Abstract
Ferganodonnarynensis gen. et sp. nov. is represented by a lower molariform tooth from the Middle Jurassic (Callovian) Balabansai Svita in Kyrgyzstan. The new genus is allied with Klamelia zhaopengi Chow and Rich 1984 from the Middle Jurassic Shishugou Formation in Xinjiang, northwest China to the new family Klameliidae based on parallelogram-shaped lower molariforms, imbricating rather than interlocking of cusps e-d-f, by a peculiar distolabial cingulid cusp, and by vertical folding of the enamel on the labial crown side. The new family Klameliidae fam. nov. is most similar to Gobiconodontidae by the structure of the molariform teeth and represents a previously unrecognized radiation of eutriconodontan mammals possibly endemic to Central Asia.
References
Averianov AO, Martin T, Bakirov A (2005) Pterosaur and dinosaur remains from the Middle Jurassic Balabansai Svita in northern Fergana Depression, Kyrgyzstan (Central Asia). Palaeontology 48:135–155
Chow M-C, Rich THV (1984) A new triconodontan (Mammalia) from the Jurassic of China. J Vertebr Paleontol 3:226–231
Clark JM, Xu X, Forster CA, Wang Y, Eberth DA (2004) New discoveries from the Middle-to-Upper Jurassic Shishigou Formation, Xinjiang, China. J Vertebr Paleontol 24:46A
Cuenca-Bescos G, Canudo JI (2003) A new gobiconodontid mammal from the Early Cretaceous of Spain and its palaeogeographic implications. Acta Palaeontol Pol 48:575–582
Dong Z-M (1994) The field activities of the Sino-Canadian dinosaur project in China, 1987–1990. Can J Earth Sci 30:1997–2001
Eberth DA, Brinkman DB, Chen P-J, Yuan F-T, Wu S-Z, Li G, Cheng X-S (2001) Sequence stratigraphy, paleoclimate patterns, and vertebrate fossil preservation in Jurassic–Cretaceous strata of the Junggar Basin, Xinjiang Autonomous Region, People’s Republic of China. Can J Earth Sci 38:1627–1644
Fox RC, Naylor BG (2006) Stagodontid marsupials from the Late Cretaceous of Canada and their systematic and functional implications. Acta Palaeontol Pol 51:13–36
Hu Y-M, Meng J, Wang Y-Q, Li C-K (2005) Large Mesozoic mammals fed on young dinosaurs. Nature 433:149–152
Jenkins FA, Schaff CR (1988) The Early Cretaceous mammal Gobiconodon (Mammalia, Triconodonta) from the Cloverly Formation in Montana. J Vertebr Paleontol 8:1–24
Kermack KA, Mussett F, Rigney HW (1973) The lower jaw of Morganucodon. Zool J Linn Soc 53:87–175
Kielan-Jaworowska Z, Dashzeveg D (1998). Early Cretaceous amphilestid (“triconodont”) mammals from Mongolia. Acta Palaeontol Pol 43:413–438
Kielan-Jaworowska Z, Cifelli RL, Luo Z-X (2004) Mammals from the age of dinosaurs: origins, evolution, and structure. Columbia University Press, New York, p 630
Li C-K, Wang Y-Q, Hu Y-M, Meng J (2003) A new species of Gobiconodon (Triconodonta, Mammalia) and its implication for the age of Jehol Biota. Chin Sci Bull 48:1129–1134
Linnaeus C (1758) Systema naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. vol. 1: Regnum animale. Editio decima, reformata. Laurentii Salvii, Stockholm, p 824
Maisch MW, Matzke AT, Grossmann F, Stöhr H, Pfretzschner H-U, Sun G (2005) The first haramiyoid mammal from Asia. Naturwissenschaften 92:40–44
Martin T, Averianov AO (2004) A new docodont (Mammalia) from the Middle Jurassic of Kyrgyzstan, Central Asia. J Vertebr Paleontol 24:195–201
Maschenko EN, Lopatin AV (1998) First record of an Early Cretaceous triconodont mammal in Siberia. Bull Inst R Sci Nat Belg Sci Terre 68:233–236
Meng J, Hu Y-M, Wang Y-Q, Li C-K (2005) A new tricondont (Mammalia) from the Early Cretaceous Yixian Formation of Liaoning, China. Vertebr PalAsiat 43:1–10
Minjin B, Chuluun M, Geisler JH (2003) A report of triconodont mammal jaw from Oosh, an Early Cretaceous locality in Mongolia. Publ Mongol Univ Sci Technol Inst Geol Ser Geol 9:89–93
Minjin B, Rougier GW, Chuluun M, Geisler JH (2004) New Early Cretaceous gobiconodont mammal from Oshish, Mongolia. J Vertebr Paleontol 24:94A–95A
Pfretzschner H-U, Martin T, Maisch MW, Matzke AT, Sun G (2005) A new docodont mammal from the Late Jurassic of the Junggar Basin in Northwest China. Acta Palaeontol Pol 50:799–808
Rougier GW, Novacek MJ, McKenna MC, Wible JR (2001) Gobiconodonts from the Early Cretaceous of Oshih (Ashile), Mongolia. Am Mus Novit 3348:1–30
Trofimov BA (1978) Pervye trikonodonty (Mammalia, Triconodonta) iz Mongolii [The first triconodonts (Mammalia, Triconodonta) from Mongolia]. Dokl Akad Nauk SSSR 243:213–216
Wang Y, Hu Y-M, Meng J, Li C-K (2001) An ossified Meckel’s cartilage in two Cretaceous mammals and the origin of the mammalian middle ear. Science 294:357–361
Zhang F (1984) Fossil record of Mesozoic mammals of China. Vertebr PalAsiat 22:29–38
Acknowledgements
Field work in Kyrgyzstan in 2000–2003 was carried out in cooperation with the M. M. Adyshev Institute of Geology of the National Academy of Sciences of the Kyrgyz Republic. The former director of this institute, Prof. Apas A. Bakirov (Bishkek) is thanked for his support. Zhe-Xi Luo and two anonymous reviewers provided valuable comments. Wolfgang Müller (Freie Universität Berlin) and Katrin Krohmann (Forschungsinstitut Senckenberg, Frankfurt am Main) assisted in the SEM. This project was funded by the Deutsche Forschungsgemeinschaft (DFG; Ma 1643/8 and 436 RUS 113/602/0-1-2). The work of TM was additionally supported by a Heisenberg grant (DFG) and the work of AA by a Russian Fund of Basic Research (RFBR) grant 04-04-49113, President’s of Russia grant MD-255.2003.04, and the Russian Science Support Foundation.
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Martin, T., Averianov, A.O. A previously unrecognized group of Middle Jurassic triconodontan mammals from Central Asia. Naturwissenschaften 94, 43–48 (2007). https://doi.org/10.1007/s00114-006-0155-5
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DOI: https://doi.org/10.1007/s00114-006-0155-5