Siamoadapis is an extinct genus of adapiform primate. Remains of its only known species, Siamoadapis maemohensis, were found in Thailand.

Siamoadapis
Temporal range: Middle Miocene
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Primates
Suborder: Strepsirrhini
Family: Sivaladapidae
Genus: Siamoadapis
Chaimanee et al., 2007
Species:
S. maemohensis
Binomial name
Siamoadapis maemohensis
Chaimanee et al., 2007

The fossils were discovered in the lignite layer of a coal mine in Mae Mo district, Lampang Province, northern Thailand, from which it also received its scientific species name. Four lower jaws with teeth were unearthed by a joint team of Thai and French geologists in 2004. It was dated to be 13.1 to 13.3 million years old, and described in 2007 by a team led by geologist Yaowalak Chaimanee (เยาวลักษณ์ ชัยมณี) from the Department of Mineral Resources, Thailand.

The animal was a very small primate, with a body length of 15 centimetres and estimated to have weighted 500 grams. Distinct for the species is the small size and differences in dentition compared to other Miocene sivaladapids.

References

edit
  • "Fossil dated 13m years". The Nation. February 26, 2008. Archived from the original on February 27, 2008.
  • Chaimanee, Y.; Yamee, C.; Tian, P.; Chavasseau, O. & Jaeger, J.-J. (2008). "First middle Miocene sivaladapid primate from Thailand". Journal of Human Evolution. 54 (3): 434–443. Bibcode:2008JHumE..54..434C. doi:10.1016/j.jhevol.2007.10.001. PMID 18022213.