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Temporal range: Late Cretaceous
Zalambdalestes lechei.jpg
Zalambdalestes lechei skull and lower jaw, Museum of Evolution Warsaw.
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Infraclass: Eutheria
Superorder: Anagalida?
Family: Zalambdalestidae
Genus: Zalambdalestes
Gregory & Simpson, 1926
  • Z. lechei Gregory & Simpson, 1926 (type)

Zalambdalestes (meaning much-like-lambda robber) was a eutherian mammal, perhaps a placental,[1] living during the Upper Cretaceous in Mongolia.

Life restoration of Zalambdalestes lechei

Zalambdalestes was a shrew-like 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, but its claws were not opposable, so it is unlikely to have climbed trees. Its diet was probably composed mainly of insects that it hunted in the forest undergrowth using its sharp, interlocking teeth.[2]



  • Parker, Steve. Dinosaurs: the complete guide to dinosaurs. Firefly Books Inc, 2003. Pg. 402
  1. ^ Dykes, Kevin T. "Mesozoic Mammals; Zalambdalestidae, Lipotyphla?, Cimolestidae and Cretaceous Taeniodonta". Mesozoic Eucynodonts.  Retrieved March 23, 2013.[dead link]
  2. ^ 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[edit]