jaworowska and Hurum (1997), Kielan-Jaworowska and Hurum (2001), Kielan-Jaworowska et al. (2002) and Kielan-Jaworowska et al. (2004).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1925 | Djadochtatherium Simpson |
| 1928 | Djadochtatherium Simpson p. 2 |
| 1974 | Djadochtatherium Kielan-Jaworowska p. 40 |
| 1997 | Djadochtatherium Kielan-Jaworowska and Hurum p. 212 |
| 2001 | Djadochtatherium Kielan-Jaworowska and Hurum p. 417 |
| 2002 | Djadochtatherium Kielan-Jaworowska et al. |
| 2004 | Djadochtatherium Kielan-Jaworowska et al. pp. 254, 324 fig. 8.40J |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| Z. Kielan-Jaworowska and J. H. Hurum 1997 | Skull length about 50-55 rnm, ml cusp formula 4:3. Differs from Kryptobaatar in being distinctly larger; shares with Kryptobaatar and Catopsbaatar similar shape of the snout. Shares with Kryptobaatar presence of four upper premolars and arcuate p4. The p4 is only insignificantly longer than ml. Differs from Catopsbaatar and Tombaatar in having four, rather than three upper premolars. Shares with Catopsbaatar very long postorbital process and robust lower incisor, but differs from it in having the orbit placed somewhat more anteriorly, and relatively larger and arcuate p4 (subtrapezoidal in Catopsbaatar). |