PeerJ Author 100 Points Contributions by role Author 100 Contributions by subject area Evolutionary Studies Paleontology Plant Science Paul Kenrick PeerJ Author Summary Paleontology Plant Science Work details The Natural History Museum Earth Sciences PeerJ Contributions Articles 1 October 23, 2014 X-ray Synchrotron Microtomography of a silicified Jurassic Cheirolepidiaceae (Conifer) cone: histology and morphology of Pararaucaria collinsonae sp. nov. David C. Steart, Alan R.T. Spencer, Russell J. Garwood, Jason Hilton, Martin C. Munt, John Needham, Paul Kenrick https://doi.org/10.7717/peerj.624 PubMed 25374776