Li Mae Long

The Mae Long Formation in the Li Basin (also referred to as Li Mae Long) is a fossil site in Lamphun Province, Thailand. The fossils found are thought to date to the late Early Miocene, about 18 million years ago, corresponding to the European zone MN 4.

Fossil content
Mammals found at the site include:
 * Metatherians
 * Siamoperadectes minutus
 * Lipotyphlans
 * Hylomys engesseri
 * Neotetracus butleri
 * Thaiagymnura equilateralis
 * Unidentified Erinaceidae, possibly Mioechinus
 * Scapanulus lampounensis
 * Bats
 * Unidentified species possibly belonging to Taphozous
 * Unidentified species of Megaderma
 * Hipposideros felix
 * H. khengkao
 * Rhinolophus yongyuthsi
 * Unidentified species of Rhinolophoidea
 * Ia lanna
 * Rhizomops mengraii
 * Unidentified species of Vespertilionidae
 * Treeshrews
 * Tupaia miocenica
 * Primates
 * ?Nycticebus linglom
 * Tarsius thailandica
 * Rodents
 * Ratufa maelongensis
 * Unidentified species possibly belonging to Atlantoxerus
 * Democricetodon kaonou
 * Diatomys liensis
 * Neocometes orientalis
 * Potwarmus thailandicus
 * Prokanisamys benjavuni
 * Spanocricetodon janvieri
 * Carnivorans
 * Two unidentified species
 * Proboscideans
 * Unidentified species
 * Perissodactyls
 * Unidentified species
 * Artiodactyls
 * Conohyus sindiensis
 * Siamotragulus haripounchai
 * Stephanocemas rucha
 * Unidentified species possibly belonging to Homoiodorcas