Spider crabs (Decapoda: Brachyura: Majoidea) from the upper Eocene of south Pyrenees (Huesca, Spain)

IF 2 4区地球科学 Q1 Earth and Planetary Sciences

Palaeontologia Electronica Pub Date : 2023-01-01 DOI:10.26879/1270

F. Ferratges, J. L. Domínguez, À. Ossó, S. Zamora

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Abstract

Majoidea are one of the most plesiomorphic clades of Eubrachyura and display a huge diversity in modern ecosystems. We describe one new fossil genus and three new species including Eoparanaxia eocenica n. gen. n. sp., Planobranchia elongata n. sp., Spinirostrimaia echinata n. sp.; and one indeterminate species tentatively assigned to Macrocheira sp. from the Pamplona Marls Formation (upper Eocene, southern Pyrenees, Spain). All of them are new or first reported from the Iberian Peninsula. This shows a highly diversified fauna associated with prodelta clays that favoured preservation of decapods and other invertebrates. Cluster analyses based on Jaccard and Raup-Crick coefficients of Eocene Majidae suggest close affinities of Iberia with other European basins. Fernando A. Ferratges. Departamento de Ciencias de la Tierra-IUCA, Universidad de Zaragoza, Zaragoza E-50009, Spain. fer.afk87@gmail.es orcid.org/0000-0002-9532-6972 Josep Lluis Domínguez. Padre Manjón, 12. 50010 Zaragoza, Spain. jl.domin@hotmail.com Àlex Ossó. Llorenç de Villalonga, 17B, 1-1 43007 Tarragona, Catalonia. aosso@tinet.cat orcid.org/0000-0003-2528-9915 Samuel Zamora. Instituto Geológico y Minero de España (IGME-CSIC), Residencia CSIC, Campus Aula Dei, Av. Montañana 1005, 50059 Zaragoza, Spain. s.zamora@igme.es orcid.org/0000-0002-3917-4628

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南比利牛斯山脉始新世上部蜘蛛蟹(十足目:短肢目:大总科)

大idea是真齿纲中最具半形性的分支之一，在现代生态系统中表现出巨大的多样性。报告了Eoparanaxia eoocenica n. gen. n. sp、Planobranchia elongata n. sp、Spinirostrimaia echinata n. sp等3个新种和1个新属;1种暂定为Macrocheira sp.，来自Pamplona Marls组(上始新世，比利牛斯山脉南部)。所有这些都是伊比利亚半岛新发现的或首次报告的。这表明与前三角洲粘土相关的高度多样化的动物群有利于保存十足类动物和其他无脊椎动物。基于始新世马吉达科Jaccard和Raup-Crick系数的聚类分析表明，伊比利亚盆地与欧洲其他盆地具有密切的亲缘关系。Fernando A. Ferratges。西班牙萨拉戈萨大学，西班牙萨拉戈萨E-50009。fer.afk87@gmail.es orcid.org/0000-0002-9532-6972何塞·路易斯Domínguez。Padre Manjón, 12岁。西班牙萨拉戈萨50010号jl.domin@hotmail.com Àlex Ossó。Llorenç de Villalonga, 17B, 1- 43007塔拉戈纳，加泰罗尼亚。aosso@tinet.cat orcid.org/0000-0003-2528-9915塞缪尔·萨莫拉。Geológico y Minero de España研究所(IGME-CSIC)， Residencia CSIC, Campus Aula Dei, Av. Montañana 1005, 50059 Zaragoza，西班牙。s.zamora@igme.es orcid.org/0000 - 0002 - 3917 - 4628

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来源期刊

Palaeontologia Electronica 地学-古生物学

CiteScore

3.60

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Founded in 1997, Palaeontologia Electronica (PE) is the longest running open-access, peer-reviewed electronic journal and covers all aspects of palaeontology. PE uses an external double-blind peer review system for all manuscripts. Copyright of scientific papers is held by one of the three sponsoring professional societies at the author''s choice. Reviews, commentaries, and other material is placed in the public domain. PE papers comply with regulations for taxonomic nomenclature established in the International Code of Zoological Nomenclature and the International Code of Nomenclature for Algae, Fungi, and Plants.

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