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Jeholodens is an extinct genus of primitive mammal belonging to the order Eutriconodonta, and which lived in present-day China during the Middle Cretaceous about 125 million years ago. [ 1 ] Only one specimen has been formally described.
Fossil specimen of Jeholodens jenkinsi, National Museum of Nature and Science, Tokyo. The family Jeholodentidae is a possible eutriconodont family that was present in China around 125 million years ago during the time of the dinosaurs. There are currently two genera assigned to the family, Yanoconodon and Jeholodens. [1] [2]
However, the forelimb and shoulder anatomy of at least some species like Jeholodens are similar to those of therian mammals, though the hindlimbs remain more conservative. [4] Eutriconodonts had a modern ear anatomy, the main difference from therians being that the ear ossicles were still somewhat connected to the jaw via the Meckel's cartilage ...
This page was last edited on 14 May 2007, at 11:30 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply ...
This page was last edited on 7 September 2024, at 13:20 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
Genus †Jeholodens Luo, Chen, Li & Chen 2007; Genus †Yanoconodon Ji, Luo & Ji 1999; Family †Klameliidae Martin & Averianov 2007. Genus †Ferganodon Thomas & Averianov 2006; Genus †Klamelia Chow & Rich 1984; Family †Gobiconodontidae Chow & Rich 1984 sensu Luo, Kielan-Jaworowska & Cifelli 2002. Genus †Huasteconodon Montellano, Hopson ...
Yanoconodon was a small mammal, barely 5 inches (13 centimetres) long. It had a sprawling posture, and although previously inferred to be semi-aquatic, [6] direct study of its postcrania indicates that Yanoconodon was likely a terrestrial mammal, and that it has features in common with digging, arboreal, and semiaquatic mammals. [3]
Repenomamus (Latin: "reptile" (reptilis), "mammal" (mammalis) [2]) is a genus of opossum- to badger-sized gobiconodontid [3] mammal containing two species, Repenomamus robustus and Repenomamus giganticus.