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FIGURE 1. Index map of plant fossil localities of the Citronelle Formation.

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FIGURE 2. Representative Aquifoliaceae through Juglandaceae from the Citronelle Formation. 1. Ilex sp. leaf (UF 19210-062063), scale bar equals 5 mm. 2. Clethra cf. alnifolia (UF 19210-062064) partial leaf, arrow indicates mucronate tooth apex, scale bar equals 5 mm. 3. Close-up of Figure 2.2 Clethra leaf, note mixed-percurrent tertiaries, scale bar equals 2.5 mm. 4. Extant Clethra alnifolia leaf from USAM herbarium for comparison with Figure 2.2, scale bar equals 5 mm. 5. Gaylussacia sp. leaf (UF 19315-062065), scale bar equals 5 mm. 6. Extant Gaylussacia sp. from USAM herbarium for comparison with Figure 2.5, scale bar equals 5 mm. 7. Vaccinium sp. leaf (UF 19315-062066), scale bar equals 5 mm. 8. Close-up of Vaccinium leaf margin from Figure 2.7 showing teeth, scale bar equals 2.5 mm. 9. Carya fruit (UF 19315 - 062068), scale bar equals 5 mm. 10. Carya sp. catkin with in situ pollen (UF 19315 - 062067), scale bar equals 5 mm. 11. Carya sp. pollen tetrad from specimen in Figure 2.10, scale bar equals 10 µm.

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FIGURE 3. Representative Juglandaceae from the Citronelle Formation (continued). 1. Carya cf. aquatica leaflet (UF 19315-062069), scale bar equals 5 mm. 2. Epifluorescence micrograph of leaf from Figure 3.1, note peltate hairs, scale bar equals 125 µm. 3. Carya cf. tomentosa leaflet (UF 19315-062070), scale bar equals 2 cm. 4. Carya species #3 partial leaflet (UF 19210-062071), scale bar equals 5 mm. 5. Carya cf. aquatica leaf margin of Figure 3.1, scale bar equals 2.5 mm, 6. Carya cf. tomentosa leaf margin of Figure 3.2, scale bar equals 5 mm. 7. Carya species #3 of Figure 3.4 leaf margin, scale bar equals 2.5 mm.

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FIGURE 4. Representative Lauraceae from the Citronelle Formation. 1. Lindera sp. leaf (UF 19210-062072), scale bar equals 1 cm. 2. Extant Lindera leaf from USAM herbarium for comparison with Figure 4.1, scale bar equals 1 cm. 3. Persea sp. leaf (UF 19210-062073), scale bar equals 1 cm. 4. Sassafras albidum leaf (UF 19210-062074), scale bar equals 1 cm. 5. Close-up of Figure 4.1 Lindera leaf showing high order venation, scale bar equals 2.5 mm. 6. Close-up of Figure 4.3 Persea leaf showing high order venation, scale bar equals 2.5 mm.

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FIGURE 5. Representative Magnoliaceae and Oleaceae from the Citronelle Formation. 1. Liriodendron cf. tulipifera partial leaf (UF 19315-062075), scale bar equals 1 cm. 2. Close-up of Figure 5.1 Liriodendron leaf basal portion showing simple agrophic veins at arrows, scale bar equals 5 mm. 3. Magnolia cf. virginiana leaf (UF 19210-062076), scale bar equals 1 cm. 4. Close-up of Figure 5.3 Magnolia leaf showing details of fourth and fifth order veins, scale bar equals 5 mm. 5. Fraxinus sp. fruit (UF 19413-062077), scale bar equals 5 mm.

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FIGURE 6. Representative Oleaceae (continued), Platanaceae, and Roseaceae from the Citronelle Formation. 1. Fraxinus leaflet (UF 19210-062078), scale bar equals 1 cm. 2. Close-up of Figure 6.1 Fraxinus leaflet showing higher order venation, scale bar equals 5 mm. 3. Platanus occidentalis leaf (UF 19210-062079), scale bar equals 1 cm. 4. Platanus occidentalis fruit (UF 19211-062080), showing persistent style at arrow, scale bar equals 1 cm. 5. Crataegus leaf species 1 (UF19315-062081) similar to C. spatulatha, scale bar equals 5 mm. 6. Close-up of Figure 6.5 Crataegus leaf showing higher order venation, scale bar equals 2.5 mm. 7. Crataegus species #2 leaf (UF 19210-062082), wedge-shaped lamina similar to C. floridana, compare with Figure 7.1 , scale bar equals 5 mm. 8. Close-up of Figure 6.7 Crataegus leaf showing higher order venation, scale bar equals 2.5 mm.

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FIGURE 7. Representatives Rosaceae (continued), Salicaceae, Rutaceae, and Sapindaceae from the Citronelle Formation. 1. Extant Crataegus floridana from USAM herbarium for comparison with Figure 6. 7, scale bar equals 5 mm. 2. Rubus sp. leaf (UF 19413-062083), scale bar equals 5 mm. 3. Ptelea cf. trifoliata leaf (UF 19210- 062084), scale bar equals 5 mm. 4. Salix sp. leaf (UF 19210-062085), scale bar equals 1 cm. 5. Close-up of Figure 7.4 Salix leaf margin showing salicoid teeth, scale bar equals 2.5 mm. 6. Acer cf. rubrum basal portion of leaf (UF 19210-062087), scale bar equals 1 cm. 7. Acer cf. rubrum leaf (UF 19210-062086), scale bar equals 1 cm. 8. Extant Acer rubrum USAM herbarium for comparison with Figure 7.6-7, scale bar equals 1 cm.

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FIGURE 8. Representative Sapindaceae (continued), Smilicaceae, and Ulmaceae from the Citronelle Formation. 1. Acer cf. saccharinum partial leaf (UF 19315-062088), scale bar equals 1 cm. 2. Smilax sp. partial leaf (UF 19413-062089), scale bar equals 5 mm. 3. Close-up of Figure 8.2 Smilax leaf showing higher order venation details, scale bar equals 2.5 mm. 4. Ulmus sp. leaf (UF 19413-062090), scale bar equals 5 mm. 5. Close-up of Figure 8.4 Ulmus leaf showing margin details and multiple orders of teeth, scale bar equals 2.5 mm.

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