西班牙始新世一新的深海蜘蛛类棘刺类的系统学和系统发育解释:Habanaster itzae 11 . sp .

IF 1.6 4区地球科学 Q2 PALEONTOLOGY Geobios Pub Date : 2022-08-01 DOI:10.1016/j.geobios.2022.07.005

Loïc Villier , Joxeba Larrañaga , Aitor Payros , Txema Moreno , Nathan Hieu , Samuel Zamora

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引用次数: 1

摘要

在西比利牛斯山(西班牙潘普洛纳盆地)描述了一种新的刺毛虫属。Habanaster itzae nov. sp.的定义是基于从Anotz组的Lutetian水平(始新世中期)收集的16个保存完好的标本。这些水平被解释为在低能量、半深海条件下沉积的。Habanaster itzae十一月sp比以前已知的单一加勒比物种H. sanchezi更古老，后者出现在Consuelo和Jabaco地层的Priabonian(晚始新世)水平。系统发育分析将哈巴纳斯特归入卵形蕨科。这个家族是一个进化分支的一部分，包括Aeropsidae，它聚集了适应近海或深海泥泞环境的微鳍蛛形体。

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Systematics and phylogenetic interpretation of a new bathyal spatangoid echinoid from the Eocene of Spain: Habanaster itzae nov. sp

A new echinoid belonging to the genus Habanaster is described from the Western Pyrenees (Pamplona basin, Spain). Definition of Habanaster itzae nov. sp. is based on 16 well-preserved specimens that were collected from Lutetian levels (middle Eocene) of the Anotz Formation. These levels have been interpreted as deposited in low energy, hemipelagic conditions. Habanaster itzae nov. sp. is older than the single formerly known Caribbean species H. sanchezi that occurs in Priabonian (late Eocene) levels from the Consuelo and Jabaco formations. A phylogenetic analysis places Habanaster among the Ovulasteridae. The family is part of a clade, including also the Aeropsidae, that gathers micrasterid spatangoids adapted to offshore or bathyal muddy environments.

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来源期刊

Geobios 地学-古生物学

CiteScore

3.30

自引率

6.20%

发文量

审稿时长

6-12 weeks

期刊介绍： Geobios publishes bimonthly in English original peer-reviewed articles of international interest in any area of paleontology, paleobiology, paleoecology, paleobiogeography, (bio)stratigraphy and biogeochemistry. All taxonomic groups are treated, including microfossils, invertebrates, plants, vertebrates and ichnofossils. Geobios welcomes descriptive papers based on original material (e.g. large Systematic Paleontology works), as well as more analytically and/or methodologically oriented papers, provided they offer strong and significant biochronological/biostratigraphical, paleobiogeographical, paleobiological and/or phylogenetic new insights and perspectices. A high priority level is given to synchronic and/or diachronic studies based on multi- or inter-disciplinary approaches mixing various fields of Earth and Life Sciences. Works based on extant data are also considered, provided they offer significant insights into geological-time studies.