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Miocene extensional tectonics explain ancient patterns of diversification among turret‐building tarantulas (Aphonopelma mojave group) in the Mojave and Sonoran deserts

Phylogeographical studies in the Mojave and Sonoran deserts often find genetic discontinuities that pre‐date the Pleistocene. A recent synthesis of phylogeographical data, called the Mojave Assembly Model, provides a hypothesis for the historical assembly of these desert biotas but does not adequately capture the complexity of pre‐Pleistocene vicariance events. We tested this model and assessed pre‐Pleistocene divergences by exploring the phylogeography of the Aphonopelma mojave group, which is composed of turret‐building tarantula species from the Mojave and Sonoran deserts.