Osteology and relationships of Luxembourgichthys (“Pholidophorus”) friedeni gen. nov. (Teleostei, “Pholidophoriformes”) from the Lower Jurassic of Belgium and the Grand Duchy of Luxembourg

IF 1.2 4区地球科学 Q2 GEOLOGY

Geologica Belgica Pub Date : 2017-03-31 DOI:10.20341/GB.2017.003

L. Taverne, É. Steurbaut

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引用次数: 5

Abstract

1. IntroductionThe lower Toarcian strata of southeast Belgium and the Grand Duchy of Luxembourg, known as the Grandcourt Marls or the Grandcourt Formation, yield a rich and diverse ichthyofauna, comprising the saurichthyid Acidorhynchus Stensio, 1925, the amiiform Caturus Agassiz, 1834, the semionotid Lepidotes Agassiz, 1832, the dapediids Dapedium Leach, 1822 and Tetragonolepis Bronn, 1830, the pachycormids Sauropsis Agassiz, 1832, Pachycormus Agassiz, 1833, Saurostomus Agassiz, 1833, Euthynotus Wagner 1860 and Haasichthys Delsate, 1999, the pholidophorid Pholidophorus Agassiz, 1832 (represented by two species) and the primitive cycloid teleost Leptolepis Agassiz, 1832 (Delsate, 1999a, b).Delsate (1999c) described the new species Pholidophorus friedeni on the basis of specimens found in different Toarcian localities of the Grand Duchy of Luxembourg. He stated that this taxon was also recorded in Germany and attributed this new species to the genus Pholidophorus, although without giving any reason for his choice. Moreover, he expressed some doubts about this generic attribution. Fragmentary samples of the same species, collected in the lower Toarcian strata of Athus (southeast Belgium), are housed in the collection of the Royal Belgian Institute of Natural Sciences (Brussels), but were not studied until now. The aim of this paper is to study the osteology of “Pholidophorus” friedeni in a more detailed way than had been previously done, to discuss its generic attribution and t

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比利时和卢森堡大公国下侏罗统的Luxembourgichthys(“Pholidophorus”)friedeni gen. 11 . (Teleostei，“pholidophorformes”)的骨学和关系

1. 比利时东南部和卢森堡大公国的下陶氏地层，被称为大法庭Marls或大法庭组，生长着丰富多样的鱼类动物，包括1925年的石龙目Acidorhynchus Stensio, 1834年的amiform Caturus Agassiz, 1832年的半石龙目Lepidotes Agassiz, 1822年的dapeddium Leach和1830年的Tetragonolepis Bronn, 1832年的Pachycormus Agassiz, 1833年的Pachycormus Agassiz, 1833年的Saurostomus Agassiz，Euthynotus Wagner(1860)和Haasichthys Delsate (1999)， pholidophorid Pholidophorus Agassiz(1832)(以两个种为代表)和Leptolepis Agassiz (1832) (Delsate, 1999a, b).Delsate (1999c)根据在卢森堡大公国Toarcian不同地区发现的标本，描述了Pholidophorus friedeni新种。他说，这个分类单元在德国也有记录，并将这个新种归为Pholidophorus属，尽管他没有给出任何选择的理由。此外，他对这种一般性归因表示了一些怀疑。在阿苏斯(比利时东南部)的托瓦西亚地层下部采集的同一物种的碎片样本，被收藏在比利时皇家自然科学研究所(布鲁塞尔)的收藏中，但直到现在才被研究。本文的目的是对“Pholidophorus”friedeni的骨学进行比以往更详细的研究，讨论其属属和t

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来源期刊

Geologica Belgica 地学-地质学

CiteScore

4.70

自引率

27.80%

发文量

审稿时长

>12 weeks

期刊介绍： Geologica Belgica is a Belgian journal that welcomes papers concerning all aspects of the earth sciences, with a particular emphasis on the regional geology of Belgium, North West Europe and central Africa. Papers not dedicated to the geology of Belgium, North West Europe and central Africa are only accepted when one of the authors is linked to a Belgian University or Institution. Thematic issues are highly appreciated. In this case, guest editors take in charge the selection of the manuscripts and the subject of the papers can be enlarged. The journal is in open access. Submitted manuscripts should be concise, presenting material not previously published. The journal also encourages the publication of papers from Belgian junior authors. Short letters are accepted. Papers written in English are preferred. Each mansucript will be reviewed by at least two reviewers.