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Figure 10 in X-ray microcomputed and synchrotron tomographic analysis of the basicranial axis of emydopoid dicynodonts: implications for fossoriality and phylogeny

Figure 10. The lateral and occipital portions of the braincase of Kaaeingasaurus fossilis (GPIT-PV-117032): epipterygoid (light pink) in (A) anterior and (B) right lateral views; exoccipital (pink) in (C) anterior view; supraoccipital (dark green) in (D) anterior, (E) posterior, (F) left lateral and (G) medial views; prootic (blue) in (H) anterior, (I) lateral, (J), medial and (K) posterior views; opisthotic (golden) in (L) anterior, (M) medial and (M) posterior views. ascc, attachment of the anterior semicircular canal; cc, attachment of the crus communis; eo, exoccipital; eoc, exoccipital condyle; eocr, exoccipital descending crest; eodc, exoccipital dorsal component; epap, anteromedial angular process of the epipterygoid; epar, ascending ramus of the epipterygoid; epft, epipterygoid footplate; fa, facial foramen; flo, floccular fossa; fo, fenestra ovalis; fm, foramen magnum; ihb, impressions of the hindbrain; jf, jugular foramen; lscc, attachment of the lateral semicircular canal; nc, nuchal crest; oae, opisthotic anterior depression; od, opisthotic posterior depression; opc, opisthotic posterior crests; pa, pila antotica; pabt, prootic anterior buttress; pade, pila antotica ellipsoidal depression; pard, pila antotica anterodorsally directed ridges; pbg, prootic anterior bulge; pg, prootic anterior groove; plbt, prootic lateral vertical buttress; pmbt, prootic medial vertical buttress; prs?, prootic sinus; pscc, attachment of the posterior semicircular canal; ptf, posttemporal fenestra; pvfo, prootic vertical fossa; sacr, crests of the supraoccipital ala; saex, medial excavation of the supraoccipital lateral ala; sfo, supraoccipital posterior fossa; sap, supraoccipital anterior process of the median lobe; slr, supraoccipital lateral recess; sor, supraoccipital anterior oblique ridges; spp, supraoccipital posterior process; su, supraoccipital; tgn, passage of the cranial nerve (V); ve, vestibular area. Scale bars equal 1 mm. The first scale serves for (A-B), the second for (C-G) and the third for (H-N).

Figure 4 in X-ray microcomputed and synchrotron tomographic analysis of the basicranial axis of emydopoid dicynodonts: implications for fossoriality and phylogeny

Figure 4. The ventral and posterior walls of the braincase of Pristerodon mackayi (BP/1/2642): basioccipital (lime green) in (A) posterior, (B) dorsal, (C) ventral and (D) right lateral views; exoccipital (pink) in (E) anterior and (F) posterior views; and supraoccipital (dark green) in (G) anterior, (H) internal, (I) right lateral and (J) anterolateral views. ascc, attachment of the anterior semicircular canal; boc, basioccipital condyle; bocc, basioccipital condyle dorsal concavities; bocex, basioccipital collar-like excavation; bocf, basioccipital condyle foramina; bocr, basioccipital condyle median ridge; bomr, basioccipital median ridge; bosr, basioccipital lateral ridges; bovtr, basioccipital ventral trough; bt, basioccipital tubera; cca, attachment of the crus communis; eo, exoccipital; eoat, exoccipital anterior tuberosity; eobg, exoccipital posterior bulge; eobt, exoccipital subvertical buttress; eoc, exoccipital condyle; eodc, exoccipital dorsal component; flo, floccular fossa; fm, foramen magnum; fo, fenestra ovalis; ite, intertuberal eminence; jf, jugular foramen; ms, M-like suture between the basioccipital and exoccipital; pa, pila antotica; pbs, parabasisphenoid; pr, prootic; ptf, posttemporal fenestra; sap, supraoccipital anteriorly projected crest; sar, supraoccipital anterior recess; slr, supraoccipital lateral recess; sor, supraoccipital anterior horizontal ridges; spp, supraoccipital posterior process; su, supraoccipital; ve, vestibule. Note that the articular surface of the parabasisphenoid is black squared pattern in C. Scale bars equal 5 mm. The first scale serves for (A-D), the second for (E-F) and the third for (G-J).

Figure 2 in X-ray microcomputed and synchrotron tomographic analysis of the basicranial axis of emydopoid dicynodonts: implications for fossoriality and phylogeny

Figure 2. Comparisons of the braincase between Pristerodon and emydopoids. Pristerodon mackayi (BP/1/2642) in (A) anterior, (B) left lateral, (C) posterior and (D) ventral views. Myosaurus gracilis (BP/1/2690) in (E) anterior, (F) left lateral, (G) posterior and (H) ventral views. The Malawian cistecephalid (DMMM-PK-16-1) in (I) anterior, (J) left lateral, (K) posterior and (L) ventral views. Kaaeingasaurus fossilis (GPIT-PV-117032) in (M) anterior, (N) left lateral, (O) posterior and (P) ventral views. Dark green – supraoccipital; Purple – orbitosphenoid; Dark orange – opisthotic; Light orange – pterygoid; Green – basioccipital; Magenta – exoccipital; Cyan blue – parasphenoid rostrum; Navy blue – prootic; Aqua blue – basisphenoid; Light Rose – epipterygoid. Same color code scheme is used in the following figures.

Figure 1 in X-ray microcomputed and synchrotron tomographic analysis of the basicranial axis of emydopoid dicynodonts: implications for fossoriality and phylogeny

Figure 1. Illustration of the braincase region within the entire skull. Pristerodon mackayi (BP/1/2642) in (A) right lateral, (B) posterior and (C) ventral views. Myosaurus gracilis (BP/1/2690) in (D) right lateral, (E) posterior and (F) ventral views. The Malawian cistecephalid (DMMM-PK-16-1) in (G) left lateral and (H) posterior views. Kaaeingasaurus fossilis (GPIT-PV-117032) in (I) right lateral, (J) posterior and (K) ventral views. Note that the Malawian cistecephalid specimen is completely covered by matrix, such that a good contrast to enable the visibility of the skull was not obtained. Dark green – supraoccipital; Purple – orbitosphenoid; Dark orange – opisthotic; Light orange – pterygoid; Green – basioccipital; Magenta – exoccipital; Cyan blue – parasphenoid rostrum; Navy blue – prootic; Aqua blue – basisphenoid; Light Rose – epipterygoid.

Figure 7 in X-ray microcomputed and synchrotron tomographic analysis of the basicranial axis of emydopoid dicynodonts: implications for fossoriality and phylogeny

Figure 7. The posteroventral braincase wall of Myosaurus gracilis (BP/1/2690 and BP/1/2701a): basioccipital (lime green) in (A) posterior, (B) dorsal, (C) ventral and (D) right lateral views; the exoccipital (pink) in (E) anterior, (F) posterior, (G) dorsal and (H) ventromedial views; supraoccipital (dark green) in (I) anterior, (J) posterior, (K) ventral and (L) dorsal views; prootic (blue) in (M) anterior, (N) left lateral, (O) medial, (P) dorsal and (Q) posterior views; (R) the complete braincase of BP/1/2690 in left lateral view; opisthotic (golden) of BP/1/2690 in (S) anterior and (T) posterior views; right opisthotic of BP/1/2701a in (U) posterior view; the braincase of BP/1/2690 in (V) ventral view. ap, alar process of the prootic; ascc, attachment of the anterior semicircular canal; bo, basioccipital; boc, basioccipital condyly; bocc, basioccipital condyle concavities; bod, basioccipital ventral depression; bocdr, basioccipital condyle dorsal ridge; bomr, basioccipital median ridge; bonf, basioccipital nutritive foramina; bosr, basioccipital lateral ridges; bt, basioccipital tubera; CNV, passage of the cranial nerve five (V); eo, exoccipital; eoat, exoccipital anterior tuberosity; eoc, exoccipital condyle; eodc, exoccipital dorsal component; eopsu, exoccipital posterior sulcus; fa, facial foramen; flo, floccular fossa; fm, foramen magnum; fo, fenestra ovalis; gp, gap between the prootic and the clinoid process; hf, hypoglossal foramen; jf, jugular foramen; lscc, attachment of the lateral semicircular area; lvb, opisthotic lateral vertical buttress; ob, opisthotic body; obu, opisthotic bulges; occp, occipital pit; olc, opisthotic lateral crest; omc, opisthotic medial crest; op, opisthotic; opmb, opisthotic posteromedial buttress; osu, opisthotic posterior vertical sulcus; ovmp, opisthotic ventromedial process; pa, pila antotica; pabt, prootic anterior buttress; pbs, parabasisphenoid; ppex, prootic posterior excavation; pr, prootic; prac, pila antotica anterior crests; prmc, prootic medial crest; prpb, prootic posterior bulge; pscc, attachment of the posterior semicircular canal; pt, pterygoid; ptf, posttemporal fenestra; sac, supraoccipital semicircular crests; sap, supraoccipital anteriorly projected crest; slr, supraoccipital lateral recess; smb, supraoccipital subvertical buttress; spi, supraoccipital posterior pit; su, supraoccipital; svd, supraoccipital posterior vertical depressions; ve, vestibular area. The horizontal square pattern in (O) represents the sutural area between the prootic and supraoccipital; the horizontal line pattern in (O, Q) represents the articular surface between the prootic and the opisthotic and the oblique pattern in (O) represents the articular surface between the prootic and the parabasisphenoid. Finally, the vertical pattern in (S), represents the articular surface for the prootic on the opisthotic. Scale bars equal 5 mm. The first scale serves for (A-H), the second for (I-L), the third for (M-Q, S, T, V), the fourth for (R) and the fifth for (U).

Figure 3 in X-ray microcomputed and synchrotron tomographic analysis of the basicranial axis of emydopoid dicynodonts: implications for fossoriality and phylogeny

Figure 3. The complete and separated braincase elements of Pristerodon mackayi (BP/1/2642): orbitosphenoid in (A) anterior, (B) dorsal and (C) left lateral views; complete braincase in (D) anterior, (E) dorsal, (F) ventral, (G) occipital and (H) left lateral views; parabasisphenoid in (I) dorsal, (J) right lateral and (K) ventral views. aptr, anterior (palatal) ramus of the pterygoid; bo, basioccipital; bpdc, basisphenoidal dorsal subvertical concavity; bpt, basisphenoidal tubera; bpvsu, basisphenoidal ventral sulcus; clp, clinoid process; co, crista oesophagea; ds, dorsum sellae; eo, exoccipital; eobg, exoccipital posterior bulge; eobt, exoccipital subvertical buttress; epi, epipterygoid; fu, pterygoid anteroposterior furrow; hpl, horizontal plate; ic, internal carotid foramina; lvb, opisthotic lateral vertical buttress; mpw, mesethmoid posterior wall; obdn, the orbitosphenoid dorsal notch; obvp, orbitosphenoid medial vertical process; obw, orbitosphenoid wings; ofc, olfactory cavity; op, opisthotic; osu, opisthotic posterior vertical sulcus; ovmp, opisthotic ventromedial process; pab, prootic anterior bulge; pad, pila antotica anterior depression; pbs, parabasisphenoid; pdp, prootic dorsal process; pr, prootic; ps, parasphenoid rostrum; psgr, parasphenoid rostrum dorsal groove; pt, pterygoid; pt amp, anteromedial process of the pterygoid; pt dsu, ptergoid dorsal sulcus; ptll, pterygoid lateral lamina; ptlp, pterygoid lateral process; ptmp, pterygoid median plate; pt nt, pterygoid anteroposterior notch; ptqr, pterygoid quadrate ramus; ptvt, pterygoid ventral trench; sap, supraoccipital anteriorly projected crest; sar, supraoccipital anterior recess; slr, supraoccipital lateral recess; sor, supraoccipital anterior horizontal ridges; spp, supraoccipital posterior process; su, supraoccipital; stu, sella turcica; tse, tuberculum sellae. Scale bars equal 5 mm. The first scale serves for (A-C), the second for (D-H) and the third for (I-K).

Figure 12 in X-ray microcomputed and synchrotron tomographic analysis of the basicranial axis of emydopoid dicynodonts: implications for fossoriality and phylogeny

Figure 12. Phylogenetic results simplified to highlight Emydopoidea intra- and interrelationships. Numbers at nodes represent: Symmetric Resampling values/CG values above nodes; Bremer Support values/Relative Bremer Support values below nodes. See the Supporting Information (Figs S1–S3) for the complete tree.

Figure 9 in X-ray microcomputed and synchrotron tomographic analysis of the basicranial axis of emydopoid dicynodonts: implications for fossoriality and phylogeny

Figure 9. The anterior and ventral portions of the braincase of Kaaeingasaurus fossilis (GPIT-PV-117032): orbitosphenoid (purple) in (A) anterior, (B) dorsal and (C) left lateral views; basioccipital (lime green), parabasisphenoid (light blue) and pterygoid (yellow) in (D) dorsal, (E) left lateral and (F) ventral views; parabasisphenoid in (G) ventral view; and basioccipital in (H) posterior view. Horizontal CT-image through the parabasisphenoid and basioccipital (I). aptr, anterior (palatal) ramus of the pterygoid; bo, basioccipital; boc, basioccipital condyle; bocf, basioccipital longitudinal furrow; bolp, basioccipital lateral process; bovr, basioccipital median ridge; bovs, basioccipital vestibular space; bpt, basisphenoidal tubera; bt, basioccipital tubera; bvex, basioccipitalbasisphenoidal ventral excavation; clp, clinoid process; ds, dorsum sellae; dsu, orbitosphenoid dorsal sulcus; ic, internal carotid foramina; jf, jugular foramen; obasu, orbitosphenoid lateral sulci; obgu, orbitosphenoid dorsal gutter; obno, lateral notch; obpl, orbitosphenoid dorsal plate; obvp, orbitosphenoid medial vertical process; obw, orbitosphenoid wings; ofc, olfactory cavity; pbs, parabasisphenoid; psgr, parasphenoidal groove; pt, pterygoid; ptqr, posterior (quadrate) ramus of the pterygoid; stu, sella turcica; tra, trabecular spaces; ve, vestibule. Note that the articular surface of the exoccipital is represented by the horizontal square pattern in (D). The upper scale bar equals 5 mm and 1 mm in the lower. The upper scale serves for (A-C) and the lower for (D-H).

Figure 6 in X-ray microcomputed and synchrotron tomographic analysis of the basicranial axis of emydopoid dicynodonts: implications for fossoriality and phylogeny

Figure 6. The anterior, ventral and lateral walls of the braincase of Myosaurus gracilis (BP/1/2690 and BP/1/2701a): orbitosphenoid (purple) of BP/1/2690 in (A) anterior, (B) dorsal and (C) right lateral views; the pterygoid (yellow) of BP/1/2690 in (D) dorsal, (E) right lateral and (F) ventral views; ventral braincase floor of BP/1/2701a in (G) dorsal and (H) right lateral views; epipterygoid (pink) of BP/1/2701a in (I) anterior, (J) right lateral and (K) medial views; and the parabasisphenoid (turquoise) of BP/1/2690 in (L) dorsal, (M) left lateral and (N) ventral views. apf, pterygoid anteroposterior furrow; aptr, anterior (palatal) ramus of the pterygoid; bpt, basisphenoidal tubera; clp, clinoid process; co, crista oesophagea; ds, dorsum sellae; epar, epipterygoid ascending ramus; epdp, epipterygoid dorsal plate; epft, epipterygoid footplate; ic, internal carotid foramina; ltcr, oblique crests of the lateral wall; obacr, orbitosphenoid vertical crest; obasu, lateral sulci of the median vertical process; obdfo, orbitosphenoid dorsal fossa; obgu, orbitosphenoid gutter; obvp, orbitosphenoid vertical process; obsp, orbitosphenoid spine process; obw, orbitosphenoid wings; ofc, olfactory cavity; PRB, parasphenoid rostrum + basipresphenoid; ps, parasphenoid (light blue) rostrum; psc, parasphenoidal crests; psf, parasphenoidal foramen; pss, parasphenoidal sulcus; pt amp, anteromedial process of the pterygoid; pt gr, pterygoid dorsal groove; ptmp, pterygoid median plate; ptqr, quadrate ramus of the pterygoid; stu, sella turcica. Scale bars equal 5 mm. The first scale serves for (A-C), the second for (D-F), the third for (G-H), the fourth for (I-K) and the fifth for (L-N).

Figure 8 in X-ray microcomputed and synchrotron tomographic analysis of the basicranial axis of emydopoid dicynodonts: implications for fossoriality and phylogeny

Figure 8. The braincase of the Malawian cistecephalid DMMM-PK-16-1: ventral region of the braincase in (A) dorsal, (B) right lateral and (C) ventral views; the left exoccipital (pink) in (D) anterior and (E) posterior views; and right exoccipital (pink) in (F) medial view. Anterior wall: right prootic (blue) in (G) ventrolateral, (H) anterior; (I) lateral, (J) medial, (K) ventral and (L) posterior views. Posterior wall of the braincase: opisthotic (golden) and supraoccipital (dark green) in (M) anterior, (O) posterior and (P) right lateral views; opisthotic in (N) medial view. ap, alar process of the prootic; aptr, anterior (palatal) pterygoid ramus; ascc, attachment of the anterior semicircular canal; bo, basioccipital (lime green); boc, basioccipital condyle; bod, basioccipital ventral depression; bok, basioccipital dorsal knob; bosr, basioccipital lateral ridges; bplr, basisphenoidal lateral recess; cc, attachment of the crus communis; clp, clinoid process; co, crista oesophagea; ds, dorsum sellae; eoat, exoccipital anterior tuberosity; eodc, exoccipital dorsal component; eopsu, exoccipital posterior sulcus; epi, epipterygoid; fa, facial foramen; flo, floccular fossa; fm, foramen magnum; fo, fenestra ovalis; gap, gap between the prootic and the parabasisphenoid; hf, hypoglossal foramen; ic, internal carotid foramina; jf, jugular foramen; lscc, attachment of the lateral semicircular canal; oac, opisthotic anterior crests; oad, opisthotic anterior depression; obg, opisthotic anterior bulge; od, opisthotic posterior depression; op, opisthotic; opc, opisthotic posterior crests; opp, opisthotic posterior process; ovmp, opisthotic ventromedial process; pa, pila antotica; pbl, prootic blade-like process; pbs, parabasisphenoid; pr, prootic; ps, parasphenoid rostrum; pss, parasphenoid rostrum dorsal sulcus; pssc, attachment of the posterior semicircular canal; pt, pterygoid; ptf, posttemporal fenestra; pt ltr, pterygoid lateral trench; ptqr, pterygoid quadrate ramus; pt vsc, pterygoid ventral sulcus; sap, supraoccipital anteriorly projected crest; slr, supraoccipital lateral recess; sp, supraoccipital; ssd, supraoccipital semicircular depressions; su, supraoccipital; stu, sella turcica; tgn, passage of the trigeminal nerve (V); tmp, 'tympanic process' of Cox (1959); us, U-shaped suture; uz, unossified zone; ve, vestibular area. Scale bars equal 5 mm, except for (G) which equals to 1 mm. The first scale serves for (A-C), the second for (D-F), the third for (G), the fourth for (H-L) and the fifth for (M-P).

publicDec 2018View details →

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Data from: Location of water in fresh sugarcane bagasse observed by synchrotron X-ray microtomography

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Experimental variation in the spatial deposition of trace metals in feathers revealed using synchrotron x-ray fluorescence

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publicSep 2021View details →

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Data from: Synchrotron X-ray tomographic microscopy of fossil embryos

Fossilized embryos from the late Neoproterozoic and earliest Phanerozoic have caused much excitement because they preserve the earliest stages of embryology of animals that represent the initial diversification of metazoans. However, the potential of this material has not been fully realized because of reliance on traditional, non-destructive methods that allow analysis of exposed surfaces only, and destructive methods that preserve only a single two-dimensional view of the interior of the specimen. Here, we have applied synchrotron-radiation X-ray tomographic microscopy (SRXTM), obtaining complete three-dimensional recordings at submicrometre resolution. The embryos are preserved by early diagenetic impregnation and encrustation with calcium phosphate, and differences in X-ray attenuation provide information about the distribution of these two diagenetic phases. Three-dimensional visualization of blastomere arrangement and diagenetic cement in cleavage embryos resolves outstanding questions about their nature, including the identity of the columnar blastomeres. The anterior and posterior anatomy of embryos of the bilaterian worm-like Markuelia confirms its position as a scalidophoran, providing new insights into body-plan assembly among constituent phyla. The structure of the developing germ band in another bilaterian, Pseudooides, indicates a unique mode of germ-band development. SRXTM provides a method of non-invasive analysis that rivals the resolution achieved even by destructive methods, probing the very limits of fossilization and providing insight into embryology during the emergence of metazoan phyla.

opencc-zeroDec 2011View details →

dryad28/100

Data from: The interaction of fatigue cracks with a residual stress field using thermoelastic stress analysis and synchrotron x-ray diffraction experiments

This article presents an experimental study on the fatigue behaviour of cracks emanating from cold-expanded holes utilising thermoelastic stress analysis (TSA) and synchrotron x-ray diffraction (SXRD) techniques with the aim of resolving the long-standing ambiguity in the literature regarding potential relaxation, or modification, of beneficial compressive residual stresses as a result of fatigue crack propagation. The crack growth rates are found to be substantially lower as the crack tip moved through the residual stress zone induced by cold expansion. The TSA results demonstrated that the crack tip plastic zones were reduced in size by the presence of the residual compressive stresses induced by cold expansion. The crack tip plastic zones were found to be insignificant in size in comparison to the residual stress zone resulting from cold expansion, which implied that they were unlikely to have had a notable impact on the surrounding residual stresses induced by cold expansion. The residual stress distributions measured along the direction of crack growth, using SXRD, showed no signs of any significant stress relaxation or redistribution, which validates the conclusions drawn from the TSA data. Fractographic analysis qualitatively confirmed the influence on crack initiation of the residual stresses induced by the cold expansion. It was found that the application of single compressive overload caused a relaxation, or reduction in the residual stresses, which has wider implications for improving the fatigue life.

opencc-zeroDec 2016View details →

opencc-by-4.0Aug 2018View details →

Text-fig. 12. Silutanispermum kvacekiorum gen. et sp. nov. seeds from the Early Cretaceous Famalicão locality (sample 025), Portugal; Synchrotron radiation X-ray tomographic microscopy (SRXTM, orthoslices). a) Longitudinal orthoslice (yz1170) through the median plane of the seed (S170238) in the micropylar region showing exotestal cells lining the micropylar slit (mi) and hilum (hi); note the well-preserved mesotestal cells (me). b) Longitudinal orthoslice (xz0805) of seed perpendicular to the median plane through the micropylar region showing the transverse micropylar slit (mi) lined by radiating exotestal cells; note abundant mesotestal cells (me). c) Transverse orthoslice (xy0768) through seed below hilum and micropyle showing exotesta (ex) and mesotesta (me) that is strongly developed along the raphe (ra) (S174352). d) Transverse orthoslice (xy2113) through middle of the seed showing well-preserved cellular nutritive tissue with empty cells; note that the raphe (ra) is enclosed in mesotestal tissue (S174352). e) Longitudinal orthoslice (yz0970) through seed coat showing exotesta (ex) of tall palisade-shaped cells and thick mesotesta (me) of low cells (S174352). Scale bars = 500 µm (a, c, d); 250 µm (b); 125 µm (e). in Extinct Taxa Of Exotestal Seeds Close To Austrobaileyales And Nymphaeales From The Early Cretaceous Of Portugal

Text-fig. 12. Silutanispermum kvacekiorum gen. et sp. nov. seeds from the Early Cretaceous Famalicão locality (sample 025), Portugal; Synchrotron radiation X-ray tomographic microscopy (SRXTM, orthoslices). a) Longitudinal orthoslice (yz1170) through the median plane of the seed (S170238) in the micropylar region showing exotestal cells lining the micropylar slit (mi) and hilum (hi); note the well-preserved mesotestal cells (me). b) Longitudinal orthoslice (xz0805) of seed perpendicular to the median plane through the micropylar region showing the transverse micropylar slit (mi) lined by radiating exotestal cells; note abundant mesotestal cells (me). c) Transverse orthoslice (xy0768) through seed below hilum and micropyle showing exotesta (ex) and mesotesta (me) that is strongly developed along the raphe (ra) (S174352). d) Transverse orthoslice (xy2113) through middle of the seed showing well-preserved cellular nutritive tissue with empty cells; note that the raphe (ra) is enclosed in mesotestal tissue (S174352). e) Longitudinal orthoslice (yz0970) through seed coat showing exotesta (ex) of tall palisade-shaped cells and thick mesotesta (me) of low cells (S174352). Scale bars = 500 µm (a, c, d); 250 µm (b); 125 µm (e).

opencc-by-4.0Aug 2009View details →

Figure 18 in Phase contrast X-ray synchrotron microtomography and the oldest damselflies in amber (Odonata: Zygoptera: Hemiphlebiidae)

Figure 18. Jordanhemiphlebia electronica Kaddumi gen. et sp. nov., holotype, apical half of wing. Scale bar = 1 mm.

opencc-by-4.0Aug 2009View details →

Figure 12 in Phase contrast X-ray synchrotron microtomography and the oldest damselflies in amber (Odonata: Zygoptera: Hemiphlebiidae)

Figure 12. Electrohemiphlebia barucheli gen. et sp. nov., holotype ARC 372.1, nodal region of forewing.

opencc-by-4.0Aug 2009View details →

Figure 14 in Phase contrast X-ray synchrotron microtomography and the oldest damselflies in amber (Odonata: Zygoptera: Hemiphlebiidae)

Figure 14. Electrohemiphlebia barucheli gen. et sp. nov., holotype ARC 372.1, apical part of forewing.

opencc-by-4.0Dec 2022View details →

Text-fig. 36. Synchrotron radiation X-ray tomographic microscopy (SRXTM, a–e) images of "Paisia-like follicle"; Catefica locality, Portugal. a, b) Volume rendering of follicle in lateral (a) and ventral (b) views showing the decurrent stigmatic region that extends from the follicle base to the apex but lacks a distinct papillate zone; c) Longitudinal section (volume rendering cut at orthoslice yz0341) of follicle showing under-developed ovules towards the base and numerous well-developed ovules/seeds in the upper part suggesting that the follicle is probably mature; d) Dorsal view of follicle apex showing the cleft in the presumed stigmatic apical region; e) Transverse section (orthoslice xy1294) of follicle with one dorsal and two ventral bundles and two placentae bulging into the locule, one on either side of the ventral suture; note the strongly compressed outer epidermis and the homogenized cells of the mesocarp. Specimen, Catefica 49-S174915 (a–e). Scale bars = 300 Μm (a–d), 100 Μm (e). in The Early Cretaceous Mesofossil Flora Of Catefica, Portugal: Angiosperms

Text-fig. 36. Synchrotron radiation X-ray tomographic microscopy (SRXTM, a–e) images of "Paisia-like follicle"; Catefica locality, Portugal. a, b) Volume rendering of follicle in lateral (a) and ventral (b) views showing the decurrent stigmatic region that extends from the follicle base to the apex but lacks a distinct papillate zone; c) Longitudinal section (volume rendering cut at orthoslice yz0341) of follicle showing under-developed ovules towards the base and numerous well-developed ovules/seeds in the upper part suggesting that the follicle is probably mature; d) Dorsal view of follicle apex showing the cleft in the presumed stigmatic apical region; e) Transverse section (orthoslice xy1294) of follicle with one dorsal and two ventral bundles and two placentae bulging into the locule, one on either side of the ventral suture; note the strongly compressed outer epidermis and the homogenized cells of the mesocarp. Specimen, Catefica 49-S174915 (a–e). Scale bars = 300 Μm (a–d), 100 Μm (e).