a.r.t.spencer

X-ray Synchrotron Microtomography of a silicified Jurassic Cheirolepidiaceae (Conifer) cone: histology and morphology of Pararaucaria collinsonae sp. nov.

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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. Three-dimensionally preserved Cheirolepidiaceous ovuliferous cones […]

X-ray Synchrotron Microtomography of a silicified Jurassic Cheirolepidiaceae (Conifer) cone: histology and morphology of Pararaucaria collinsonae sp. nov.

This entry was posted in Publications and tagged 3D Reconstruction Cheirolepidiaceae Conifer Jurassic Pararaucaria Silicified SRXMT XMT on by

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 Group of southern England (Tithonian […]

An exceptional three-dimensionally preserved Pararaucaria (Cheirolepidiaceae) ovuliferous cone from the late Jurassic of Southern England: non-destructive recovery of full anatomical and histological detail using Diamond Light Source synchrotron

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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 cones are rare, with few […]

Conservation vs investigation of amber: A risk assessment to determine whether amber is altered by micro-CT or confocal microscopy studies

This entry was posted in Posters and tagged Amber Conservation SRXMT XMT on by

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 capsule” preserving fossil inclusions in […]

Is amber altered by microCT or confocal microscopy studies? A risk assessment using optical microscopy, FTIR and Raman spectroscopy

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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

Species of the medullosan ovule Stephanospermum from the Lopingian (late Permian) floras of China

This entry was posted in Publications and tagged Coal-ball Gymnosperm Medullosales Shuicheng Trigonocarp Wangjiazhai Formation on by

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 the Permian floras of Cathaysia […]

Combined methodologies for three-dimensional reconstruction of fossil plants preserved in siderite nodules: Stephanospermum braidwoodensis nov. sp. (Medullosales) from the Mazon Creek lagerstätte

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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 based on the XMT results.  […]

Tomography old and new: comparison of 3D reconstruction techniques for fossil plants

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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 subsequent floral assemblages they are […]

A novel Carboniferous ovule elucidated through a combined methodology for three-dimensional reconstruction

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Type Presentation Event PalAss Annual Meeting Authors Spencer ART, Hilton J, Suttton MD Date 2011 Abstract Plants fossilised within siderite nodules (FeCO3) are often three-dimensionally preserved – such as those from the Mazon Creek Carboniferous terrestrial lagerstätte. Fossils preserved in this way have historically been studied using single-surface observation or destructive  investigative methods such as […]