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广西田东县作登下三叠统罗楼组产出弓鲛鱼类 :作登弓鲛Hyboduszuodengensis(Yangetal.)、乐氏弓鲛H .yohi (Yangetal.)和田东多尖齿鱼 (新种 )Polyacrodustiandongensissp .nov .,其中前二种化石以前曾被作为牙形类报道。这是弓鲛鱼类在中国海相早三叠世的首次报道。另外 ,本组还产出属种未定的硬骨鱼类化石 (Osteichthyesgen .etsp .indet.)。建立了我国海相早三叠世第一个鱼类带化石 ,作登弓鲛—乐氏弓鲛组合带 (Hyboduszuodengensis H .yohiAZ) ;伴生的有Neospathodushomeri N .triangularis牙形类带化石 ,该带化石延续的时限为奥伦尼克阶 (Olenekian)司帕斯期 (Spathian)早期。
In Tiandong County, Guangxi, the Triassic Luolu Formation developed a series of bream fish: Hyboduszuodengensis (Yangetal.), H. yohi (Yangetal.) And Tiaodong ) Polyacrodustiandongensissp .nov., Of which the first two fossils have been previously reported as teratops. This is the first report of bowfish in the Early Triassic of China’s marine facies. In addition, the group also produced an undetermined species of bony fossil fish (Osteichthyesgen.etsp .indet.). The first Triassic fish-belt fossil in China was established as Hyboduszuodengensis H.yohiAZ (Neobadus tomentosae H.yohiAZ) with associated Neospathodushomeri Ntriangularis tectonic fossils, The duration of the fossil extension is the Olenekian Spathian period.