Lower Devonian strata from the drill cores from Poland have yielded new Heterostraci material. One ventral shield of Toombsaspis (Traquairaspididae, Phialaspidinae) discovered in the Białopole IG-1 drill core, and a fragment of dorsal shield of cf. Paraliliaspis (Cyathaspididae, Anglaspidinae) with the impressions of internal structures from Ciepielów IG-1 are described and provide new information on paleogeographic disparity of these groups.

中文翻译：

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来自波兰下泥盆纪的科和Cy科（Heterostraci）

来自波兰钻芯的下泥盆统地层产生了新的杂变材料。在BiałopoleIG-1钻芯中发现了一个Toombsaspis（Traquairaspididae，Phialaspidinae）的腹盾，以及一个cf.的背盾碎片。描述了具有CiepielówIG-1内部结构的印象的Paraliliaspis（Cyathaspididae，Anglaspidinae），并提供了有关这些群体古地理差异的新信息。