A new clupeoid genus from the Oligocene of Central Paratethys (Menilite Formation, Poland)

IF 1.1 4区 地球科学 Q3 GEOLOGY Acta Geologica Polonica Pub Date : 2024-02-01 DOI:10.24425/agp.2023.148029
Mateusz Granica, M. Bieńkowska-Wasiluk, Marcin Pałdyna
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Abstract

The Suborder Clupeoidei Bleeker, 1859 comprises mostly marine fishes, which form large schools feeding on plankton. The fossil record of the suborder in the Late Paleogene reveals that clupeoids were abundant in the Western, Central, as well as Eastern Paratethys. Clupeoid descriptions from the Polish Outer Carpathians (SE Poland, Central Paratethys) remain incomplete due to usage of ‘collective species’, taxonomical inaccuracies, and lack of clear links between extinct and extant representatives. In this paper we present a new clupeoid, † Beksinskiella gen. nov., from the Oligocene of the Outer Carpathians, Poland. The new genus encompasses the nominal species † Maicopiella longimana (Heckel, 1850). † Beksinskiella gen. nov. has a unique combination of characters (skull roof with frontoparietal striae; smooth opercle; 6–7 branchiostegal rays; 42–48 vertebrae; dorsal and anal fins with 21–23 rays; the last two rays of the anal fin being elongated, and the presence of a complete series of abdominal scutes with the postpelvic ones poorly developed), supporting recognition of a new genus of the Suborder Clupeoidei. Similarities and differences between fossil and extant genera of Cluepoidei are discussed to shed light on their relationship.
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中帕拉特提斯渐新世(波兰梅尼利特地层)新发现的一个蝶形花属
Clupeoidei Bleeker, 1859 亚目主要由以浮游生物为食的大群海洋鱼类组成。该亚目在古近纪晚期的化石记录显示,Clupeoids 在帕拉泰西西部、中部和东部都很丰富。波兰外喀尔巴阡山脉(波兰东南部,中帕拉泰西)的瓣鳃亚目描述仍然不完整,原因是使用了 "集合物种",分类不准确,以及在已灭绝和现存代表之间缺乏明确的联系。本文介绍了波兰外喀尔巴阡山脉渐新世的一种新的瓣鳃纲动物--† Beksinskiella gen.该新属包含了标称种 † Maicopiella longimana (Heckel, 1850)。Beksinskiella gen. nov.具有独特的特征组合(颅顶具有前顶叶条纹;厣光滑;6-7 根肋骨支突;42-48 个椎骨;背鳍和臀鳍具有 21-23 根鳍突;臀鳍的最后两根鳍突被拉长;腹部具有完整的鳞片,但后鳞片发育不良),支持将其认定为 Clupeoidei 亚目中的一个新属。本文讨论了Cluepoidei化石属和现生属之间的异同,以阐明它们之间的关系。
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来源期刊
Acta Geologica Polonica
Acta Geologica Polonica 地学-地质学
CiteScore
1.70
自引率
18.20%
发文量
0
审稿时长
>12 weeks
期刊介绍: Acta Geologica Polonica publishes original and review papers on all aspects of basic geology, with particular focus on sedimentology, stratigraphy, palaeontology, regional geology, structural geology, and regional petrography. All papers are published in English.
期刊最新文献
Upper Cretaceous contourites from northwestern Poland in the vicinity of the Szamotuły salt diapir 150000 On the status of Pecten burdigalensis Lamarck var. polonica Pusch, 1837 (Bivalvia: Pectinidae) Martes wenzensis Stach, 1959 within the early history of the genus Martes Pinel, 1792 A new clupeoid genus from the Oligocene of Central Paratethys (Menilite Formation, Poland)
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