Evolutionary History of Terrestrial Pathogens and Endoparasites as Revealed in Fossils and Subfossils

<table>Spirochetes (arrows) within the chelicerial sheath and surrounding the hypostome of a larval<i> Ambylomma</i> tick in Dominican amber similar to the one shown in Figure <a href="../fig12/">12</a>. Scale bar = 16 <i>μ</i>m.</table>

Advances in Biology

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Figure 13

Figure 13: Evolutionary History of Terrestrial Pathogens and Endoparasites as Revealed in Fossils and Subfossils 