Icaronycteris
bat
The index finger of the Izumi bat
Icaronycteris
Eocene epoch
Bats of the suborder Pterodactyla
Image of Yi Shen Bat
Bat image
Eocene bat
Extinct species
Image of the index finger of the Izumi bat
Free
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The Yishen bat is about 14 centimeters long, with wings spread up to 37 centimeters. It looks a lot like bats today, but has some primitive features. Its tail is long and not connected to its hind limbs. The first wing finger has claws and the body is relatively flexible. The Izumi bat, like many modern bats, sleeps upside down from trees or rocks. The Yishen bat is an extinct bat belonging to the suborder Pterodactyla, which lived in the early Eocene about 52.5 million years ago. Its fossils were discovered in North America. There is only one species under it, called the index finger bat.