Our fieldwork relied greatly on the logistical support of the Parque Nacional de São Joaquim, which we gratefully acknowledge. Marcelo Sabiá and Carolina Medeiros provided invaluable help by loaning additional equipment to us in the field. Pedro I. Schmitz is thanked for providing access to João Rohr's original tracings of the panels from Urubici. Helio de Rosa Miranda helped us acquire some hard-to-find articles. Jenny Watling and Graeme Earl, as well as two anonymous reviewers, provided valuable comments on earlier drafts.
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