A new shell-bearing organism with preserved soft tissue, Armilimax pauljamisoni n. gen. n. sp., is reported from the middle Cambrian (Miaolingian: Wuliuan) Miners Hollow locality of the Spence Shale of northern Utah. The described organism is known from a single articulated specimen and preserves a prominent shell, a slug-like body, as well as a U-shaped digestive tract. Its overall appearance is similar to halkieriids, but it does not preserve sclerites. The possible affinities of the new taxon and potential reasons for the presence of a U-shaped gut are discussed. Armilimax pauljamisoni is the first shell-bearing animal of its kind from the Great Basin and extends the diversity of body plans in the Spence Shale Fossil-Lagerstätte.

一种具有保存软组织的新型带壳生物体Armilimax pauljamisoni n。将军 n. sp.，据报道来自犹他州北部斯宾塞页岩的中寒武统（苗陵阶：五六安）Miners Hollow 地区。所描述的生物体是从单个关节标本中得知的，并保留了突出的外壳、蛞蝓状的身体以及 U 形的消化道。它的整体外观类似于halkieriids，但它不保存sclerites。讨论了新分类群的可能亲和力和 U 形肠道存在的潜在原因。Armilimax pauljamisoni是大盆地同类中的第一种带壳动物，它扩展了 Spence Shale Fossil-Lagerstätte 中身体结构的多样性。