Fossilised tree fern. Polished slab cut from the fossilised trunk of an extinct Tietea singularis tree fern. This specimen measures about 300mm in dia

---

Fossilised tree fern. Polished slab cut from the fossilised trunk of an extinct Tietea singularis tree fern. This specimen measures about 300mm in diameter, and was found in the Araguaina Petrified Forest, Tocantins, Brazil.

---

Size: 5433px × 4252px
Photo credit: © DIRK WIERSMA/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: america, american, araguina, background, biological, biology, black, botanical, botany, brazil, brazlian, close-, cross, cut, detail, extinct, fern, flora, forest, fossil, fossilised, fossilized, fossils, historical, history, interior, nature, palaeobiology, palaeontological, palaeontology, paleobiology, paleontological, paleontology, palmwood, petrified, plant, plants, polished, prehistoric, prehistory, remains, section, singularis, south, structure, tietea, tocantins, tree, tree-fern, trunk, wood, wooden