# Relationship of aardvark to elephants, hyraxes and sea cows from α-crystallin sequences

@article{Jong1981RelationshipOA,
title={Relationship of aardvark to elephants, hyraxes and sea cows from $\alpha$-crystallin sequences},
author={Wilfried W. de Jong and Anneke Zweers and Morris Goodman},
journal={Nature},
year={1981},
volume={292},
pages={538-540}
}
• Published 6 August 1981
• Biology
• Nature
One of the great enigmas of mammalian phylogeny is the genealogical relationship of the aardvark (Orycteropus afer), the only living representative of the order Tubulidentata. Although now generally grouped close to the ungulates and paenungulates1–4, and thought to be derived from a common condylarthran stock5–7, it still holds an isolated position among eutherian mammals. The evidence of the evolutionary relationships of the aardvark may be obscured at the morphological and anatomical level…
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