Dr David Legg, Museum Research Fellow

David Legg

Email: david.legg@oum.ox.ac.uk
Phone: +44 (0)1865 272964

Research summary
My research aims to understand the impact fossil data has on our understanding of the relationships of modern organisms, specifically arthropods. This involves the collection and description of exceptionally preserved material from around the world and coding them into an extensive phylogenetic analysis. Once a phylogenetic hypothesis has been obtained it can be used to understand patterns and processes in evolution. Recently I have been studying material from Ordovician sites in Wales, Morocco and the U.S.A. which will then be used as a tool to explore the phylogenetic signal of the “Great Ordovician Biodiversification event”.

Biography

Selected publications
Legg, D.A. and Caron, J.-B. in press. New middle Cambrian bivalved arthropod from the Burgess Shale (British Columbia, Canada). Palaeontology.

Legg, D.A. ., Sutton, M.D. and Edgecombe, G.D. 2013. Arthropod fossil data increase congruence of morphological and molecular phylogenies. Nature communications, 4: 2485.

A reconstruction of Kootenichela deppi A reconstruction of Kootenichela deppi from the Cambrian of Canada (copyright David Legg and the Paleontological Society).

Legg, D.A. and Vannier, J. 2013. The affinities of the cosmopolitan arthropod Isoxys and its implications for the origin of arthropods. Lethaia, 46, 540-550.

Rak, S., Ortega-Hernández, J. and Legg, D.A. 2013. A revision of the Late Ordovician marrellomorph arthropod Furca bohemica from the Czech Republic. Acta Palaeontologica Polonica, 58, 615-628.

Legg, D.A. 2013. Multi-segmented arthropods from the Middle Cambrian of British Columbia (Canada). Journal of Palaeontology,87, 493-501.

Edgecombe, G.D. and Legg, D.A. 2013. The arthropod fossil record. p. 393-415 In Minelli, A., Boxshall, G. and Fusco, G. (eds.) Arthropod Biology and Evolution: Molecules, Development, Morphology. Springer-Verlag, Berlin.

Ortega-Hernández, J., Legg, D.A. and Braddy, S.J. 2013. The phylogeny of aglaspidid arthropods and the internal relationships within Artiopoda. Cladistics, 29: 15-45.

Legg, D.A. , Sutton, M.D. Edgecombe, G.D. and Caron, J.-B. 2012. Cambrian bivalved arthropod reveals origin of arthrodization. Proceedings of the Royal Society B, 279: 4699-4704.

Briggs, D.E.G., Siveter, D.J., Siveter, D.J., Sutton, M.D., Garwood, R.J. and Legg, D.A. 2012. A Silurian horseshoe crab illuminates the evolution of arthropod limbs. Proceedings of the National Academy of Science (USA), 109: 15702-15705.

Legg, D.A. , Garwood, R.J., Dunlop, J.A. and Sutton, M.A. 2012. A revision of orthosternous scorpions from the English Coal Measures aided by x-ray micro-tomography (XMT). Palaeontologia Electronica, 15.2: 14A: 16p.

The claws of Sanctacaris The claws of Sanctacaris - an ancestor of modern arachnids

Legg, D.A. , Ma, X., Wolfe, J.M., Ortega-Hernández, J., Edgecombe, G.D. and Sutton, M.D. 2011. Lobopodian phylogeny reanalysed. Nature, 476: E2-E3.

Lamsdell, J.C. and Legg, D.A. 2010. An isolated pterygotid ramus (Chelicerata: Eurypterida) from the Beartooth Butte Formation, Wyoming. Journal of Paleontology, , 84: 1206-1208.

Ortega-Hernández, J., Legg, D.A. Tremewan, J. and Braddy, S.J. (2010). Fossils explained 59: euthycarcinoids. Geology Today, 26: 195-198.

Affiliations
The Palaeontological Association

Research

Tracy Aze Allison Daley Sammy De Grave David Legg Mark Robinson Derek Siveter Paul Smith
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