Temporal range: Early Miocene to Middle Pleistocene
Hypolagus is an extinct genus of Lagomorpha, first recorded in the Hemingfordian (early to middle Miocene) of North America. It entered Asia during the early Turolian and spread to Europe not much later, where it survived until the Middle Pleistocene. Though unknown in the Iberian Peninsula, fossils of this genus have been found in the Balearic Islands, suggesting an eastern migration during the dry period in the Mediterranean region known as the Messinian Salinity Crisis.
- H. balearicus - Early Pliocene, Mallorca and possibly Ibiza
- H. petenyii (= H. beremendensis) - Early Pliocene to Early Pleistocene, Europe
- H. brachygnathus - Late Pliocene to Middle Pleistocene, Europe
- H. gromovi - Late Turolian to Early Ruscinian, Caucasus region
- H. multiplicatus - Late Pliocene to Early Pleistocene, Baikal region
- H. peregrinus - Early Pleistocene, Sicily
- H. schreuderae - Late Pliocene to Early Pleistocene, China
- H. transbaicalicus - Late Pliocene to Early Pleistocene, Baikal region
- H. vetus - Late Miocene, North America 
- Quintana et al. (2010) "Presence of Hypolagus Dice, 1917 (Mammalia, Lagomorpha) in the Neogene of the Balearic Islands (Western Mediterranean): Description of Hypolagus balearicus nov. sp.". Geobios 43, 555-567
- Čermák S. (2009). The Plio-Pleistocene record of Hypolagus (Lagomorpha, Leporidae) from the Czech and Slovak Republics with comments on systematics and classification of the genus. Bulletin of Geosciences, 84 (3): 497-524.
- William W. Korth;Donald D. De Blieux. (2010). "Rodents and Lagomorphs (Mammalia) from the Hemphillian (Late Miocene) of Utah". Journal of Vertebrate Paleontology 30 (1): 226–235.
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