Evolution: Fossils reveal butterflies' history

The world’s largest butterfly tree of life is helping researchers determine where the winged insects originated when they first appeared on Earth about 100 million years ago.

Smithsonian Insider – Remarkable butterfly look-alike lived 50 million years before butterflies appeared

Fossil evidence reveals butterflies and moths lived 50m years earlier than thought, Zoology

Fossils reveal butterfly 'tree of life' and origins

Butterfly Fossils -Crystalinks

Oldest butterfly fossils ever discovered – DW – 01/11/2018

How butterflies conquered the world: A new 'family tree' traces their 100-million-year journey across the globe

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Prehistoric Lepidoptera - Wikipedia

Exquisite fossils show butterflies appeared before there were flowers to pollinate - The Washington Post

Butterfly Life Cycle – For Educators

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Lepidopteran - Metamorphosis, Wings, Pollination

Phylogenomics reveals the evolutionary timing and pattern of butterflies and moths

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