FJD ZIM 31. Rhexoxylon. A rare Triassic tree fern from Zimbabwe. Solid full round with a complete array of well-preserved structures. This slice appears in Ancient Forests on page 123. Glassy. 18 by 23 cm polished face; 15 mm thick; two pounds and eleven ounces. $500
FJD ZIM 32. Museum specimen. Rhexoxylon. A rare Triassic tree fern from Zimbabwe, formerly known as Rhodesia. Stunning patterns and colors make this extra large full round a standout. Well preserved cell structures with tiny tracheids. This slice has a full page in Ancient Forests on page 121. Glassy 36 by 22 cm polished face; 15 mm thick; six pounds and two ounces. $2000