With new fossil analyses scientists have discovered that Mesozoic Era butterfly-like insects, known as Kalligrammatid lacewings, were surprisingly similar to modern butterflies, which did not appear on Earth for another 50 million years.

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With new fossil analyses scientists have discovered that Mesozoic Era butterfly-like insects, known as Kalligrammatid lacewings, were surprisingly similar to modern butterflies, which did not appear on Earth for another 50 million years.