Type: Peer Reviewed Research Paper Journal: American Journal of Botany Year: June 1, 2015 Authors: Spencer ART, Mapes G, Bateman RM, Hilton J, Rothwell GW DOI http://dx.doi.org/10.3732/ajb.1500121 Abstract: Premise of the study: Triassic and Jurassic fossils record structural changes in conifer seed cones through time, provide the earliest evidence for crown-group conifer […]
Alan Spencer
24 posts
Type Presentation Event Linnean Society – Palaeobotany Specialist Group Authors Steart DC, Spencer ART, Garwood RJ, Hilton J, Munt MC, Needham J, Kenrick P, Date November 12, 2014 Abstract The Cheirolepidiaceae are an extinct group of conifers with an extensive Mesozoic fossil record well-documented by foliage, wood, pollen and reproductive organs. […]
Type: Peer Reviewed Research Paper Journal: PeerJ Year: October 23, 2014 Authors: Steart DC, Spencer ART, Garwood RJ, Hilton J, Munt MC, Needham J, Kenrick P DOI http://dx.doi.org/10.7717/peerj.624 Abstract: We document a new species of ovulate cone (Pararaucaria collinsonae) on the basis of silicified fossils from the Late Jurassic Purbeck Limestone […]
Type: Peer Reviewed Research Paper Journal: Awaiting Acceptance Year: Submitted Authors: Wang S-J, Wang J, Spencer ART, Bateman RM, Shao L, Hilton J DOI Awaiting DOI Abstract: Awaiting Acceptance
Type Presentation Event EPPC (Padua, Italy) Authors Spencer ART, Kenrick P, Steart DC, Garwood RJ, Hilton J, Munt MC, Needham J Date 2014 Abstract The Cheirolepidiaceae are an extinct group of conifers with an extensive Mesozoic fossil record well-documented by foliage, wood, pollen and reproductive organs. Three-dimensionally preserved Cheirolepidiaceous ovuliferous […]
Type: Poster Event: Society for the Preservation of Natural History Collections (SPNHC) Cardiff Year: 2014 Authors: Bertini M, Ball AD, Mellish C, Burgio L, Shah B, Pretzel B, Blagoderov V, Goral T, Sykes D, Summerfield R, Steart DC, Garwood RJ, Spencer ART, Ross A, Penney D Abstract: Amber represents an invaluable “time […]
Type: Peer Reviewed Research Paper Journal: Studies in Conservation Year: Submitted Authors: Bertini M, Ball AD, Mellish C, Burgio L, Shah B, Pretzel B, Blagoderov V, Goral T, Sykes D, Summerfield R, Steart DC, Garwood RJ, Spencer ART, Ross A, Penney D. DOI Awaiting DOI Abstract: Awaiting Acceptance
Type: Peer Reviewed Research Paper Journal: Journal of Asian Earth Sciences Year: 2013 Authors: Spencer ART, Wang S-J, Dunn MT, Hilton J. DOI 10.1016/j.jseaes.2013.07.030 Abstract: The medullosan pteridosperm ovule Stephanospermum Brongniartis a well-known component of Carboniferous aged coal-ball and siderite nodule floras from North America and Europe but also occurs in […]
Type: Peer Reviewed Research Paper Journal: Review of Palaeobotany and Palynology Year: 2013 Authors: Spencer ART, Hilton J, Sutton MD DOI 10.1016/j.revpalbo.2012.09.001 Abstract: A new species of Medullosan ovule from the Mazon Creek Carboniferous lagerstätte is documented using a novel combination of non-invasive X-Ray Micro-Tomography (XMT) and orientated precision sectioning […]
Type Presentation Event IPC XIII / IOPC IX (Tokyo, Japan) Authors Wickens ZJ, Spencer ART, Hilton J, Sutton MD Notes Presenting work completed by Zoe J. Wickens based on her 2011 MPhil from Imperial College London. Date 2012 Abstract Seed plants appear in the fossil record during the Upper Devonian, but in many […]