Figure 28 in Expanded concept of the milliped family Spirobolidae Diplopoda: Spirobolida: Spirobolidea): Proposals of Aztecolini n. tribe and Floridobolinae/ini and Tylobolini n. stats.; (re)descriptions of Floridobolus and F. penneri, both Causey, 1957, and F. orini n. sp.; hypotheses on origins and affinities

Figure 28. Distribution of Aztecolini plotted against Cretaceous land patterns; submerged, marine Florida terrane and approximate maximal dimensions of the Western Interior Seaway in light blue. Ap, Appalachia. AZ, Aztecolus. C, Chicobolus. L, Laramidia. SA, Presumptive Source Area in the "northern Mexican Highlands." The area encircled with brown squares is that of Tylobolini/Hiltonius/H. carpinus; the area where Aztecolus and Tylobolini/Hiltonius overlap is plausibly the source area.