Osbornodon iamonensis is an extinct species of hesperocyonine, a predecessor of modern dogs that were endemic to North America and which lived from the Oligocene to Early Miocene epoch 23.6—16.3 Ma and existed for approximately . It was named for Lake Iamonia in northern Florida. Fossils have been found in Florida and Nebraska.
Temporal range: Oligocene–Early Miocene
E.H. Sellards, 1916
|Approximate range of Osbornodon iamonensis based on fossil distribution|
- R. M. Nowak. 1991. Walker's Mammals of the World. Maryland, Johns Hopkins University Press (edited volume) II (K. Behrensmeyer/K. Behrensmeyer/J. Alroy)
- Wang, X. 2003. New Material of Osbornodon from the Early Hemingfordian of Nebraska and Florida. Bulletin of the American Museum of Natural History, 279:163-176.
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