Roland Sookias

Roland Sookias

Postdoctoral Research Assistant

I am an evolutionary researcher with broad interests in phylogenetic and macroevolutionary processes.

At Oxford I am working as part of the TEMPO project funded by the European Research Council, in the lab of Prof. Roger Benson. This is a very large scale project, involving collecting 3D morphological data for extant and fossil tetrapods to investigate major questions. Key questions to be addressed are the interplay between niche-filling and morphological rates of evolution, and whether rates of evolution increase or decrease through time. My main responsibility is collection and processing of 3D data for fossil archosaurs.

I continue to work on the interaction of phylogeny and morphology more broadly, and on archosauromorph palaeontology and anatomy. I am also affiliated with the Museum für Naturkunde in Berlin.

Please visit my personal website for more details, and for my publications and data.

SOOKIAS RB. 2019. Exploring the effects of character construction and choice, outgroups, and analytical method on phylogenetic inference from discrete characters in extant crocodilians. Zoological Journal of the Linnean Society.
SOOKIAS RB, Benson RBJ, Butler RJ. 2012. Biology, not environment, drives major patterns in maximum tetrapod body size through time. Biology Letters 8:674-677.

SOOKIAS RB, Butler RJ, Benson RBJ. 2012. Rise of dinosaurs reveals major body size transitions are driven by passive processes of trait evolution. Proceedings of the Royal Society B 279:2180-2187.

Non-peer-reviewed preprints:

SOOKIAS RB. 2019, Feb. 13. The concept of homoiology and its potential application in palaeontological phylogenetics. PaleorXiv. https://doi.org/10.31233/osf.io/5swd6

Peer-reviewed articles:

SOOKIAS RB. 2019. Exploring the effects of character construction and choice, outgroups, and analytical method on phylogenetic inference from discrete characters in extant crocodilians. Zoological Journal of the Linnean Society.

Butler RJ, Ezcurra MD, Liu J, SOOKIAS RB, Sullivan C. 2019. The anatomy and phylogenetic position of the erythrosuchid archosauriform Guchengosuchus shiguaiensis from the earliest Middle Triassic of China. PeerJ 7:e6435 . Open access.

SOOKIAS RB, Passmore S, Atkinson QD. 2018. Deep cultural ancestry and human development indicators across nation states. Royal Society Open Science. Open access.

Foth C, Ezcurra MD, SOOKIAS RB, Brusatte SL, Butler RJ. 2016. Unappreciated diversification of stem archosaurs during the Middle Triassic predated the dominance of dinosaurs. BMC Evolutionary Biology 16:188. Open access.

Sobral G, SOOKIAS RB, Bhullar B-AS, Smith R, Butler RJ, Müller J. 2016. New information on the braincase and inner ear of Euparkeria capensis Broom: implications for diapsid and archosaur evolution. Royal Society Open Science 3:160072. Open access.

SOOKIAS RB. 2016. The relationships of the Euparkeriidae and the rise of Archosauria. Royal Society Open Science 3:150674. Open access.

SOOKIAS RB, Sullivan, C., Liu, J. & Butler, R. J. 2014. Systematics of putative euparkeriids (Diapsida: Archosauriformes) from the Triassic of China. PeerJ. 2:e658. Open access.

SOOKIAS RB, Böhmer C, Clack JA. 2014. Redescription and phylogenetic analysis of an enigmatic Pennsylvanian (Late Carboniferous) tetrapod from Nova Scotia, and the lability of Meckelian jaw ossification. PLoS ONE 9:e109717. Open access.

SOOKIAS RB, Sennikov AG, Gower, DJ, Butler RJ. 2014. The monophyly of Euparkeriidae (Reptilia: Archosauriformes) and the origins of crown Archosauria: a revision of Dorosuchus neoetus from the Middle Triassic of Russia. Palaeontology 57: 1177-1202.

Butler RJ, Sullivan C, Ezcurra MD, Liu J, Lecuona A, SOOKIAS RB. 2014. New clade of enigmatic early archosaurs yields insights into early pseudosuchian phylogeny and the biogeography of the archosaur radiation. BMC Evolutionary Biology 14:128. Open access.

SOOKIAS RB, Budd GE, Kear BP. 2013. Mesozoic fossil sustainability: synoptic case studies of resource management. GFF 135:131-143.

SOOKIAS RB, Butler RJ. 2013. Euparkeriidae. In: Anatomy, Phylogeny and Palaeobiology of Early Archosaurs and their Kin, Nesbitt, S. J., Desojo, J. B. & Irmis, R. B. (eds). Geological Society, London, Special Publications 379:35-48.

SOOKIAS RB, Benson RBJ, Butler RJ. 2012. Biology, not environment, drives major patterns in maximum tetrapod body size through time. Biology Letters 8:674-677.

SOOKIAS RB, Butler RJ, Benson RBJ. 2012. Rise of dinosaurs reveals major body size transitions are driven by passive processes of trait evolution. Proceedings of the Royal Society B 279:2180-2187.