Several specimens of Dickinsonia cf. D. menneri, originating from a single burial event at the Lyamtsa locality of the late Ediacaran (Vendian) in the southeastern White Sea area, Russia, represent deviations from normal morphology: a reduction in the total length of the body; the loss of portions of the body; various deformations of the transverse elements, called isomers; and splitting of the longitudinal axis with the formation of two posterior ends. It is assumed that these deformations were formed as a result of non-lethal damage, which occurred long before the burial event, and the response of Dickinsonia to them. The progress of the regeneration process at the damaged areas, and especially its deviations, indicates that the growth zone was located at the posterior end of the Dickinsonia body. The cause of non-lethal damage to Dickinsonia could not be established, but the local distribution of deformed specimens preserved in the same burial event alongside cyanobacterial colonies, and the presence of weak deformations, expressed only in shortening of the length of some isomers, lead to the conclusion that damage resulted from short episodes of physicochemical impact, rather than occasional attacks by a hypothetical macrophage.

中文翻译：

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狄金森属（埃迪卡拉晚期后生动物）的体内损伤

几个标本狄金森属参看。D.门内里，起源于俄罗斯白海东南部埃迪卡拉纪晚期（文迪安）Lyamtsa地区的一次埋葬事件，代表了与正常形态的偏差：身体总长度的减少；身体部分的损失；横向元素的各种变形，称为异构体；纵轴分裂，形成两个后端。假设这些变形是由于在埋葬事件之前很久就发生的非致命性损坏而形成的，并且响应狄金森属给他们。受损区域再生过程的进展，尤其是其偏差，表明生长区位于受损区域的后端狄金森属身体。造成非致命伤害的原因狄金森属无法确定，但在同一埋葬事件中与蓝藻菌落一起保存的变形标本的局部分布，以及仅表现为某些异构体长度缩短的弱变形的存在，得出的结论是，损伤是由短事件引起的物理化学影响，而不是假设的巨噬细胞偶尔攻击。