A rare butterfly fossil discovered decades ago in Japan was identified as a new extinct species, according to a study published on May 2 in the journal Paleontological Research. The fossil, which had ...

Researches said the species had “remarkably large” wings and a “very thick” abdomen. Photo by Hiroaki Aiba, Yui Takahashi and Kotaro Saito (2025) For decades, an “extremely rare” fossil sat ...

For decades, an “extremely rare” fossil sat unidentified in Japan’s Museum of Unique Insect Fossils. Discovered in 1988 in Hyogo Prefecture, the imprint of a large butterfly wing and body is now ...