Xystridura is a genus of redlichiid trilobite described originally from the Middle Cambrian (Miaolingian) strata of Queensland, Australia. The genus ranges upwards from Ordian into Florian Stages in terms of Australian Cambrian stratigraphic nomenclature.
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木耙蟲（學名：Xystridura），又名耙形蟲，是生存於寒武紀的一屬三葉蟲，生活在海底沉積物之上。這類三葉蟲的外形呈寬橢圓形。其頭部的寬度為身長的兩倍，有很深的溝狀眉間及大型的眼睛。頰部的角延伸成短的棘。胸部分成13節，中軸線比眉間溝槽的側板裂片要窄的多。尾甲上有溝槽，前緣處長有棘。
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).