Planetetherium

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Temporal range: 56.8–55.4 Ma
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Scientific classification Edit this classification
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Binomial name
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Simpson, 1928
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Planetetherium is an extinct genus of herbivorous plagiomenid mammal endemic to North America during the Paleogene living from 56.8 to 55.4 mya, existing for approximately 1.4 million years.[1]

Fossils have been discovered in strata formed from ancient cypress forests, suggesting that this was the animal's preferred habitat.

Morphology

Plantetherium is estimated to reach around 25 centimetres (10 in) in length, and its known materials closely resembled that of its modern relatives. Its teeth already included the comb-like structure distinctive to modern colugos. Since no postcranial materials have been described for any plagiomenid,[2] there is no direct evidence that Planetetherium had the membrane of skin that allows modern colugos to glide.[3]

References

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  1. ^ PaleoBiology Database: Planetetherium, basic info
  2. ^ Page Module:Citation/CS1/styles.css has no content.Rose, Kenneth D. (2008-01-01), "Plagiomenidae and Mixodectidae", Evolution of Tertiary Mammals of North America: Volume 2: Small Mammals, Xenarthrans, and Marine Mammals, Cambridge University Press, pp. 198–206, retrieved 2025-02-24
  3. ^ Page Module:Citation/CS1/styles.css has no content.Palmer, D., ed. (1999). The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals. London: Marshall Editions. p. 210. ISBN 1-84028-152-9.

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