File:ETRW disposition.jpg

English: Figure 3: Depositional features of the ETRW sandstone. (A) Gritty conglomerate trough cross-bed comprising coarse sand, quartzose/metamorphic gravel/grit matrix, mudrock rip-up clasts, coalified/carbonised wood fragments and vertebrate fossils. (B) Stacked, large-scale, medium- to coarse-grained sandstone and matrix supported conglomerate trough cross-beds. (C) Western-most section of excavation looking northwest, showing compacted coalified/carbonised woody debris (the partial postcranium NMV P221080 was excavated in the region immediately to the left of the log indicated). (D) Upright coalified tree stump and root-ball (dark bluish-grey mudstone) hosted by a conglomerate filled trough near the channel base, overlain by large-scale trough cross-beds of a clearer medium- to coarse-grained sandstone (lighter greenish-grey sandstone) that have buried the top of the coalified stump. Abbreviations: ctf, conglomerate trough fill; g, gravel/grit; mc, mudrock clast; rb, root-ball; tcb, trough cross-bed; tm, trough margin; ts, tree stump. Scale bars in A–B equal 0.5 m. Tree log length in C, ∼5 m.