Evolution of trilobite enrolment during the Great Ordovician Biodiversification Event: insights from kinematic modelling

被引：18

作者：

Esteve, Jorge ^{[1
]}

Carlos Gutierrez-Marco, Juan ^{[2
]}

Rubio, Pedro ^{[3
]}

Rabano, Isabel ^{[4
]}

机构：

[1] Univ Complutense Madrid, Fac Ciencias Geol, Dept Paleontol, Jose Antonio Novais 12, Madrid 28040, Spain

[2] UCM, CSIC, Inst Geociencias, Jose Antonio Novais 12, Madrid 28040, Spain

[3] Burashi SL, Avda Ma Zambrano 24-6 B, Zaragoza 50018, Spain

[4] IGME, Museo Geominero, Rios Rosas 23, Madrid 28003, Spain

来源：

LETHAIA | 2018年 / 51卷 / 02期

关键词：

Biomechanics; Functional morphology; Arthropods; Spain; Palaeozoic; Phacopids;

D O I：

10.1111/let.12242

中图分类号：

Q91 [古生物学];

学科分类号：

0709 ; 070903 ;

摘要：

The Great Ordovician Biodiversification Event (GOBE) represents a diversification at lower taxonomic levels of most body plans that had appeared during the Cambrian explosion. Among trilobites, several novelties related to enrolment evolved during the GOBE. A kinematic analysis by means of 3D modelling of some new enrolment types shows no relationship with those of the Cambrian trilobites. While some structures emerged for the first time in Ordovician trilobites (e.g. articulations and panderian organs), other structures (e.g. anterior and posterior arch in head and tail) appear earlier in Cambrian trilobites. Our results suggest that the evolution of some groups was clearly rooted in the Cambrian explosion while others clearly appeared during the GOBE.

引用

页码：207 / 217

页数：11

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