A new Ordovician arthropod from the Winneshiek Lagerstätte of Iowa (USA) reveals the ground plan of eurypterids and chasmataspidids

Anomalocaridid trunk limb homology revealed by a giant filter-feeder with paired flaps

(2015) Peter Van Roy et al.   NATURE

An unusual euchelicerate linking horseshoe crabs and eurypterids, from the Lower Devonian (Lochkovian) of Yunnan, China

(2015) Paul A. Selden et al.   ZOOLOGICA SCRIPTA

An Ordovician variation on Burgess Shale-type biotas

(2015) Joseph P. Botting et al.   Scientific Reports

Kodymirus and the case for convergence of raptorial appendages in Cambrian arthropods

(2013) James C. Lamsdell et al.   NATURWISSENSCHAFTEN

A diverse chasmataspidid (Arthropoda: Chelicerata) fauna from the Early Devonian (Lochkovian) of Siberia

(2013) David J. Marshall et al.   PALAEONTOLOGY

A holomorph approach to xiphosuran evolution—a case study on the ontogeny of Euproops

(2012) Carolin Haug et al.   DEVELOPMENT GENES AND EVOLUTION

A horseshoe crab (Arthropoda: Chelicerata: Xiphosura) from the Lower Devonian (Lochkovian) of Yunnan, China

(2012) JAMES C. LAMSDELL et al.   GEOLOGICAL MAGAZINE

A new Ordovician eurypterid (Arthropoda: Chelicerata) from southeast Turkey: Evidence for a cryptic Ordovician record of Eurypterida

(2012) James C. Lamsdell et al.   GONDWANA RESEARCH

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

Revised systematics of Palaeozoic ‘horseshoe crabs’ and the myth of monophyletic Xiphosura

(2012) James C. Lamsdell   ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY

Welsh gold: A new exceptionally preserved pyritized Ordovician biota

(2011) Joseph P. Botting et al.   GEOLOGY

Synziphosurines (Xiphosura: Chelicerata) from the Silurian of Iowa

(2011) Rachel A. Moore et al.   JOURNAL OF PALEONTOLOGY

A giant Ordovician anomalocaridid

(2011) Peter Van Roy et al.   NATURE

Geological history and phylogeny of Chelicerata

(2010) Jason A. Dunlop   ARTHROPOD STRUCTURE & DEVELOPMENT

Untersuchungen zur Morphologie, Taxonomie und Phylogenie der Chelicerata1 I. Morphologische Untersuchungen

(2010) P. Weygoldt et al.   JOURNAL OF ZOOLOGICAL SYSTEMATICS AND EVOLUTIONARY RESEARCH

Ordovician faunas of Burgess Shale type

(2010) Peter Van Roy et al.   NATURE

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

(2010) DAVID M. RUDKIN et al.   PALAEONTOLOGY

Cope's Rule and Romer's theory: patterns of diversity and gigantism in eurypterids and Palaeozoic vertebrates

(2009) J. C. Lamsdell et al.   Biology Letters

Beyond Beecher's Trilobite Bed: Widespread pyritization of soft tissues in the Late Ordovician Taconic foreland basin

(2009) Úna C. Farrell et al.   GEOLOGY

Scorpion taphonomy: criteria for distinguishing fossil scorpion molts and carcasses

(2009) Victoria E. McCoy et al.   JOURNAL OF ARACHNOLOGY

Redescription ofDrepanopterus abonensis(Chelicerata: Eurypterida: Stylonurina) from the late Devonian of Portishead, UK

(2009) JAMES C. LAMSDELL et al.   PALAEONTOLOGY

TNT, a free program for phylogenetic analysis

(2008) Pablo A. Goloboff et al.   CLADISTICS