NEW SPECIES OF THE GENUS ARBACIA (ECHINOIDEA, ARbACIIDAE) FROM THE NEOGENE OF CHILE

被引：3

作者：

Courville, Erwan ^{[1
,2
]}

Gonzalez, Melissa ^{[3
]}

Amaro Mourgues, Francisco ^{[4
]}

Poulin, Elie ^{[2
]}

Saucede, Thomas ^{[1
]}

机构：

[1] Univ Bourgogne Franche Comte, CNRS, UMR 6282, Biogeosci, 6 Blvd Gabriel, F-21000 Dijon, France

[2] Univ Chile, Fac Ciencias, Inst Milenio Ecosistemas Antarticos & Subantartic, Palmeras 3425, Santiago 7800003, Chile

[3] Paleo Andes, Paleontol Consulting & Sci Commun, Padre Hurtado 735, Vina Del Mar 2581793, Chile

[4] INCIS Fdn, Ingn & Ciencias Soc, Domingo Toro Herrera 1451, Santiago 7750144, Chile

来源：

AMEGHINIANA | 2023年 / 60卷 / 03期

关键词：

Paleobiogeography; Fossils; Echinoid; Arbacia; Chile; AMERICAN BIOTIC INTERCHANGE; BAHIA INGLESA FORMATION; PLIOCENE; CLASSIFICATION; ASSEMBLAGE; PHYLOGENY;

D O I：

10.5710/AMGH.01.03.2023.3536

中图分类号：

Q91 [古生物学];

学科分类号：

0709 ; 070903 ;

摘要：

Recent fieldwork on Neogene deposits of northern Chile led to the discovery of new material, including three new species of the echinoid genus Arbacia: Arbacia quyllur sp. nov. from the Miocene, Arbacia terraeignotae sp. nov., and Arbacia larraini sp. nov. from the Pliocene. In the Pleistocene, the new material includes the first fossil occurrence of the extant species Arbacia spatuligera and new specimens of the extant species Tetrapygyus niger. The specimens and new species described here reveal the significant past diversity of the genus Arbacia and increase our knowledge of the overall diversity of the genus in South America, showing an older origin (upper Miocene) and higher species richness of the genus Arbacia along the Chilean coasts than previously thought.

引用

页码：216 / 235

页数：20

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