J. Wallaard, René H. B. Fraaije, Henk J. Diependaal, J. Jagt
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引用次数: 6
Abstract
Abstract On the basis of dissociated and scattered skull bones and several types of scutes and scales of a single, large-sized individual, a new species of dercetid is recorded from the lower to middle portion of the Maastricht Formation (upper Gronsveld, Schiepersberg or Emael members) as formerly exposed at ’t Rooth quarry near Bemelen, east of Maastricht, the Netherlands. This new taxon, Pelargorhynchus grandis n. sp., the fifth dercetid recorded to date from the type area of the Maastrichtian Stage, is characterised by the presence of both large, smooth scutes and small ornamented scales, by the degree of curvature of skull bones, the presence of unfused premaxillae and the lack of teeth.
摘要根据一个大型个体的分离和分散的颅骨和几种类型的鳞片和鳞片,从马斯特里赫特组的中下部(上Gronsveld, Schiepersberg或Emael成员)记录了一个新的dercetid物种,该物种以前在荷兰马斯特里赫特东部Bemelen附近的' t Rooth采石场暴露。这个新的分类群,Pelargorhynchus grandis n. sp.,是迄今为止在马甲阶段模式区记录到的第五种兽类,其特征是既有大而光滑的鳞片,又有小的装饰鳞片,头骨的弯曲程度,未融合的前颌的存在和没有牙齿。
期刊介绍:
Netherlands Journal of Geosciences - Geologie en Mijnbouw is a fully open access journal which publishes papers on all aspects of geoscience, providing they are of international interest and quality. As the official publication of the ''Netherlands Journal of Geosciences'' Foundation the journal publishes new and significant research in geosciences with a regional focus on the Netherlands, the North Sea region and relevant adjacent areas. A wide range of topics within the geosciences are covered in the journal, including "geology, physical geography, geophyics, (geo-)archeology, paleontology, hydro(geo)logy, hydrocarbon exploration, modelling and visualisation."
The journal is a continuation of Geologie and Mijnbouw (published by the Royal Geological and Mining Society of the Netherlands, KNGMG) and Mededelingen Nederlands Instituut voor Toegepaste Geowetenschappen (published by TNO Geological Survey of the Netherlands). The journal is published in full colour.