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详细描述了中国西北部新疆吐鲁番市鄯善足迹点、中侏罗统三间房组的兽脚类足迹组合。连同新发现在内,共描述了143个足迹,并阐明其不同的保存状况与额外形态变化。在足迹分类学上,这批足迹被归入石炭张北足迹(Changpeipus carbonicus),该足迹种常见于中国其他侏罗纪足迹点。前人的研究认为此地有两种不同的足迹形态,但研究表明这是由软且湿滑的基底造成的额外形态变化。足迹的结构特征亦不支持此地存在不同的足迹种。此外,对比了其他化石点类似的足迹,认为张北足迹为单型属,即模式种石炭张北足迹。鄯善足迹点的足迹长度从12.2 cm(几个孤立的样本)到47 cm,足迹应由不同年龄段的、小型至中型的同类造迹者或不同类的造迹者所留。奇异的足迹状态包括了一个滑动造成的足迹,足迹由三道平行条带构成,条带应为第II,III和IV趾所留。一个与其关联的“正常”足迹可能与该滑动足迹构成一个单步。与足迹共生的、丰富的无脊椎动物遗迹化石支持该化石点的沉积环境是一个逐步扩大和深化的湖泊。前人的研究将此地的无脊椎动物遗迹化石归入洛克迹(Lockeia),新的研究将其归入福尔斯迹(Fuersichnus),这类遗迹被归于泥食性昆虫幼虫或其他无脊椎动物所留。福尔斯迹指示的环境特征是在泥泞的河漫滩或湖泊边缘居住与/或觅食。
Described in detail in China’s northwestern Turpan, Xinjiang Shanshan footprint point, the Middle Jurassic Sanfangfang theropod footprints combination. Together with the new findings, a total of 143 footsteps were described and their different preservation status and additional morphological changes were elucidated. In footpath taxonomy, these footprints are categorized as Changpeipus carbonicus, a footprinting often found in other Jurassic footprints in China. Previous studies suggest there are two different footprints here, but studies show that this is an extra morphological change caused by a soft and slippery base. The structural features of the footprint also do not support the existence of different footprints there. In addition, compared with other similar fossil footprints, Zhangbei footprint that a single genus, that is, the pattern of carboniferous Zhang North footprint. Footprints at Foothills have a footprint of 12.2 cm (a few isolated samples) up to 47 cm. Footprints should be retained by fellow or similar creators of all ages, small to medium size. The bizarre footprint includes a sliding footprints, the footprint consists of three parallel strips, the strip should be for the II, III and IV toe left. A “normal” footprint associated with it may form a single step with the sliding footprint. The symbiotic abundance of invertebrate fossils associated with the footprint supports the depositional environment at this fossil site as a lake that is gradually expanding and deepening. Previous studies have classified invertebrate fossils in this area as Lockeia, a new study classified as Fuersichnus, which is attributed to moth-eating insect larvae or other invertebrates stay. The environmental characteristics indicated by the Falls track are to live and / or feed on muddy river floodplains or on the edge of lakes.