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Reigitheriidae
Taxonomy
Reigitheriidae was named by Bonaparte (1990).
It was assigned to Docodonta by Pascual et al. (2000); to Mammalia by Kielan-Jaworowska et al. (2004); and to Mesungulatoidea by Rougier et al. (2011), Harper et al. (2018), Püschel et al. (2025).
It was assigned to Docodonta by Pascual et al. (2000); to Mammalia by Kielan-Jaworowska et al. (2004); and to Mesungulatoidea by Rougier et al. (2011), Harper et al. (2018), Püschel et al. (2025).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1990 | Reigitheriidae Bonaparte p. 76 fig. 11 |
| 2000 | Reigitheriidae Pascual et al. p. 402 |
| 2004 | Reigitheriidae Kielan-Jaworowska et al. pp. 197, 200 |
| 2011 | Reigitheriidae Rougier et al. p. S12 |
| 2018 | Reigitheriidae Harper et al. |
| 2025 | Reigitheriidae Püschel et al. |
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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.
Fm. †Reigitheriidae Bonaparte 1990
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| H. P. Püschel et al. 2025 | Small-sized mesungulatoids with seven upper/lower postcanine teeth, instead of six as in mesungulatids. The cingulids in the lower molars are tall and hypertrophied (based on Reigitherium) and the cingula in the upper molars is generally mesially and distally reduced because of expanded preparacristae and postparacristae, presenting a lingual cingulum at the paracone base, unlike mesungulatids that show strongly developed mesial cingula and distal cingula , but lack a lingual
cingulum. Unlike mesungulatids, reigitheriids present interradicular crests linking the roots of the upper molars, a distal accessory root and an ectostyle in the last premolar and first upper molar. Reigitheriids have a variably developed median ridge connecting the paracone and the stylocone, and mesially and distally from it, marked enamel crenulations. |