Description
- Burmese Amber with Feather
- Age: Mid–Late Cretaceous, approximately 99 million years old
- Location: Hukawng Valley, Kachin State, Myanmar
- Size: Approx. 5–20 mm amber
- Includes plastic frame mount
Amber inclusions form when organisms or organic material become trapped in fresh tree resin. The resin hardens through polymerisation, first forming copal. With long-term burial and geological pressure, copal converts into amber. This process can preserve fine structural detail in three dimensions.
This specimen of Burmese amber (also known as burmite) contains a preserved feather. Burmese amber formed in resin-producing forests during the Cretaceous period. The resin is thought to have been produced mainly by coniferous trees related to modern araucarians.
The feather is interpreted as coming from a feathered theropod dinosaur or an early bird closely related to theropods. Many small theropods and early avian species in the Cretaceous possessed complex feathers. In amber, these feathers can preserve barbs, barbules, and shaft structure that are rarely visible in rock fossils.
Burmese amber is one of the oldest major amber deposits in the world and is notable for its high biodiversity and quality of preservation. It contains insects, arachnids, plants, and rare vertebrate remains, including feathers and small body fragments.
Feather inclusions from Burmese amber are uncommon and are scientifically important because they provide direct evidence of feather structure and evolution in dinosaurs and early birds during the Cretaceous period.
