| Zalambdalestes Temporal range: | |
|---|---|
 | |
| Zalambdalestes lechei skull and lower jaw, Museum of Evolution Warsaw. | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | incertae sedis |
| Family: | †Zalambdalestidae |
| Genus: | †Zalambdalestes Gregory & Simpson, 1926 |
| Species | |
| |
Zalambdalestes (meaning much-like-lambda robber) is an extinct genus of eutherian mammal known from the Upper Cretaceous in Mongolia.
Life restoration of Z. lechei
Zalambdalestes was a hopping animal with a long snout, long teeth, a small brain and large eyes. It was about 20 centimetres (7.9 in) long, with a head only 5 centimetres (2 in) long. It had strong front paws and even stronger rear ones, sharing specializations to saltation similar to those of modern rabbits.[1][2] It was most likely not a placental due to the presence of an epipubic bone,[3][1]
Its diet was probably composed mainly of insects that it hunted in the forest undergrowth using its sharp, interlocking teeth.[4] Unlike modern placental mammals, Zalambdalestes had an epipubic bone, meaning it was probably restricted reproductively in the same way as modern monotremes and marsupials.[1]
Life reconstruction of Z. lechei
References
- Parker, Steve. Dinosaurs: the complete guide to dinosaurs. Firefly Books Inc, 2003. Pg. 402
- 1 2 3 Rose, Kenneth D.; Archibald, J. David, eds. (2005). The Rise of Placental Mammals: Origins and Relationships of the Major Extant Clades. Johns Hopkins University Press. ISBN 9780801880223.
- ↑ Chen, Meng; Wilson, Gregory P. (2015). "A multivariate approach to infer locomotor modes in Mesozoic mammals". Paleobiology. 41 (2): 280–312. Bibcode:2015Pbio...41..280C. doi:10.1017/pab.2014.14. S2CID 86087687.
- ↑ Dykes, Kevin T. "Mesozoic Mammals; Zalambdalestidae, Lipotyphla?, Cimolestidae and Cretaceous Taeniodonta". Mesozoic Eucynodonts. Archived from the original on March 4, 2006.
- ↑ Palmer, D., ed. (1999). The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals. London: Marshall Editions. p. 201. ISBN 1-84028-152-9.
Further reading
- Wible, John R.; Novacek, Michael J.; Rougier, Guillermo W. (2004). "New data on the skull and dentition in the Mongolian Late Cretaceous eutherian mammal Zalambdalestes" (PDF). Bulletin of the American Museum of Natural History. 281: 1–144. doi:10.1206/0003-0090(2004)281<0001:NDOTSA>2.0.CO;2. hdl:2246/449. S2CID 83491778.
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