A high-resolution three-dimensional reconstruction of a fossil forest (Upper Jurassic Shishugou Formation, Junggar Basin, Northwest China)

摘要: This study focuses on the three-dimensional (3D) reconstruction of an Late Jurassic fossil forest based a assemblage located in Shishugou Formation near Jiangjunmiao, north-eastern Junggar Basin, Xinjiang Uygur Autonomous Region, Northwest China. On basis tree stumps found growth position together with published data megaplant fossils, seeds and spores, high-resolution digital computer model, including different layers, was developed. In area 31,500 m², 65 diameters between 0.2 2.9 m were mapped subsequently used for 3D reconstruction. The grew under moist conditions, probably close to banks anastomosing river consisted primarily conifers, particular Araucariaceae. Even though density is only 22 trees/ha, indicates relatively closed canopy. Megaplant fossils spores also show evidence presence Angiopteris, Osmunda Coniopteris, which then reconstruct understory forest. trees modelled three stages, representing young, older mature trees, respectively. parameters individual ferns randomized order avoid duplications within Detailed textures leaves, fronds bark created give plants more realistic appearance than that previously reconstructions assemblages. Estimations net biomass (approximately 9 tons/ha), annual production calculation nearest neighbour index (0.86) suggest open spatially distributed trees.