重新考察了Subpterynotus Olsson & Harbison, 1953(腹足目:鼠足科)的古生物地理学,并描述了两个来自东大西洋的新生代新种

IF 1 4区 地球科学 Q4 PALEONTOLOGY
Didier Merle , Jean-François Lesport , Daniel Ledon
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Its revision clarified its distribution in the geological record and the description of two new species, <em>S. eocaenicus</em> nov. sp. from the Bartonian of the Paris Basin and <em>S. mainotensis</em> nov. sp. from the Aquitanian of the Aquitaine Basin, increases our knowledge on the palaeobiogeography of the genus. <em>Subpterynotus eocaenicus</em> nov. sp. extends the First Appearance Datum (FAD) of the genus in the middle Eocene (early Bartonian) of Europe, whereas before it was known only in the upper Eocene (Priabonian). <em>Subpterynotus mainotensis</em> demonstrates the persistence of the genus in the Miocene (Aquitanian) of Europe. As no <em>Subpterynotus</em> is known on tropical western Atlantic coast of America prior to the Burdigalian (Chipola Formation, Florida, USA), its presence suggests an east-west dispersal. 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引用次数: 0

摘要

Subpterynotus Olsson和Harbison, 1953年,是一个复合属,其中包括几个物种,现在归属于Eofavartia Merle, 2002年和Exquisitor Merle, Garrigues和Pointier, 2022年。它的修订澄清了其在地质记录中的分布,并描述了两个新种:巴黎盆地巴尔顿期的S. eocaenicus 11 . sp.和阿基坦盆地阿基坦期的S. mainotensis 11 . sp.,增加了我们对该属古生物地理的认识。Subpterynotus eocaenicus nov. sp.扩展了该属在欧洲始新世中期(早期巴尔顿世)的首次出现基准点(FAD),而之前只在始新世上半期(Priabonian)为人所知。mainotensis亚翼龙证明了该属在欧洲中新世(阿基坦尼亚)的持久性。由于在Burdigalian (Chipola Formation, Florida, USA)之前,在美洲热带西大西洋海岸没有已知的翼龙,它的存在表明它是一个东西扩散的过程。将Subpterynotus与Eofavartia Merle(2002)和Exquisitor Merle (Garrigues and Pointier, 2022)这两个同样是嗜热分类群的古地理情景进行了比较。它与Eofavartia不同,Eofavartia从西向东向印度太平洋扩散,而Exquisitor的区域仅限于中新世的欧洲-西非(热带)省,灭绝的物种仅限于地中海-摩洛哥省南部,现存的大西洋物种。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The palaeobiogeography of Subpterynotus Olsson & Harbison, 1953 (Gastropoda: Muricidae) revisited with the description of two Cenozoic new species from Eastern Atlantic

The genus Subpterynotus Olsson and Harbison, 1953 was until very recently a composite genus in which several species, now attributed to Eofavartia Merle, 2002 and Exquisitor Merle, Garrigues and Pointier, 2022, were included. Its revision clarified its distribution in the geological record and the description of two new species, S. eocaenicus nov. sp. from the Bartonian of the Paris Basin and S. mainotensis nov. sp. from the Aquitanian of the Aquitaine Basin, increases our knowledge on the palaeobiogeography of the genus. Subpterynotus eocaenicus nov. sp. extends the First Appearance Datum (FAD) of the genus in the middle Eocene (early Bartonian) of Europe, whereas before it was known only in the upper Eocene (Priabonian). Subpterynotus mainotensis demonstrates the persistence of the genus in the Miocene (Aquitanian) of Europe. As no Subpterynotus is known on tropical western Atlantic coast of America prior to the Burdigalian (Chipola Formation, Florida, USA), its presence suggests an east-west dispersal. The palaeobiogeographic scenario of Subpterynotus is compared to those of Eofavartia Merle, 2002 and Exquisitor Merle, Garrigues and Pointier, 2022, which are also thermophilic taxa. It differs from that of Eofavartia which has a west-east dispersion towards Indo-Pacific and that of Exquisitor whose area is restricted to the Miocene European-West African (tropical) Province for the extinct species and to the south of the Mediterranean-Moroccan Province for the extant Atlantic species.

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来源期刊
Annales de Paleontologie
Annales de Paleontologie 地学-古生物学
CiteScore
1.70
自引率
10.00%
发文量
8
审稿时长
>12 weeks
期刊介绍: Créées par Marcellin Boule en 1905, les Annales de Paléontologie publient 4 numéros par an traitant des fossiles animaux et végétaux, dans tous les domaines de la paléontologie incluant : -La Paléoanatomie- La Paléohistologie- La Morphologie fonctionnelle- La Systématique- L''Évolution- La Paléoécologie ... et toute les contributions susceptibles d''améliorer la compréhension des organismes et des environnements éteints.
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