Reconstructions of string-shaped structures — named Gabonionta — from the site Francevillian in Gabon; white and yellow arrows point to string-shaped specimens and microbial mats, respectively: (A) volume rendering showing the external surface of straight structures; inset (B) shows enlargement of string ending with a pyrite crystal (black arrows); (C) external surface volume rendering showing weakly sinuous string; (D) external surface volume rendering, frame denotes the position of subvertical tubes; (E) external volume transparencies of the same specimen as in D, lateral view showing the string-shaped specimens inside the host rock; frame denotes the position of subvertical tubes; (F and G) external volume transparencies of the same sample as in D and E at different heights in the sample; (H) twinned contorted strings; box denotes portion (cross-section) figured in I; (I) virtual cross-section of contorted strings, black arrow points to the precompactional deformation of silty shale laminae. Scale bars – 1 cm.作者:
fossilshk 時間: 2019-2-26 05:39 AM 標題: 研究論文下載
附件:
Organism motility in an oxygenated shallow-marine environment 2.1 billion.pdf (2019-2-26 05:39 AM, 2.55 M) / 該附件被下載次數 853 https://fossilshk.com/forum/attachment.php?aid=9617
附件:
Organism motility in an oxygenated shallow-marine environment 2.1 billion.pdf (2019-2-26 05:39 AM, 2.55 M) / 該附件被下載次數 853