Protura

The Protura are an order of hexapod animals. They are sometimes called coneheads

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They were once thought to be insects, and sometimes treated as a class in their own right.

There is some evidence that the Protura are basal to all other hexapods,^[1] although the hexapods may be polyphyletic.

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[1]
Du, Shiyu; Tihelka, Erik; Yu, Daoyuan; Chen, Wan-Jun; Bu, Yun; Cai, Chenyang; Engel, Michael S.; Luan, Yun-Xia; Zhang, Feng (2024-09-24). "Revisiting the four Hexapoda classes: Protura as the sister group to all other hexapods". Proceedings of the National Academy of Sciences. 121 (39): e2408775121. doi:10.1073/pnas.2408775121. PMC 11441524.{{cite journal}}: CS1 maint: article number as page number (link)