An Ordovician Pycnogonid (Sea Spider) with Serially Subdivided ‘Head’ Region

Silurian horseshoe crab illuminates the evolution of arthropod limbs

(2012) D. E. G. Briggs et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Geological history and phylogeny of Chelicerata

(2010) Jason A. Dunlop   ARTHROPOD STRUCTURE & DEVELOPMENT

The chelifores of sea spiders (Arthropoda, Pycnogonida) are the appendages of the deutocerebral segment

(2010) Georg Brenneis et al.   EVOLUTION & DEVELOPMENT

A scanning electron microscopy study of the embryonic development of Pycnogonum litorale (Arthropoda, Pycnogonida)

(2010) Jakob Machner et al.   JOURNAL OF MORPHOLOGY

THE OLDEST HORSESHOE CRAB: A NEW XIPHOSURID FROM LATE ORDOVICIAN KONSERVAT-LAGERSTÄTTEN DEPOSITS, MANITOBA, CANADA

(2010) DAVID M. RUDKIN et al.   PALAEONTOLOGY

A congruent solution to arthropod phylogeny: phylogenomics, microRNAs and morphology support monophyletic Mandibulata

(2010) O. Rota-Stabelli et al.   PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES

Calibrating the chelicerate clock: a paleontological reply to Jeyaprakash and Hoy

(2009) Jason A. Dunlop et al.   EXPERIMENTAL AND APPLIED ACAROLOGY

Broad phylogenomic sampling improves resolution of the animal tree of life

(2008) Casey W. Dunn et al.   NATURE

Ecdysis in sea scorpions (Chelicerata: Eurypterida)

(2008) O. Erik Tetlie et al.   PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY