The paper deals with the description of a new species Soligorskopterus shpinevi, which was found in Upper Devonian deposits cropped out in the Mikhailovsky quarry (the City of Zheleznogorsk, Kursk region, Russia). The new species is based on the single although practically complete specimen visible from its abdominal side. The new species is characterized by following features: (1) widest part of the body is disposed in area of second/third sternites, the L/W ratio of prosoma is about 0.7; (2) compound eyes are crescentic, with rounded ends; (3) the ocelli are small, of ovoid shape, orientated along the prosoma, diverge towards anterior direction; (4) the ocellar area anteriory two-lobed, heart-like; (5) the metastoma of prolonged shape, with parallel lateral margins, straight posterior margin and round anterior margin; (6) the length of sternites is more or less equal; (7) the basal part of the telson is broad subtriangular. The upper Devonian deposits of the studied area show a distinctly regressive trend, which ended in complete change of the shallow water lagoon deposits by interruption of sedimentation up to the Jurassic time. This trend corresponds well to the “terrestrialisation” of the late Devonian environments, which could be also reflected in developing of “walking” of some of the Devonian eurypterids in contrast to less evolutionary advanced representatives of this group.

中文翻译：

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来自俄罗斯库尔斯克地区上泥盆统的类固龙的新代表

本文介绍了一个新物种Soligorskopterus shpinevi的描述。是在Mikhailovsky采石场（俄罗斯库尔斯克地区热列兹诺戈尔斯克市）种植的上泥盆纪沉积物中发现的。新物种基于从腹侧可见的单个但实际上完整的标本。新物种具有以下特征：（1）身体的最宽部位位于第二/第三片区域，前体的长宽比约为0.7；（2）复眼为新月形，末端为圆形；（3）眼小，呈卵形，沿假体定向，朝前方向发散；（4）眼睑区前叶二裂，心状；（5）转移瘤形状长，侧缘平行，后缘笔直，前缘圆形；（6）石的长度大致相等；（7）telson的基础部分是宽三角形的。研究区的上泥盆纪沉积物表现出明显的回归趋势，最终由于中断侏罗纪时期的沉积而使浅水泻湖沉积物完全改变。这种趋势与泥盆纪晚期环境的“陆生化”非常吻合，这也可能反映在某些泥盆纪珊瑚虫的“走动”发展中，而不是该群体的进化论较先进的代表。