Origin of the arthropod mandible

Cambrian bivalved arthropod reveals origin of arthrodization.

Extant arthropods are diverse and ubiquitous, forming a major constituent of most modern ecosystems. Evidence from early Palaeozoic Konservat Lagerstätten indicates that this has been the case since the Cambrian. Despite this, the details of arthropod origins remain obscure, although most hypotheses regard the first arthropods as benthic predators or scavengers such as the fuxianhuiids or megac...

Evolution of the entire arthropod Hox gene set predated the origin and radiation of the onychophoran/arthropod clade

BACKGROUND Dramatic changes in body size and pattern occurred during the radiation of many taxa in the Cambrian, and these changes are best documented for the arthropods. The sudden appearance of such diverse body plans raises the fundamental question of when the genes and the developmental control systems that regulate these designs evolved. As Hox genes regulate arthropod body patterns, the e...

New Guinea highland origin of a widespread arthropod

Supplementary data tml http://rspb.royalsocietypublishing.org/content/suppl/2009/03/30/rspb.2009.0015.DC1.h "Data Supplement" References http://rspb.royalsocietypublishing.org/content/276/1666/2359.full.html#ref-list-1 This article cites 41 articles, 12 of which can be accessed free Subject collections (725 articles) evolution • (624 articles) ecology • (96 articles) taxonomy and systematics ...

Origin and evolution of arthropod visual systems. Introduction.

New Guinea highland origin of a widespread arthropod supertramp.

The biologically and geologically extremely diverse archipelagos of Wallacea, Australasia and Oceania have long stimulated ecologists and evolutionary biologists. Yet, few molecular phylogenetic analyses of the terrestrial fauna have been carried out to understand the evolutionary patterns. We use dense taxon and character sampling of more than 7000 bp DNA sequence data for a group of diving be...