Laonastes and the "Lazarus Effect" in Recent Mammals

@article{Dawson2006LaonastesAT,
  title={Laonastes and the "Lazarus Effect" in Recent Mammals},
  author={Mary R. Dawson and Laurent Marivaux and Chuan-Kui Li and K. Christopher Beard and Gr{\'e}goire M{\'e}tais},
  journal={Science},
  year={2006},
  volume={311},
  pages={1456 - 1458}
}
The living Laotian rodent Laonastes aenigmamus, first described in early 2005, has been interpreted as the sole member of the new family Laonastidae on the basis of its distinctive morphology and apparent phylogenetic isolation from other living rodents. Here we show that Laonastes is actually a surviving member of the otherwise extinct rodent family Diatomyidae, known from early Oligocene to late Miocene sites in Pakistan, India, Thailand, China, and Japan. Laonastes is a particularly striking… Expand
First diatomyid rodent from the Early Miocene of Arabia
The Asian family Diatomyidae is known from the Early Oligocene to the present. Among living rodents, this group comprises only the recently discovered Laonastes aenigmamus from Laos. FossilExpand
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The epitensoric chorda tympani of Laonastes aenigmamus (Rodentia, Diatomyidae) and its phylogenetic implications
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A large-scale molecular phylogeny of rodents found that Laonastes and Diatomyidae are the sister clade of extant Ctenodactylidae and do not belong to the Hystricognathi, and alternative hypotheses were significantly rejected based on Shimodaira–Hasegawa tests. Expand
A Remarkable Case of Micro-Endemism in Laonastes aenigmamus (Diatomyidae, Rodentia) Revealed by Nuclear and Mitochondrial DNA Sequence Data
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The results suggest that L. aenigmamus may represent a complex of species and/or sub-species and an inland insular model for Laonastes population structure, and increases the necessity for a strict protection of this rare animal and its habitat. Expand
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The incomplete record of this new taxon as well as its morphology cannot answer the question of whether this taxon is allied to such later appearing strongly bilophodont rodents as diatomyids and pedetids, or is an early experiment of this striking morphological development that left no successors. Expand
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Range: early Oligocene to Recent, Asia. Diagnosis: rodents having hystricomorphous infraorbital foramen and sciurognathous mandible
  • Current content: type genus Diatomys (3), Fallomus (4), Willmus (10), and Laonastes