Translator Disclaimer
1 May 2010 Mammals from the Middle Jurassic Balabansai Formation of the Fergana Depression, Kyrgyzstan
Thomas Martin, Alexander O. Averianov
Author Affiliations +

At least 10 (or more) mammal taxa have been identified from the Middle Jurassic (Callovian) Balabansai Formation in northern Fergana Depression, Kyrgyzstan, on the basis of mostly isolated and fragmentary teeth: docodontans cf. Simpsonodon spp., Paritatodon sp. [Paritatodon, gen. nov., is established for ‘Shuotherium kermacki’ Sigogneau-Russell, 1998, from the Bathonian of England], Tashkumyrodon desideratus, Tegotheriidae indet.; and Docodonta indet.; eutriconodontans Amphilestidae indet.; Ferganodon narynensis, cf. Ferganodon sp., and Triconodontidae indet.; ‘symmetrodontan’ Tinodontidae indet.; and cladotherians Paurodontidae indet. and Amphitheriidae indet. The occurrences of Triconodontidae, Tinodontidae, and Paurodontidae in the Balabansai Formation represent the oldest-known records of these groups. The Balabansai mammal assemblage is basically similar to the Bathonian mammals of the Forest Marble in England and the Itat mammal assemblage in Siberia respectively, revealing at present knowledge a marked uniformity of the Middle Jurassic mammal fauna across Laurasia.

© 2010 by the Society of Vertebrate Paleontology
Thomas Martin and Alexander O. Averianov "Mammals from the Middle Jurassic Balabansai Formation of the Fergana Depression, Kyrgyzstan," Journal of Vertebrate Paleontology 30(3), 855-871, (1 May 2010).
Received: 13 May 2009; Accepted: 1 August 2009; Published: 1 May 2010

Get copyright permission
Back to Top