The lower Cambrian lobopodian Cardiodictyon resolves the origin of euarthropod brains

The enteric nervous system of the C. elegans pharynx is specified by the Sine oculis-like homeobox gene ceh-34

(2022) Berta Vidal et al.   eLife

Evolution: The arthropod brain — a saga in three parts

(2022) Jakob Vinther   CURRENT BIOLOGY

The origin and evolution of the euarthropod labrum

(2021) Graham E. Budd   ARTHROPOD STRUCTURE & DEVELOPMENT

Molecular topography of an entire nervous system

(2021) Seth R. Taylor et al.   CELL

Leanchoiliidae reveals the ancestral organization of the stem euarthropod brain

(2021) Tian Lan et al.   CURRENT BIOLOGY

Development of the Pre-gnathal Segments in the Milkweed Bug Oncopeltus fasciatus Suggests They Are Not Serial Homologs of Trunk Segments

(2021) Oren Lev et al.   Frontiers in Cell and Developmental Biology

six3 acts upstream of foxQ2 in labrum and neural development in the spider Parasteatoda tepidariorum

(2020) Magdalena Ines Schacht et al.   DEVELOPMENT GENES AND EVOLUTION

Biogenic Iron Preserves Structures during Fossilization: A Hypothesis

(2020) Farid Saleh et al.   BIOESSAYS

Intrinsic Iron May Have Promoted Ancient Nervous Tissue Fossilization

(2020) Ross P. Anderson   BIOESSAYS

Arthropod Origins: Integrating Paleontological and Molecular Evidence

(2020) Gregory D. Edgecombe   Annual Review of Ecology Evolution and Systematics

Ancestral regulatory mechanisms specify conserved midbrain circuitry in arthropods and vertebrates

(2020) Jessika C. Bridi et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Loss of intermediate regions of perpendicular body axes contributed to miniaturization of tardigrades

(2020) Mandy Game et al.   PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES

Expression of NK genes that are not part of the NK cluster in the onychophoran Euperipatoides rowelli (Peripatopsidae)

(2019) Sandra Treffkorn et al.   BMC DEVELOPMENTAL BIOLOGY

Revisiting metazoan phylogeny with genomic sampling of all phyla

(2019) Christopher E. Laumer et al.   PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES

Arthropod segmentation

(2019) Erik Clark et al.   DEVELOPMENT

Homeobox Gene Duplication and Divergence in Arachnids

(2018) Daniel J Leite et al.   MOLECULAR BIOLOGY AND EVOLUTION

Cooption of an appendage-patterning gene cassette in the head segmentation of arachnids

(2018) Emily V. W. Setton et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Brain and eyes of Kerygmachela reveal protocerebral ancestry of the panarthropod head

(2018) Tae-Yoon S. Park et al.   Nature Communications

Analyses of nervous system patterning genes in the tardigrade Hypsibius exemplaris illuminate the evolution of panarthropod brains

(2018) Frank W. Smith et al.   EvoDevo

A three-dimensionally preserved lobopodian from the Herefordshire (Silurian) Lagerstätte, UK

(2018) Derek J. Siveter et al.   Royal Society Open Science

Inferring Arthropod Phylogeny: Fossils and their Interaction with Other Data Sources

(2017) Gregory D. Edgecombe   INTEGRATIVE AND COMPARATIVE BIOLOGY

Chelicerates and the Conquest of Land: A View of Arachnid Origins Through an Evo-Devo Spyglass

(2017) Prashant P. Sharma   INTEGRATIVE AND COMPARATIVE BIOLOGY

DrosophilaPax6 promotes development of the entire eye-antennal disc, thereby ensuring proper adult head formation

(2017) Jinjin Zhu et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Formation and subdivision of the head field in the centipede Strigamia maritima, as revealed by the expression of head gap gene orthologues and hedgehog dynamics

(2017) Vera S. Hunnekuhl et al.   EvoDevo

The Compact Body Plan of Tardigrades Evolved by the Loss of a Large Body Region

(2016) Frank W. Smith et al.   CURRENT BIOLOGY

A new lower Cambrian shelly fossil biostratigraphy for South Australia

(2016) Marissa J. Betts et al.   GONDWANA RESEARCH

Fuxianhuiid ventral nerve cord and early nervous system evolution in Panarthropoda

(2016) Jie Yang et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Lobopodians

(2015) Javier Ortega-Hernández   CURRENT BIOLOGY

Preservational Pathways of Corresponding Brains of a Cambrian Euarthropod

(2015) Xiaoya Ma et al.   CURRENT BIOLOGY

Phylogenetic analysis and expression patterns of Pax genes in the onychophoranEuperipatoides rowellireveal a novel bilaterian Pax subfamily

(2015) Franziska Anni Franke et al.   EVOLUTION & DEVELOPMENT

Differential expression of retinal determination genes in the principal and secondary eyes of Cupiennius salei Keyserling (1877)

(2015) Leyli Samadi et al.   EvoDevo

Molecular characterization and embryonic origin of the eyes in the common house spider Parasteatoda tepidariorum

(2015) Christoph Schomburg et al.   EvoDevo

An anterior medial cell population with an apical-organ-like transcriptional profile that pioneers the central nervous system in the centipede Strigamia maritima

(2014) Vera S. Hunnekuhl et al.   DEVELOPMENTAL BIOLOGY

Onychophoran Hox genes and the evolution of arthropod Hox gene expression

(2014) Ralf Janssen et al.   Frontiers in Zoology

Brain structure resolves the segmental affinity of anomalocaridid appendages

(2014) Peiyun Cong et al.   NATURE

Controversies Surrounding Segments and Parasegments in Onychophora: Insights from the Expression Patterns of Four “Segment Polarity Genes” in the Peripatopsid Euperipatoides rowelli

(2014) Franziska Anni Franke et al.   PLoS One

Selective neuronal staining in tardigrades and onychophorans provides insights into the evolution of segmental ganglia in panarthropods

(2013) Georg Mayer et al.   BMC EVOLUTIONARY BIOLOGY

The expression pattern of the genes engrailed, pax6, otd and six3 with special respect to head and eye development in Euperipatoides kanangrensis Reid 1996 (Onychophora: Peripatopsidae)

(2013) Bo Joakim Eriksson et al.   DEVELOPMENT GENES AND EVOLUTION

What is a segment?

(2013) Roberta L Hannibal et al.   EvoDevo

Form and function of the feeding apparatus in Eutardigrada (Tardigrada)

(2012) Roberto Guidetti et al.   ZOOMORPHOLOGY

Cambrian lobopodians and extant onychophorans provide new insights into early cephalization in Panarthropoda

(2012) Qiang Ou et al.   Nature Communications

MicroRNAs and phylogenomics resolve the relationships of Tardigrada and suggest that velvet worms are the sister group of Arthropoda

(2011) L. I. Campbell et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Travelling and splitting of a wave of hedgehog expression involved in spider-head segmentation

(2011) Masaki Kanayama et al.   Nature Communications

Six3 demarcates the anterior-most developing brain region in bilaterian animals

(2011) Patrick RH Steinmetz et al.   EvoDevo

Novel Function of Distal-less as a Gap Gene during Spider Segmentation

(2011) Matthias Pechmann et al.   PLoS Genetics

Head patterning and Hox gene expression in an onychophoran and its implications for the arthropod head problem

(2010) Bo Joakim Eriksson et al.   DEVELOPMENT GENES AND EVOLUTION

Gene expression patterns in an onychophoran reveal that regionalization predates limb segmentation in pan-arthropods

(2010) Ralf Janssen et al.   EVOLUTION & DEVELOPMENT

BURGESS SHALE-TYPE PRESERVATION: A COMPARISON OF NARAOIIDS (ARTHROPODA) FROM THREE CAMBRIAN LOCALITIES

(2010) J.-P. LIN et al.   PALAIOS

The involvement of engrailed and wingless during segmentation in the onychophoran Euperipatoides kanangrensis (Peripatopsidae: Onychophora) (Reid 1996)

(2009) Bo Joakim Eriksson et al.   DEVELOPMENT GENES AND EVOLUTION

Neural development in Onychophora (velvet worms) suggests a step-wise evolution of segmentation in the nervous system of Panarthropoda

(2009) Georg Mayer et al.   DEVELOPMENTAL BIOLOGY

Dynamic gene expression is required for anterior regionalization in a spider

(2009) M. Pechmann et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Divergent functions of orthodenticle, empty spiracles and buttonhead in early head patterning of the beetle Tribolium castaneum (Coleoptera)

(2008) Johannes B. Schinko et al.   DEVELOPMENTAL BIOLOGY