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Today Extinct Animal:

Asterotrygon

This image originates from Smokeybjb

Asterotrygon is an extinct genus of stingray from the Eocene Green River Formation in Wyoming. Several complete skeletons representing juveniles, adults, males and females have been uncovered from the late early Eocene Fossil Butte Member of the formation. The type and only species, A. maloneyi, was named in 2004 on the basis of these fossils. Another stingray, Heliobatis, is also known from the formation. Asterotrygon is a primitive stingray closely related to the living family Urolophidae whose ancestors likely originated in the Indo-Pacific. It lived in Fossil Lake, a body of water that existed in a subtropical mountainous region for only about 2 million years.

Source: Wikipedia

The animal will be changed at 12:00 HKT every day. Please come tomorrow to discover another extinct animal and support animal protection for free. Thank you!

BY Mytheast
Last Update: MARCH 11, 2025