Home / Palaeobotanical Tools / Microtomography (CT Scanning, XTM) including Synchrotron X-ray Tomographic Microscopy (SRXTM)

! R.L. Abel et al. (2012): A palaeobiologist´s guide to "virtual" micro-CT preparation. In PDF, Palaeontologia Electronica, 15.

! S. Asche et al. (2023): What it takes to solve the Origin (s) of Life: An integrated review of techniques. Free access, arXiv.
! Note figure 1: Comprehensive array of experimental and computational techniques, along with conceptual bridges, which are primarily utilised in OoL studies.
"... We review the common tools and techniques that have been used significantly in OoL [origin(s) of life] studies in recent years.
[...] it spans broadly — from analytical chemistry to mathematical models — and highlights areas of future work ..."

Department of Geological Sciences (High-Resolution X-ray Computed Tomography (CT) Facility), University of Texas, Austin: Image Folio. Snapshot taken by the Internet Archive´s Wayback Machine.
High-resolution X-ray CT (Computed Tomography) is a completely nondestructive technique for visualizing features in the interior of opaque solid objects, and for obtaining digital information on their 3-D geometries and properties.
What is X-ray CT? Eexcerpted and adapted from: Denison, C., Carlson, W.D., and Ketcham, R.A. 1997. Three-dimensional quantitative textural analysis of metamorphic rocks using high-resolution computed X-ray tomography: Part I. Methods and techniques. Journal of Metamorphic Geology, 15: 29-44.

! A. Barron (2023): Applications of Microct Imaging to Archaeobotanical Research. Open access, Journal of Archaeological Method and Theory, https://doi.org/10.1007/s10816-023-09610-z.

J.C. Benedict (2015): A new technique to prepare hard fruits and seeds for anatomical studies. In PDF, Appl. Plant Sci., 3.

! L. Bertrand et al. (2012): Development and trends in synchrotron studies of ancient and historical materials. In PDF, Physics Reports, 519: 51-96.

! L. Bertrand et al. (2011): European research platform IPANEMA at the SOLEIL synchrotron for ancient and historical materials. In PDF, Journal of Synchrotron Radiation.

S. Beurel et al (2024): First flower inclusion and fossil evidence of Cryptocarya (Laurales, Lauraceae) from Miocene amber of Zhangpu (China). In PDF, Fossil Record, 27: 1–11.
See likewise here and there.
"... We here described the first Cenozoic Lauraceae flower of Asia and confirmed the presence of Cryptocarya in the Miocene Zhangpu flora
[...] We scanned the specimen using synchrotron radiation-based micro-computed tomography (SRìCT) and then compared the fossil with extant flowers of the genus ..."

M.I. Bird et al. (2008): X-ray microtomographic imaging of charcoal. Abstract, Journal of Archaeological Science, 35: 2698-2706.

B. Blonder et al. (2012): X-ray imaging of leaf venation networks. In PDF, New Phytologist.

C. Kevin Boyce et al. (2003): CHEMICAL EVIDENCE FOR CELL WALL LIGNIFICATION AND THE EVOLUTION OF TRACHEIDS IN EARLY DEVONIAN PLANTS. Int. J. Plant Sci., 164: 691-702.

A. Brayard et al. (2019): Glow in the dark: Use of synchrotron µXRF trace elemental mapping and multispectral macro-imaging on fossils from the Paris Biota (Bear Lake County, Idaho, USA). Geobios, 54: 1-79. See also here (in PDF).

! C.R. Brodersen and A.B. Roddy (2016): New frontiers in the three-dimensional visualization of plant structure and function. Open access, American journal of botany, 103: 184-188.

! C.R. Brodersen et al. (2011): Automated analysis of three-dimensional xylem networks using high-resolution computed tomography. In PDF, New Phytologist, 191: 1168-1179.

William D. Carlson (2006): Three-dimensional imaging of earth and planetary materials. In PDF, Earth and Planetary Science Letters, 249: 133-147. Provided by the Internet Archive´s Wayback Machine.

! M.E. Collinson et al. (2016): X-ray micro-computed tomography (micro-CT) of pyrite-permineralized fruits and seeds from the London Clay Formation (Ypresian) conserved in silicone oil: a critical evaluation. Abstract, Botany, 94. See also here (in PDF).

! M.E. Collinson et al. (2012): The value of X-ray approaches in the study of the Messel fruit and seed flora. In PDF, Palaeobiodiversity and Palaeoenvironments, 92: 403-416. See also here (abstract).

D. Coty et al. (2014): The First Ant-Termite Syninclusion in Amber with CT-Scan Analysis of Taphonomy. Open access, PLoS ONE 9.

! J.A. Cunningham et al. (2014): A virtual world of paleontology. In PDF, Trends in Ecology & Evolution, 29: 347-357. See also here.
"... in recent years the discipline has been revolutionized by the emergence of powerful methods for the digital visualization and analysis of fossil material. This has included improvements in both computer technology and its availability, and in tomographic techniques, which have made it possible to image a series of 2D sections or slices through a fossil and to use these to make a 3D reconstruction of the specimen".

Charles Daghlian (Dartmouth College, Hannover, NH) and Jennifer Svitko, Paleobotanical Holdings at the Liberty Hyde Bailey Hortorium at Cornell University: Paleoclusia 3D Reconstructions. Movies from CT scans done on the Turonian fossils. Provided by the Internet Archive´s Wayback Machine. See also here (W.L. Crepet and K.C. Nixon 1998, abstract and photos).

M.L. DeVore et al. (2006): Utility of high resolution x-ray computed tomography (HRXCT) for paleobotanical studies: An example using london clay fruits and seeds. Open access, American journal of botany, 93: 1848-1851.

! N.K. Dhami et al. (2023): Microbially mediated fossil concretions and their characterization by the latest methodologies: a review. Free access, Frontiers in Microbiology, 14: 1225411. doi: 10.3389/fmicb.2023.1225411.
Note figure 1: The three broad modes of fossilization.
Figure 6: Visual representation of the factors involved in formation of iron carbonate concretions in freshwater influenced environments.
! Figure 7: Flow diagram for analytical methods applicable to microbial fossil concretions, modern and ancient.
Figure 8: Completing the story of fossilization. Conceptual framework to establish fossilization processes and interrogate their biochemical record.
"... we provide a comprehensive account of organic geochemical, and complimentary inorganic geochemical, morphological, microbial and paleontological, analytical methods, including recent advancements, relevant to the characterization of concretions and sequestered OM [organic matter] ..."

! S. Dierickx et al. (2024): Non-destructive wood identification using X-ray µCT scanning: which resolution do we need? Open access, Plant Methods, 20. https://doi.org/10.1186/s13007-024-01216-0. Note likewise here (in PDF).
"... There is, however, no standardized approach that determines the required resolution for proper wood identification using X-ray µCT. Here we compared X-ray µCT scans of 17 African wood species at four resolutions
[...] The results show the potential of X-ray µCT for non-destructive wood identification.
[...] The dataset of 17 scanned species is made available online and serves as the first step towards a reference database of scanned wood species ..."

The Digital Morphology (part of the National Science Foundation). The Digital Morphology library is a dynamic archive of information on digital morphology and high-resolution X-ray computed tomography of biological specimens.

J.A. Dunlop et al. (2012): A minute fossil phoretic mite recovered by phasecontrast X-ray computed tomography. In PDF, Biol. Lett., 8: 457-460.

! S.M. Edie et al. (2023): High-throughput micro-CT scanning and deep learning segmentation workflow for analyses of shelly invertebrates and their fossils: Examples from marine Bivalvia. Free access, Front. Ecol. Evol., 11:1127756. doi: 10.3389/fevo.2023.1127756

A.M.T. Elewa (2011): Computational Paleontology. Provided by Google books.

S. Faulwetter et al. (2013): Micro-computed tomography: Introducing new dimensions to taxonomy. Open access, Zookeys, 2013; (263): 1–45.

! Aaron G. Filler, Department of Neurosurgery, Institute for Nerve Medicine, Santa Monica, California: The History, Development and Impact of Computed Imaging in Neurological Diagnosis and Neurosurgery: CT, MRI, and DTI (PDF file). About Magnetic Resonance Imaging, Diffusion Tensor Imaging, etc.
This expired link is now available through the Internet Archive´s Wayback Machine.

! E.M. Friis et al. (2019): The Early Cretaceous Mesofossil Flora of Torres Vedras (Ne of Forte Da Forca), Portugal: A Palaeofloristic Analysis of an Early Angiosperm Community. Open access, Fossil Imprint, 75: 153–257. See also here (in PDF).
"... the oldest mesofossil flora containing angiosperm remains to be described in detail based on well-preserved flower, fruit and seed remains. It provides the most detailed information currently available on the structural diversity of angiosperms at this early stage in their evolution, the range of angiosperm species present, and their relationships to extant angiosperm lineages. ..."

E.M. Friis et al. (2014): Arcellites punctatus sp. nov.: a new megaspore from the Early Cretaceous of Portugal studied using high resolution synchrotron radiation X-ray tomographic microscopy (SRXTM). In PDF, Grana, 53: 91-102. See also here.

! E.M. Friis et al. (2014): Three-dimensional visualization of fossil flowers, fruits, seeds, and other plant remains using synchrotron radiation X-ray tomographic microscopy (SRXTM): new insights into Cretaceous plant diversity. In PDF, Journal of Paleontology, 88: 684–701. See also here (abstract).

! E.M. Friis et al. (2013): New Diversity among Chlamydospermous Seeds from the Early Cretaceous of Portugal and North America. Free accesss, International Journal of Plant Sciences, 174: 530–558.
"... The material is based on numerous charcoalified and lignitic specimens recovered from Early Cretaceous mesofossil floras [...]
! Attenuation-based synchrotron-radiation x-ray tomographic microscopy (SRXTM) and phase-contrast x-ray tomographic microscopy (PCXTM) were carried out [...]
! Volume rendering (voltex), which provides transparent reconstructions, was also used for the virtual sections ..."

Else Marie Friis et al. (2007): Phase-contrast X-ray microtomography links Cretaceous seeds with Gnetales and Bennettitales. Abstract, Nature 450: 549-552.
! See also here and there (in PDF).

! Q. Fu et al. (2023): Micro-CT results exhibit ovules enclosed in the ovaries of Nanjinganthus. Open access, Scientific Reports, 13.
Note figure 4: Micro-CT results exhibit ovules enclosed in the ovaries of Nanjinganthus.

M.K. Futey et al. (2012): Arecaceae Fossil Fruits from the Paleocene of Patagonia, Argentina. In PDF, The Botanical Review, 78: 205–234.
See also here.

R. Garwood and M. Sutton (2010): X-ray micro-tomography of Carboniferous stem-Dictyoptera: new insights into early insects. In PDF, Biology Letters.

R. Garwood et al. (2009): High-fidelity X-ray microtomography reconstruction of siderite-hosted Carboniferous arachnids. In PDF, Biol. Lett., 5: 841-844.

! C.T. Gee (2013): Applying microCT and 3D Visualization to Jurassic Silicified Conifer Seed Cones: a virtual advantage over thin-sectioning. In PDF, Applications in plant sciences. See also here.

C.T. Gee et al. (2003): A Miocene rodent nut cache in coastal dunes of the Lower Rhine Embayment, Germany. In PDF, Palaeontology, 46. See also here (abstract). One of the first CT applications to solve a palaeobotanical problem.

Ann Gibbons (2007): Paleontologists Get X-ray Vision. Science Vol. 318: 1546-1547.

Larry Greenemeier, Scientific American: Megavoltage CT Imaging Unlocks Fossil Mysteries. The proficiency of cancer-care computerized tomography on geologic finds.

T. Hegna et al. (2013): Not Quite Frozen in Time: Windows into the Internal Taphonomy of Fossils in Amber via MicroCT-scan Technology. Abstract.

F. Herrera et al. (2023): Investigating Mazon Creek fossil plants using computed tomography and microphotography. Free access, Frontiers of Earth Science, 11: 1200976. doi: 10.3389/feart.2023.1200976.
"... The three-dimensional (3D) preservation of Mazon Creek fossil plants makes them ideal candidates for study using x-ray micro-computed tomography (ìCT)
[...] The mineralogical composition of the fossil plant preservation was studied using elemental maps and Raman spectroscopy. In-situ spores were studied with differential interference contrast, Airyscan confocal super-resolution microscopy, and scanning electron microscopy, which reveal different features of the spores with different degrees of clarity ..."

F. Herrera et al. (2022): A permineralized Early Cretaceous lycopsid from China and the evolution of crown clubmosses. In PDF, New Phytologist, 233: 2310-2322.
See also here.

Anette E.S. Högström et al. (2009): A pyritized lepidocoleid machaeridian (Annelida) from the Lower Devonian Hunsrück Slate, Germany. PDF file, Proc. R. Soc. B, 276: 1981-1986. This paper is exemplary in its combination of X-ray and CT of animal body fossils.

Y. Huang et al. (2012): New fossil endocarps of Sambucus (Adoxaceae) from the upper Pliocene in SW China. In PDF, Review of Palaeobotany and Palynology, 171: 152-163. Snapshot taken by the Internet Archive´s Wayback Machine.

! K. Keklikoglou et al. (2019): Micro-computed tomography for natural history specimens: a handbook of best practice protocols. European Journal of Taxonomy, 522: 1–55. See also here (in PDF).
Worth checking out: Chapter 3.1.3. Palaeontological samples.

S. Kiel et al. (2012): Fossilized digestive systems in 23 million-year-old wood-boring bivalves. Open access, Journal of Molluscan Studies, 78: 349–356.
"... Fossilized remnants of parts of the digestive system of wood-boring pholadoidean bivalves are reported from late Oligocene–early Miocene deep-water sediments ..."

E.M. Knutsen and D.A. Konovalov (2024): Accelerating segmentation of fossil CT scans through Deep Learning. In PDF, Scientific Reports, 14.
See likewise here.
"... Recent developments in Deep Learning have opened the possibility for automated segmentation of large and highly detailed CT scan datasets of fossil material
[...] we present a method for automated Deep Learning segmentation to obtain high-fidelity 3D models of fossils digitally extracted from the surrounding rock, training the model with less than 1%-2% of the total CT dataset ..."

A. Kuczumow et al. (2000): Investigation of petrified wood by synchrotron X-ray fluorescence and diffraction methods. In PDF, Spectrochimica Acta Part B: Atomic Spectroscopy, Volume 55, Number 10, 2 October 2000, pp. 1623-1633. See also here (PDF file).

R. Kundrata et al. (2020): X-ray micro-computed tomography reveals a unique morphology in a new click-beetle (Coleoptera, Elateridae) from the Eocene Baltic amber. Open access, Scientific Reports, 10.

M. Lak et al. (2008): Phase contrast X-ray synchrotron imaging: opening access to fossil inclusions in opaque amber. In PDF, Microsc. Microanal., 14, 251-259.

S. Lautenschlager, Software Sustainability Institute: A Digital (R)evolution in Palaeontology.

J. Lee et al. (2024): Microtomography of an enigmatic fossil egg clutch from the Oligocene John Day Formation, Oregon, USA, reveals an exquisitely preserved 29-million-year-old fossil grasshopper ootheca. Free access, Parks Stewardship Forum, 40. https://doi.org/10.5070/P540162928
"... Using micro­tomography, we studied an enigmatic fossil egg clutch
[] Based on the morphology of the overall structure and the eggs, we conclude that the specimen represents a fossilized underground ootheca of the grasshoppers and locusts (Orthoptera: Caelifera) ..."

Karen Lee et al. (2006): Visualizing Plant Development and Gene Expression in Three Dimensions Using Optical Projection Tomography. Abstract, Plant Cell, 8(9): 2145-2156.

D. Lewis (2019): The fight for control over virtual fossils. Palaeontologists have been urged to share 3D scans of fossils online, but a Nature analysis finds that few researchers do so.
Nature News Feature.

! A. Lukeneder (2012): Computed 3D visualisation of an extinct cephalopod using computer tomographs. In PDF, Computers & Geosciences, 45: 68-74.

M. Malekhosseini (2023): Fossil record and new aspects of evolutionary history of Calcium biomineralization and plant waxes in fossil leaves. In PDF, Thesis, Rheinischen Friedrich-Wilhelms-Universität Bonn, Germany.

! H. Mallison (2012): Digitizing Methods for Paleontology: Applications, Benefits and Limitations. In PDF, in: A.M.T. Elewa (ed.), Computational Paleontology, pp 7–43.
See also here.

P. Matysová (2016): Study of fossil wood by modern analytical methods: case studies. Doctoral Thesis, Charles University in Prague, Faculty of Science, Institute of Geology and Palaeontology. Please take notice:
Fig. 6 (PDF page 39): Artistic reconstruction of wood deposition and silicification in river sediments.
Fig. 7 (PDF page 39): Artistic reconstruction of plant burial by volcanic fall-out.

C. Mays et al. (2017): Pushing the limits of neutron tomography in palaeontology: Three-dimensional modelling of in situ resin within fossil plants. Open access, Palaeontologia Electronica, 20.3.57A: 1-12.
See also here.
"... This study demonstrates the feasibility of NT [neutron tomography] as a means to differentiate chemically distinct organic compounds within fossils ..."

! S. McLoughlin et al. (2021): Neutron tomography, fluorescence and transmitted light microscopy reveal new insect damage, fungi and plant organ associations in the Late Cretaceous floras of Sweden. Open access, GFF, 143: 248-276.

! D. Mietchen et al. (2008): Three-dimensional Magnetic Resonance Imaging of fossils across taxa. PDF file, Biogeosciences, 5: 25-41. Fossil cones of the conifer Pararaucaria patagonica. Magnetic Resonance Imaging (MRI). See also here.

R.L. Mitchell et al. (2023): Terrestrial surface stabilisation by modern analogues of the earliest land plants: A multi-dimensional imaging study. Open access, Geobiology.
Note figure 1: Summary chart highlighting the evolution of different CGC elements [cryptogamic ground covers] from contrasting molecular, phylogenetic and fossil dating methods, and schematic land plant phylogeny of modern terrestrial organisms, focussing on the bryophytes and specific liverwort genera.

R.L. Mitchell et al. (2021): Correlative Microscopy: a tool for understanding soil weathering in modern analogues of early terrestrial biospheres. In PDF, Scientific Reports.

! J. Moosmann et al. (2014): Time-lapse X-ray phase-contrast microtomography for in vivo imaging and analysis of morphogenesis. Ib PDF, Nature Protocols, 9: 294–304.
See likewise here.

J.-D. Moreau et al. (2017): 100-million-year-old conifer tissues from the mid-Cretaceous amber of Charente (western France) revealed by synchrotron microtomography. Free access, Annals of Botany, 119: 117–128.

! J.D. Moreau et al. (2015): Study of the Histology of Leafy Axes and Male Cones of Glenrosa carentonensis sp. nov. (Cenomanian Flints of Charente-Maritime, France) Using Synchrotron Microtomography Linked with Palaeoecology. PloS one, 10.
Plant fossils embedded inside flint nodules.

MorphoSource (by Duke University): This is a project-based data archive that allows researchers to store and organize, share, and distribute their own 3d data.

National Center for X-ray Tomography (NXCT)

N. Nestle et al. (2018): Fossilized but functional – Tomographic insights into nature’s most resilient actuators. In PDF, Micro-CT User Meeting.
See also here (P. Gaupels, Geohorizon; in German).

Paul Scherrer Institut, Villigen (the largest research institute for natural and engineering sciences in Switzerland): TOMCAT - X02DA: Tomographic Microscopy. The beamline for TOmographic Microscopy and Coherent rAdiology experimentTs (TOMCAT) offers cutting-edge technology and scientific expertise for exploiting the distinctive peculiarities of synchrotron radiation for fast, non-destructive, high resolution, quantitative investigations on a large variety of samples.

K.B. Pigg et al. (2006): VALUE OF HRXCT FOR SYSTEMATIC STUDIES OF PYRITIZED FOSSIL FRUITS. Abstract, 2006 Philadelphia Annual Meeting, Geological Society of America.

M. Pika-Biolzi et al. (2000): Industrial X-ray computed tomography applied to paleobotanical research. Free access, Rivista italiana di Paleontologia e Stratigrafia.

! R. Racicot (2016): Fossil secrets revealed: X-ray CT scanning and applications in paleontology. In PDF, The Paleontological Society Papers, 22: 21–38.
See likewise here.

! I.A. Rahman et al. (2012): Virtual Fossils: a New Resource for Science Communication in Paleontology. In PDF, Evolution: Education and Outreach, 5: 635–641.

I. Rahman, WordPress: Virtual Palaeontology: What´s It All About?
Virtual Palaeontology.

A.R. Rees (2013): On the 3-D reconstruction of Paleozoic and Mesozoic paleobotanical problematica. Abstract.

F. Riquelme et al. (2009): Palaeometry: Non-destructive analysis of fossil materials. In PDF.

! N. Robin et al. (2018): The oldest shipworms (Bivalvia, Pholadoidea, Teredinidae) preserved with soft parts (western France): insights into the fossil record and evolution of Pholadoidea. In PDF, Palaeontology, 61: 905-918. See also here.
"... We report, from mid-Cretaceous logs of the Envigne Valley, France, exceptionally preserved wood-boring bivalves with silicified soft parts
[...] we report both the molluscs’ anatomy and their distribution inside the wood (using computed tomography)..."

T. Särkinen et al. (2018): A new commelinid monocot seed fossil from the early Eocene previously identified as Solanaceae. In PDF, American Journal of Botany, 105: 95–107. See also here.

D. Schwarz et al. (2005): Neutron Tomography of Internal Structures of Vertebrate Remains: A Comparison with X-Ray Computed Tomography. Palaeontologica Electronica Volume 8, Issue 2.

A.C. Scott et al. (2009): Scanning Electron Microscopy and Synchrotron Radiation X-Ray Tomographic Microscopy of 330 Million Year Old Charcoalified Seed Fern Fertile Organs. PDF file, Microsc. Microanal., 15: 166-173.
See figure 4, SEM of charcoalified pteridosperm ovule from the mid-Mississippian (Carboniferous). See also here.

! A.C. Scott and M.E. Collinson (2003): Non-destructive multiple approaches to interpret the preservation of plant fossils: implications for calcium-rich permineralisations. PDF file, Journal of the Geological Society, 160: 857-862. See also here.

K.C. Shunn and C.T. Gee (2023): Cross-sectioning to the core of conifers: pith anatomy of living Araucariaceae and Podocarpaceae, with comparisons to fossil pith. Open access, IAWA Journal.
"... In addition to a general paucity in pith descriptions [...] we focus here on the pith of 16 conifer species [...] as well as comparing pith anatomy in regard to branch age, genus, and family. Furthermore, comparisons are made to fossil conifer pith to elucidate common features shared by living conifers and their ancient relatives ..."

! B.J. Slater et al. (2011): Guadalupian (Middle Permian) megaspores from a permineralised peat in the Bainmedart Coal Measures, Prince Charles Mountains, Antarctica. In PDF, Review of Palaeobotany and Palynology, 167: 140-155.
See also here.

! Selena Y. Smith et al. (2009): Virtual taphonomy using synchrotron tomographic microscopy reveals cryptic features and internal structure of modern and fossil plants. Abstract and free PDF (4.5 MB), PNAS, 106: 12013-12018. Excellent!

! A.R.T. Spencer et al. (2017): New insights into Mesozoic cycad evolution: an exploration of anatomically preserved Cycadaceae seeds from the Jurassic Oxford Clay biota. PeerJ 5.
Description of a new genus of anatomically preserved gymnosperm seed from the Callovian–Oxfordian (Jurassic) Oxford Clay Formation (UK), using a combination of traditional sectioning and synchrotron radiation X-ray micro-tomography (SRXMT).

A.R.T. Spencer et al. (2013): Combined methodologies for three-dimensional reconstruction of fossil plants preserved in siderite nodules: Stephanospermum braidwoodensis nov. sp. (Medullosales) from the Mazon Creek lagerstätte. In PDF, Review of Palaeobotany and Palynology, 188: 1-17. See also here (abstract).

! M. Speranza et al. (2010): Traditional and new microscopy techniques applied to the study of microscopic fungi included in amber. PDF file, In: A. Méndez-Vilas and J. Díaz (eds.): Microscopy: Science, Technology, Applications and Education. Scanning electron microscopy in backscattered electron mode, with energy dispersive X-ray spectroscopy microanalysis.
Now recovered from the Internet Archive´s Wayback Machine.

D.C. Steart et al. (2014): X-ray Synchrotron Microtomography of a silicified Jurassic Cheirolepidiaceae (Conifer) cone: histology and morphology of Pararaucaria collinsonae sp. nov. In PDF, see also here.

S.R. Stock (2019): MicroComputed Tomography. Methodology and Applications, Second Edition. Abstracts available. 389 pages, Taylor & Francis.
All about computed tomography (CT).

C. Strullu-Derrien et al. (2019): The Rhynie chert. Open access, Current Biology 29: R1211–R1223.

C. Strullu-Derrien (2014): The earliest wood and its hydraulic properties documented in c. 407-million-year-old fossils using synchrotron microtomography. Abstract, Botanical Journal of the Linnean Society, 175: 423-437.

! G.W. Stull et al. (2016): Revision of Icacinaceae from the Early Eocene London Clay flora based on X-ray micro-CT. Free access, NRC Research Press.

Wolfgang H. Stuppy et al. (2003): Three-dimensional analysis of plant structure using high-resolution X-ray computed tomography. PDF file, Trends in Plant Science, 8.

! M.D. Sutton et al. (2012): SPIERS and VAXML; A software toolkit for tomographic visualisation and a format for virtual specimen interchange. In PDF, Palaeontologia Electronica, 15.

! M.D. Sutton (2008): Tomographic techniques for the study of exceptionally preserved fossils. PDF file, Proc. R. Soc. B, 275: 1587-1593.
See also here.

P. Tafforeau et al. (2007): Nature of laminations and mineralization in rhinoceros enamel using histology and X-ray synchrotron microtomography: Potential implications for palaeoenvironmental isotopic studies. Abstract, Palaeogeography, Palaeoclimatology, Palaeoecology, 246: 206-227.

! Thomas van de Kamp et al. (2018): Parasitoid biology preserved in mineralized fossils. Open access, Nature Communications, 9.
Using high-throughput synchrotron X-ray microtomography 55 parasitation events by four wasp species were identified from the Paleogene of France.

T. van der Niet et al. (2010): Three-dimensional geometric morphometrics for studying floral shape variation. In PDF, Trends in Plant Science, 15.

M.A. Vicente et al. (2017): The Use of Computed Tomography to Explore the Microstructure of Materials in Civil Engineering: From Rocks to Concrete. Open access.

S.-J. Wang et al. (2017): Anatomically preserved "strobili" and leaves from the Permian of China (Dorsalistachyaceae, fam. nov.) broaden knowledge of Noeggerathiales and constrain their possible taxonomic affinities. Frere access, Am. J. Bot., 104: 127-149.

Geophysical Laboratory, Washington, DC: micro-XANES. Synchrotron Based Scanning Transmission X-ray Microscopy and Microspectroscopy (C-, N-, O-XANES).
Snapshot provided by the Internet Archive´s Wayback Machine.

! M.W. Westneat (2008): Advances in biological structure, function, and physiology using synchrotron X-ray imaging. In PDF, Annu. Rev. Physiol., 70: 119-142.
This expired link is available through the Internet Archive´s Wayback Machine.

Wikipedia, the free encyclopedia:
! Tomography.
! Synchrotron X-ray Tomographic Microscopy.
Category:X-ray computed tomography.
Tomografie (in German).
Computertomographie (in German).
Kategorie:Tomografie (in German).

! P.J. Withers et al. (2021): X-ray computed tomography. In PDF, Nature Reviews Methods Primers, 1.
See also here.

! A. Ziegler et al. (2010): Opportunities and challenges for digital morphology. In PDF, Biology Direct.

M. Zuber et al. (2017): Augmented laminography, a correlative 3D imaging method for revealing the inner structure of compressed fossils. Sci. Rep., 7: 41413.

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