Dinosaur Era Amber with Exceedingly Rare Mayfly

Ephemeroptera (Mayfly)

Class Insecta, Order Ephemeroptera

Geological Time: Late Cretaceous, Cenomanian Stage (~100 million years ago)

Size (25.4 mm = 1 inch): Amber: 16 mm long, 10 mm across, Inclusion: 6 mm (overall)

Fossil Site: Hukawng Valley, Kachin State, Myanmar

Code: MYA12

Price: $595.00

Rare Mayfly in AmberDescription: This polished fossil amber displays a fine mayfly, a member of the order Ephemeroptera. The oldest amber containing insects comes from the deposits of Lebanon at some 135 million years of age. Deposits in Myanmar, New Jersey, and Japan are somewhat younger. the presence of mayflies is indicative of ponds and rivers in the amber forest. After living as aquatic nymphs for one to two years, they live as adults only for a few days, an ephemeral existence indeed. This one is betrayed as a female by virtue of a lack of the extended eye towers of the male. When you only have a few days as an adult, finding a member of the opposite sex to perpetuate the species is of paramount importance, any advantage would be a valuable trait.

References: AMNH Novitates, No. 3361, Mar 26, 2002.

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