Data from: Extant primitively segmented spiders have recently diversified from an ancient lineage

Xin Xu, Fengxiang Liu, Ren-Chung Cheng, Jian Chen, Xiang Xu, Zhisheng Zhang, Hirotsugu Ono, Dinh Sac Pham, Y. Norma-Rashid, Miquel A. Arnedo, Matjaž Kuntner, Daiqin Li & R.-C. Cheng
Living fossils are lineages that have retained plesiomorphic traits through long time periods. It is expected that such lineages have both originated and diversified long ago. Such expectations have recently been challenged in some textbook examples of living fossils, notably in extant cycads and coelacanths. Using a phylogenetic approach, we tested the patterns of the origin and diversification of liphistiid spiders, a clade of spiders considered to be living fossils due to their retention of...
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These counts follow the COUNTER Code of Practice, meaning that Internet robots and repeats within a certain time frame are excluded.
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