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© Kaegen Lau

Sumatra Blue Amber (Sinamar Fm., ~30 Ma)

Barrelcactusaddict

By Barrelcactusaddict

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4.3g dark, transparent blue amber from West Sumatra. This inclusion is most likely a winged ant of the Pseudomyrmex genus, although it may possibly be a wasp. A positive identification of both winged subjects is challenging, due to their deteriorated state and their position within the piece.

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© Kaegen Lau
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Fossil Amber and Copal: Worldwide Localities

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Barrelcactusaddict

Barrelcactusaddict

Posted

Correction (May 6, 2024):

 

I would more accurately list the insects in this piece as being within the Pseudomyrmecini tribe; modern distribution of its members would possibly suggest a Tetraponera sp. rather than Pseudomeyrmex.

 

Also, after conferring with the seller of the amber itself, this material was mined from lignite deposits associated with the Gumai, Air Benakat, and Muara Enim Formations of the South Sumatra Basin: these range in age from 30-6.3 Ma.

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