A Swimming Mammaliaform from the Middle Jurassic and Ecomorphological Diversification of Early Mammals
Top Cited Papers
- 24 February 2006
- journal article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 311 (5764) , 1123-1127
- https://doi.org/10.1126/science.1123026
Abstract
A docodontan mammaliaform from the Middle Jurassic of China possesses swimming and burrowing skeletal adaptations and some dental features for aquatic feeding. It is the most primitive taxon in the mammalian lineage known to have fur and has a broad, flattened, partly scaly tail analogous to that of modern beavers. We infer that docodontans were semiaquatic, convergent to the modern platypus and many Cenozoic placentals. This fossil demonstrates that some mammaliaforms, or proximal relatives to modern mammals, developed diverse locomotory and feeding adaptations and were ecomorphologically different from the majority of generalized small terrestrial Mesozoic mammalian insectivores.Keywords
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