Paleozoic and modern insect faunas
The end-Permian event can be thought of as a gradual “eclipse” for insects rather than a sudden mass extinction. The transition between the Paleozoic Insect Fauna and the Modern Insect Fauna was the biggest evolutionary shakeup in insect history, but it occurred over the course of tens of millions of years. (Image originally published in Schachat and Labandeira 2021, Annals of the Entomological Society of America. All icons are from PhyloPic.org. Mantoida nitida Newman, public domain. Petrobius brevistylis Carpenter by Birgit Lang; Somatochlora tenebrosa Say by Gareth Monger; Palomena prasina (L.) by Dave Angelini; and Trachypachus gibbsii Leconte by T. Michael Keesey and Yves Bousquet, CC BY 3.0.)