Revision of the genus Protaxius (Decapoda, Axiidea, Axiidae), with description of a new species from the Lower Cretaceous of west- central Argentina

被引：3

作者：

Andrada, A. Mariel ^{[1
]}

Lazo, Dario G. ^{[1
,2
]}

Bressan, Graciela S. ^{[1
,2
]}

Aguirre-Urreta, M. Beatriz ^{[1
,2
]}

机构：

[1] Univ Buenos Aires, Inst Estudios Andinos Don Pablo Groeber, Dept Ciencias Geol, Fac Ciencias Exactas & Nat, Pabellon II,Ciudad Univ,C1428EGA, Buenos Aires, DF, Argentina

[2] Consejo Nacl Invest Cient & Tecn, CONICET, Godoy Cruz 2290,C1425FQB, Buenos Aires, DF, Argentina

来源：

CRETACEOUS RESEARCH | 2022年 / 130卷

关键词：

Axiid shrimps; Hauterivian; Etallonia; Neuque; n Basin; Agrio Formation; AMMONITE WORKING GROUP; NEUQUEN BASIN; AGRIO FORMATION; CRUSTACEA; CALLIANASSIDAE; TAPHONOMY; THALASSINIDEA; FACIES; GENERA; EOCENE;

D O I：

10.1016/j.cretres.2021.105053

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

A new species of Protaxius Beurlen, P. paucisaetosus sp. nov., is erected on the basis of 40 specimens from a single stratigraphic level within the Agrio Formation (lower Hauterivian) in the Neuque = n Basin. Specimen preservation varies from isolated chelae to complete exoskeletons, all invariably enclosed in concretions. Since the genus Protaxius had previously been interpreted as a junior subjective synonym of Etallonia Oppel, we have revised the type material of all the species assigned to Protaxius so as to assess this proposal; we here reject this and consider Protaxius to be distinct. Previous records of species of Protaxius are from the Upper Jurassic of Europe and Japan, making the present record not only the first from the Southern Hemisphere, but also the first report of the genus from the Cretaceous, extending its stratigraphical range. (c) 2021 Elsevier Ltd. All rights reserved.

引用

页数：14

共 103 条

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