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. 2013 May 11;13:99. doi: 10.1186/1471-2148-13-99

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Copyright © 2013 Stein et al.; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Inner lamella and tergites in Arthroaspis bergstroemi n. gen. n. sp. A. MGUH 30404, large individual preserving the inner lamella mirroring segmentation; A₁, close up of left side of thorax, A₂, overview of posterior thorax and pygidium, A₃, close up of pygidium. B. MGUH 30415, three individuals (numbered) with heavily wrinkled cuticle; C. MGUH 30408 posterior of specimen with pygidium draped over isolated cephalon of Buenellus higginsi, indicating relatively weakly sclerotized cuticle.