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Text-fig. 9. Revultex impression of a siliceous concretion NM L 31967. A – an assemblage of three specimens of Barrandicella cf. tarda (PERNER, 1903); a – indeterminate early shell (? Barrandicella sp.), b – Mytoconula sp., ×...... B – Mytoconula sp., obligue left lateral view of an early shell just after landing on the Barrandicella surface, with a narrow flat rim of initial teleoconch shell, probably pressed down by sediment, ×......; C – the same, obligue left lateral view, ×......; D – the same, oblique right posterolateral view showing increments in the early shell, ×....... Dobrotivá F., PrahaŠárka. in Patelliconus Horný, 1961 And Mytoconula Gen. N. (Mollusca, Tergomya) From The Ordovician Of Perunica
Text-fig. 9. Revultex impression of a siliceous concretion NM L 31967. A – an assemblage of three specimens of Barrandicella cf. tarda (PERNER, 1903); a – indeterminate early shell (? Barrandicella sp.), b – Mytoconula sp., ×...... B – Mytoconula sp., obligue left lateral view of an early shell just after landing on the Barrandicella surface, with a narrow flat rim of initial teleoconch shell, probably pressed down by sediment, ×......; C – the same, obligue left lateral view, ×......; D – the same, oblique right posterolateral view showing increments in the early shell, ×....... Dobrotivá F., PrahaŠárka.
Text-fig. 8. Mytoconula vonkai sp. n. Specimen NM L 38914, internal mould with patches of shell. A – apical view, ×......; B – oblique posterior view showing radial ribs on internal mould, ×......; C – anteri- or part with a large patch of shell with irregular incremental structures, ×......; D – left lateral view, ×......;. Dobrotivá F., Malé Přílepy. in Patelliconus Horný, 1961 And Mytoconula Gen. N. (Mollusca, Tergomya) From The Ordovician Of Perunica
Text-fig. 8. Mytoconula vonkai sp. n. Specimen NM L 38914, internal mould with patches of shell. A – apical view, ×......; B – oblique posterior view showing radial ribs on internal mould, ×......; C – anteri- or part with a large patch of shell with irregular incremental structures, ×......; D – left lateral view, ×......;. Dobrotivá F., Malé Přílepy.
Text-fig. 3. Patelliconus primulus (BARRANDE in PERNER, 1903). Specimen NM L 39616, internal mould. A – apical view, B – oblique left posterolateral view, both ×......; C – right posterolateral view showing the second and third successive positions of muscle band (arrowed), located on top of each elevation (= in the deepest place of the wide depression of shell interior at the periphery of a flat ramp), ×....... Šárka F., Volduchy – Díly near Rokycany. in Patelliconus Horný, 1961 And Mytoconula Gen. N. (Mollusca, Tergomya) From The Ordovician Of Perunica
Text-fig. 3. Patelliconus primulus (BARRANDE in PERNER, 1903). Specimen NM L 39616, internal mould. A – apical view, B – oblique left posterolateral view, both ×......; C – right posterolateral view showing the second and third successive positions of muscle band (arrowed), located on top of each elevation (= in the deepest place of the wide depression of shell interior at the periphery of a flat ramp), ×....... Šárka F., Volduchy – Díly near Rokycany.
Figures 11–16. Pacuvia lectotypes. 11. Pacuvia castanea Curtis, 1844 dorsal habitus. 12. Pacuvia castanea oblique habitus. 13. Pacuvia castanea labels. 14. Pacuvia gayana Solier, 1851 dorsal habitus. 15. Pacuvia gayana oblique habitus. 16 in Review of the genus Pacuvia Curtis, 1844 (Coleoptera: Scarabaeidae: Melolonthinae: Diplotaxini)
Figures 11–16. Pacuvia lectotypes. 11. Pacuvia castanea Curtis, 1844 dorsal habitus. 12. Pacuvia castanea oblique habitus. 13. Pacuvia castanea labels. 14. Pacuvia gayana Solier, 1851 dorsal habitus. 15. Pacuvia gayana oblique habitus. 16. Pacuvia gayana labels.
Fig. 41. Character 57, oblique lateral stripe structure. A in PHYLOGENETIC SYSTEMATICS OF DART-POISON FROGS AND THEIR RELATIVES (AMPHIBIA: ATHESPHATANURA: DENDROBATIDAE)
Fig. 41. Character 57, oblique lateral stripe structure. A: State 0, solid (pulchripectus, AMNH 137290). B: State 1, series of spots (mertensi, ICN 43698). C: State 2, diffuse (trilineatus, AMNH 171974).
Fig. 40. Character 56, oblique lateral stripe length. A in PHYLOGENETIC SYSTEMATICS OF DART-POISON FROGS AND THEIR RELATIVES (AMPHIBIA: ATHESPHATANURA: DENDROBATIDAE)
Fig. 40. Character 56, oblique lateral stripe length. A: State 0, partial (panamensis, AMNH 69836, photo by R. Zweifel). B: State 1, complete (fraterdanieli, MHNUC 364).
Figure 1-6. Oblique view. 1-2 in Three new species of Paragnorimus Becker from Central America (Coleoptera: Scarabaeidae: Cetoniinae: Trichiini) with a redefinition of the genus
Figure 1-6. Oblique view. 1-2) Paragnorimus hondurensis. 1) Male. 2) Female.3-4) Paragnorimus howdeni. 3) Male. 4) Female. 5-6) Paragnorimus atratus. 5) Male. 6) Female.
FIGS. 10–17. Nopsides ceralbonus Chamberlin, male. 10. Habitus, dorsal view. 11. Same, ventral view. 12. Carapace, dorsal view. 13. Same, oblique view. 14. Same, lateral view. 15. Ocular region, dorsal view. 16. Same, anterior view. 17 in The Haplogyne Spider Genus Nopsides (Araneae, Caponiidae), with Notes on Amrishoonops
FIGS. 10–17. Nopsides ceralbonus Chamberlin, male. 10. Habitus, dorsal view. 11. Same, ventral view. 12. Carapace, dorsal view. 13. Same, oblique view. 14. Same, lateral view. 15. Ocular region, dorsal view. 16. Same, anterior view. 17. Cheliceral stridulatory file, lateral view.
Text-fig. 1. Scanning electron micrographs of Mugideiriflora portugallica gen. et sp. nov. from the Early Cretaceous Catefica locality, Portugal (holotype, S174254, Catefica sample 150). a) Flower in oblique lateral view showing numerous broad tepals, numerous inwardly curved stamens and the flat floral receptacle with a conical gynoecial region; b–c) Flower in two different oblique apical views showing numerous broad laminar tepals and inwardly curved stamens surrounding the carpels; note cellular differences between outer (op) and inner (in) perianth parts, as well as bases of anthers, apparently with laterally to slightly dorsally placed pollen sacs (arrow heads); d) Detail of flower showing a cluster of poorly differentiated carpels in the center surrounded by elongated stamens; note grooves in the dorsal surface of the stamens indicating the position of the pollen sacs; e) Detail of flower showing the broad bases of the laminar tepals, rhomboidal stamen bases and poorly differentiated carpels; f) Detail of flower showing inwardly arched stamens and poorly differentiated carpels. Scale bars = 1 mm (a–c), 200 µm (d–f). in Multiparted, Apocarpous Flowers From The Early Cretaceous Of Eastern North America And Portugal
Text-fig. 1. Scanning electron micrographs of Mugideiriflora portugallica gen. et sp. nov. from the Early Cretaceous Catefica locality, Portugal (holotype, S174254, Catefica sample 150). a) Flower in oblique lateral view showing numerous broad tepals, numerous inwardly curved stamens and the flat floral receptacle with a conical gynoecial region; b–c) Flower in two different oblique apical views showing numerous broad laminar tepals and inwardly curved stamens surrounding the carpels; note cellular differences between outer (op) and inner (in) perianth parts, as well as bases of anthers, apparently with laterally to slightly dorsally placed pollen sacs (arrow heads); d) Detail of flower showing a cluster of poorly differentiated carpels in the center surrounded by elongated stamens; note grooves in the dorsal surface of the stamens indicating the position of the pollen sacs; e) Detail of flower showing the broad bases of the laminar tepals, rhomboidal stamen bases and poorly differentiated carpels; f) Detail of flower showing inwardly arched stamens and poorly differentiated carpels. Scale bars = 1 mm (a–c), 200 µm (d–f).
Text-fig. 36. Scanning electron microscope (SEM) images of flower of Eckhartianthus lusitanicus gen. et sp. nov.; Torres Vedras locality, Portugal. a) Holotype; oblique lateral view of hypogynous flower showing perianth surrounding the stamens and protruding gynoecium; b–d) Pollen from the flower in (a) showing single distal aperture and reticulate exine with thick muri, small lumina and short, densely spaced columellae; e) Reticulum showing thick, smooth muri supported by numerous short columellae firmly attached to the smooth surface of the foot layer. Specimen, TV39-S101306 (holotype). Scale bars 300 Μm (a), 6 Μm (b–d), 3 Μm (e). in The Early Cretaceous Mesofossil Flora Of Torres Vedras (Ne Of Forte Da Forca), Portugal: A Palaeofloristic Analysis Of An Early Angiosperm Community
Text-fig. 36. Scanning electron microscope (SEM) images of flower of Eckhartianthus lusitanicus gen. et sp. nov.; Torres Vedras locality, Portugal. a) Holotype; oblique lateral view of hypogynous flower showing perianth surrounding the stamens and protruding gynoecium; b–d) Pollen from the flower in (a) showing single distal aperture and reticulate exine with thick muri, small lumina and short, densely spaced columellae; e) Reticulum showing thick, smooth muri supported by numerous short columellae firmly attached to the smooth surface of the foot layer. Specimen, TV39-S101306 (holotype). Scale bars 300 Μm (a), 6 Μm (b–d), 3 Μm (e).
Text-fig. 4. Scanning electron microscope (SEM) images of megaspores with possible affinities to Selaginellales; Torres Vedras locality, Portugal. a, b) Hughesisporites galericulatus, lateral view of megaspore (a) with almost smooth surface and spore wall of thin elements forming a dense reticulum (b); c) Trileites sp., proximal view of megaspore with almost smooth surface and raised trilete mark; d–f) Rugotriletes sp., proximal (e) and lateral (f) views of megaspores showing coarsely reticulate-rugulate surface ornamentation and prominent gula around the trilete mark and compact perforate spore wall (d); g, h) Erlansonisporites sp., distal (g) and lateral (h) views of megaspores showing coarsely reticulate-rugulate surface and fibrous spore wall; i, j) Striatriletes sp. 1, megaspore in oblique proximal view (i) showing raised laesurae and irregular striate-rugulate surface, and detail of spore wall (j) showing dense packing of sculptural elements; k, l) Striatriletes sp. 2, megaspore in proximal view (k) showing trilete mark, striate-rugulate surface, and detail of spore wall (l) composed of loosely packed fibers; m) Striatriletes sp. 3, megaspore in proximal view showing raised trilete mark and striate-rugulate surface; n, o) Verrutriletes sp., megaspore in oblique proximal view (n) showing short laesurae of the trilete mark, and the dense verrucate surface (o); p) Megaspore sp. 1, oblique proximal view showing in The Early Cretaceous Mesofossil Flora Of Torres Vedras (Ne Of Forte Da Forca), Portugal: A Palaeofloristic Analysis Of An Early Angiosperm Community
Text-fig. 4. Scanning electron microscope (SEM) images of megaspores with possible affinities to Selaginellales; Torres Vedras locality, Portugal. a, b) Hughesisporites galericulatus, lateral view of megaspore (a) with almost smooth surface and spore wall of thin elements forming a dense reticulum (b); c) Trileites sp., proximal view of megaspore with almost smooth surface and raised trilete mark; d–f) Rugotriletes sp., proximal (e) and lateral (f) views of megaspores showing coarsely reticulate-rugulate surface ornamentation and prominent gula around the trilete mark and compact perforate spore wall (d); g, h) Erlansonisporites sp., distal (g) and lateral (h) views of megaspores showing coarsely reticulate-rugulate surface and fibrous spore wall; i, j) Striatriletes sp. 1, megaspore in oblique proximal view (i) showing raised laesurae and irregular striate-rugulate surface, and detail of spore wall (j) showing dense packing of sculptural elements; k, l) Striatriletes sp. 2, megaspore in proximal view (k) showing trilete mark, striate-rugulate surface, and detail of spore wall (l) composed of loosely packed fibers; m) Striatriletes sp. 3, megaspore in proximal view showing raised trilete mark and striate-rugulate surface; n, o) Verrutriletes sp., megaspore in oblique proximal view (n) showing short laesurae of the trilete mark, and the dense verrucate surface (o); p) Megaspore sp. 1, oblique proximal view showing
Text-fig. 5. Scanning electron microscope (SEM) images of megaspores with possible affinities to Isoetales (a–d) and megaspores of uncertain affinity (e–i); Torres Vedras locality, Portugal. a) Paxillitriletes reticulatus megaspore in lateral view showing long appendages on the flanges of the laesurae and the reticulate-spiny distal surface; b) Dijkstraisporites sp. megaspore in oblique lateral view showing long, sometimes dichotomizing, appendages on the equatorial flanges and bordering the laesurae; c, d) Tenellisporites sp. megaspore in proximal view (c) showing equatorial flanges and laesurae with short, broad, flattened and unbranched appendages; note numerous, spiny microspores adhering to the proximal face of the megaspore (d); e) Megaspore type sp. 2 in lateral view showing apical gula and ornamentation of scattered spines; f, g) Megaspore type sp. 3 in lateral (f) and proximal (g) view showing broad, often dichotomously branched appendages covering the megaspore surface; h, i) aff. Flabellisporites sp. megaspores in proximal (h) and lateral (i) view showing long, narrow appendages covering the megaspore surface. Specimens, TV39-S174619 (a), TV38-S170220 (b), TV38-S170221 (c, d), TV44-S174574 (e), TV44-S174575 (f), TV44-S174577 (g), TV38-S170223 (h), TV38-S170222 (i). Scale bars 100 Μm (a–c, e–i), 25 Μm (d). in The Early Cretaceous Mesofossil Flora Of Torres Vedras (Ne Of Forte Da Forca), Portugal: A Palaeofloristic Analysis Of An Early Angiosperm Community
Text-fig. 5. Scanning electron microscope (SEM) images of megaspores with possible affinities to Isoetales (a–d) and megaspores of uncertain affinity (e–i); Torres Vedras locality, Portugal. a) Paxillitriletes reticulatus megaspore in lateral view showing long appendages on the flanges of the laesurae and the reticulate-spiny distal surface; b) Dijkstraisporites sp. megaspore in oblique lateral view showing long, sometimes dichotomizing, appendages on the equatorial flanges and bordering the laesurae; c, d) Tenellisporites sp. megaspore in proximal view (c) showing equatorial flanges and laesurae with short, broad, flattened and unbranched appendages; note numerous, spiny microspores adhering to the proximal face of the megaspore (d); e) Megaspore type sp. 2 in lateral view showing apical gula and ornamentation of scattered spines; f, g) Megaspore type sp. 3 in lateral (f) and proximal (g) view showing broad, often dichotomously branched appendages covering the megaspore surface; h, i) aff. Flabellisporites sp. megaspores in proximal (h) and lateral (i) view showing long, narrow appendages covering the megaspore surface. Specimens, TV39-S174619 (a), TV38-S170220 (b), TV38-S170221 (c, d), TV44-S174574 (e), TV44-S174575 (f), TV44-S174577 (g), TV38-S170223 (h), TV38-S170222 (i). Scale bars 100 Μm (a–c, e–i), 25 Μm (d).
Text-fig. 15. Oblique cut marks on the mid-shaft of tibia 98-596-B (1) Př15/5 83, root traces visible on the shaft, for the metrics of this bone see Table 12. in Consumption Of Canid Meat At The Gravettian Předmostí Site, The Czech Republic
Text-fig. 15. Oblique cut marks on the mid-shaft of tibia 98-596-B (1) Př15/5 83, root traces visible on the shaft, for the metrics of this bone see Table 12.
Text-fig. 8. Middle-ear ossicles of Metacheiromys marshi, USNM-P 452349. a – left malleus (partial), incus, and stapes in ventral view; b – right malleus in oblique anterior view (left) and oblique posterior view (right). Abbreviations: acr – anterior crus, cb – crus breve, cl – crus longum, fp – footplate, iaf – inferior articular facet, ib – incudal body, lp – lateral process, mh – mallear head, mn – manubrium, mp – muscular process, n – neck, ol – osseous lamina (broken), pcr – posterior crus, sh – stapedial head, stf – stapedial foramen, suaf – superior articular facet. in Skeletal Anatomy Of The Basicranium And Auditory Region In The Metacheiromyid Palaeanodont Metacheiromys (Mammalia, Pholidotamorpha) Based On High-Resolution Ct Scans
Text-fig. 8. Middle-ear ossicles of Metacheiromys marshi, USNM-P 452349. a – left malleus (partial), incus, and stapes in ventral view; b – right malleus in oblique anterior view (left) and oblique posterior view (right). Abbreviations: acr – anterior crus, cb – crus breve, cl – crus longum, fp – footplate, iaf – inferior articular facet, ib – incudal body, lp – lateral process, mh – mallear head, mn – manubrium, mp – muscular process, n – neck, ol – osseous lamina (broken), pcr – posterior crus, sh – stapedial head, stf – stapedial foramen, suaf – superior articular facet.
Text-fig. 7. Metacheiromys marshi, USNM-P 452349, basicranium isosurface from CT scans in oblique ventral view, showing middle ear ossicles as preserved. On the specimen's left side, the ossicles are essentially in life position, with the stapes largely hidden in the fenestra vestibuli; the left malleus is broken and represented largely by the mallear head. On the specimen's right side, most of the floor of auditory bulla has been removed to expose the malleus, which has shifted posteriorly from the life position. Abbreviations: aptt – anteroventral process of tegmen tympani, bo – basioccipital, bs – basisphenoid, eam – squamosal roof of external acoustic meatus, eo – exoccipital, gf – glenoid fossa, i – incus, m – malleus, mh – mallear head, oc – occipital condyle, pr – promontorium of petrosal, sh – stapedial head, tm – part of tubular external acoustic meatus. in Skeletal Anatomy Of The Basicranium And Auditory Region In The Metacheiromyid Palaeanodont Metacheiromys (Mammalia, Pholidotamorpha) Based On High-Resolution Ct Scans
Text-fig. 7. Metacheiromys marshi, USNM-P 452349, basicranium isosurface from CT scans in oblique ventral view, showing middle ear ossicles as preserved. On the specimen's left side, the ossicles are essentially in life position, with the stapes largely hidden in the fenestra vestibuli; the left malleus is broken and represented largely by the mallear head. On the specimen's right side, most of the floor of auditory bulla has been removed to expose the malleus, which has shifted posteriorly from the life position. Abbreviations: aptt – anteroventral process of tegmen tympani, bo – basioccipital, bs – basisphenoid, eam – squamosal roof of external acoustic meatus, eo – exoccipital, gf – glenoid fossa, i – incus, m – malleus, mh – mallear head, oc – occipital condyle, pr – promontorium of petrosal, sh – stapedial head, tm – part of tubular external acoustic meatus.
Text-fig. 4. Metacheiromys marshii, AMNH 131777, basicranial isosurface from CT scans in oblique posteroventral view: left petrosal in blue and small piece of left entotympanic in red. The white arrow on the left petrosal passes through a canal traversed by the tympanic nerve. Abbreviations: abX – foramen for auricular branch of vagus nerve, aptt – anteroventral process of tegmen tympani, as – alisphenoid, bo – basioccipital, bs – basisphenoid, ctp – caudal tympanic process, eam – squamosal roof of external acoustic meatus, ec – ectotympanic, en – entotympanic, eo – exoccipital, hf – hypoglossal foramen, ips – foramen for inferior petrosal sinus, ljf – lateral jugular foramen, me – mastoid exposure of petrosal, mjf – medial jugular foramen, mt – muscular tubercle, oc – occipital condyle, pcf – posterior carotid foramen, pp – paroccipital process of petrosal, pr – promontorium of petrosal, ptp – posttympanic process of squamosal, smf – stylomastoid foramen, sq – squamosal, stf – stapedial artery foramen, tca – tympanic canaliculus, th – tympanohyal. in Skeletal Anatomy Of The Basicranium And Auditory Region In The Metacheiromyid Palaeanodont Metacheiromys (Mammalia, Pholidotamorpha) Based On High-Resolution Ct Scans
Text-fig. 4. Metacheiromys marshii, AMNH 131777, basicranial isosurface from CT scans in oblique posteroventral view: left petrosal in blue and small piece of left entotympanic in red. The white arrow on the left petrosal passes through a canal traversed by the tympanic nerve. Abbreviations: abX – foramen for auricular branch of vagus nerve, aptt – anteroventral process of tegmen tympani, as – alisphenoid, bo – basioccipital, bs – basisphenoid, ctp – caudal tympanic process, eam – squamosal roof of external acoustic meatus, ec – ectotympanic, en – entotympanic, eo – exoccipital, hf – hypoglossal foramen, ips – foramen for inferior petrosal sinus, ljf – lateral jugular foramen, me – mastoid exposure of petrosal, mjf – medial jugular foramen, mt – muscular tubercle, oc – occipital condyle, pcf – posterior carotid foramen, pp – paroccipital process of petrosal, pr – promontorium of petrosal, ptp – posttympanic process of squamosal, smf – stylomastoid foramen, sq – squamosal, stf – stapedial artery foramen, tca – tympanic canaliculus, th – tympanohyal.
Text-fig. 3. Pazlia hilaris gen. et sp. nov. (a–e) from the Early Cretaceous Famalicão locality (sample 025), Portugal (holotype, S175096) and Pazliopsis reyi gen. et sp. nov. (f–i) from the Early Cretaceous Torres Vedras locality, Portugal; Synchrotron radiation X-ray tomographic microscopy (SRXTM, volume renderings a–f, i) and scanning electron microscopy (SEM, g, h). a, b) Seed in lateral (a) and oblique apical (b) views showing the truncate hilar-micropylar region; note prominent hilar scar (hi) and micropyle (mi) at the seed apex and the raphe (ra) seen as slightly raised ridge; remains of mounting media (¤). c) Cut volume rendering (cut at yz0647) showing course of raphe (ra), hilar scar (hi) and micropyle (mi); note the strongly radially elongated cells below the hilar scar. d) Seed in antiraphal view. e) Seed surface showing the raised undulate anticlinal walls of the exotestal cells. f) Seed enclosed in remains of thin-walled fruit (fr) (S174632, Torres Vedras sample 298). g) Holotype, seed enclosed in remains of fruit (fr); raphal view showing the faintly ribbed surface of the seed (S171534, Torres Vedras sample 043). h) Apical view of seed fragment showing hilar scar (hi), position of raphe (ra) and the ribbed seed surface (S136683, Torres Vedras sample 044). i) Seed surface showing the raised undulate anticlinal walls of the exotestal cells (S171534; Torres Vedras sample 043). Scale bars = 250 µm (a–d, f–h); 125 µm (e, i). in Extinct Taxa Of Exotestal Seeds Close To Austrobaileyales And Nymphaeales From The Early Cretaceous Of Portugal
Text-fig. 3. Pazlia hilaris gen. et sp. nov. (a–e) from the Early Cretaceous Famalicão locality (sample 025), Portugal (holotype, S175096) and Pazliopsis reyi gen. et sp. nov. (f–i) from the Early Cretaceous Torres Vedras locality, Portugal; Synchrotron radiation X-ray tomographic microscopy (SRXTM, volume renderings a–f, i) and scanning electron microscopy (SEM, g, h). a, b) Seed in lateral (a) and oblique apical (b) views showing the truncate hilar-micropylar region; note prominent hilar scar (hi) and micropyle (mi) at the seed apex and the raphe (ra) seen as slightly raised ridge; remains of mounting media (¤). c) Cut volume rendering (cut at yz0647) showing course of raphe (ra), hilar scar (hi) and micropyle (mi); note the strongly radially elongated cells below the hilar scar. d) Seed in antiraphal view. e) Seed surface showing the raised undulate anticlinal walls of the exotestal cells. f) Seed enclosed in remains of thin-walled fruit (fr) (S174632, Torres Vedras sample 298). g) Holotype, seed enclosed in remains of fruit (fr); raphal view showing the faintly ribbed surface of the seed (S171534, Torres Vedras sample 043). h) Apical view of seed fragment showing hilar scar (hi), position of raphe (ra) and the ribbed seed surface (S136683, Torres Vedras sample 044). i) Seed surface showing the raised undulate anticlinal walls of the exotestal cells (S171534; Torres Vedras sample 043). Scale bars = 250 µm (a–d, f–h); 125 µm (e, i).
Text-fig. 1. Gastonispermum portugallicum gen. et sp. nov. seeds from the Early Cretaceous Famalicão locality (sample 025), Portugal; Synchrotron radiation X-ray tomographic microscopy (SRXTM, volume renderings). Note remains of mounting media on several seeds (¤). a) Seed in oblique view showing seed shape, the slightly raised raphal ridge and the position of hilum (hi) and micropyle (mi) on the raphal side of the seed (S170218). b, c) Seeds in lateral view (b, S170234; c, S175095). d–f) Holotype (S174820); seed in lateral view (d) and cut volume rendering (e, f) through the median plane of the seed showing palisade-shaped sclerenchyma cells of exotesta and remains of embryo (emb) and surrounding nutritive tissue (e, cut between yz0440-0530; f, cut between slices yz440-480). g) Hilum (hi) and micropyle (mi) of seed in (1a) showing the Y-shaped micropylar slit in the outer integument. h) Cut volume rendering through the median plane of the seed (cut at yz0492) showing seed coat mainly composed of palisade-shaped cells of the exotesta (S174435). i) Seed surface showing the raised outlines of the undulate anticlinal walls of the exotestal cells (S175045). Scale bars = 500 µm (a–e); 250 µm (g); 125 µm (f, i). in Extinct Taxa Of Exotestal Seeds Close To Austrobaileyales And Nymphaeales From The Early Cretaceous Of Portugal
Text-fig. 1. Gastonispermum portugallicum gen. et sp. nov. seeds from the Early Cretaceous Famalicão locality (sample 025), Portugal; Synchrotron radiation X-ray tomographic microscopy (SRXTM, volume renderings). Note remains of mounting media on several seeds (¤). a) Seed in oblique view showing seed shape, the slightly raised raphal ridge and the position of hilum (hi) and micropyle (mi) on the raphal side of the seed (S170218). b, c) Seeds in lateral view (b, S170234; c, S175095). d–f) Holotype (S174820); seed in lateral view (d) and cut volume rendering (e, f) through the median plane of the seed showing palisade-shaped sclerenchyma cells of exotesta and remains of embryo (emb) and surrounding nutritive tissue (e, cut between yz0440-0530; f, cut between slices yz440-480). g) Hilum (hi) and micropyle (mi) of seed in (1a) showing the Y-shaped micropylar slit in the outer integument. h) Cut volume rendering through the median plane of the seed (cut at yz0492) showing seed coat mainly composed of palisade-shaped cells of the exotesta (S174435). i) Seed surface showing the raised outlines of the undulate anticlinal walls of the exotestal cells (S175045). Scale bars = 500 µm (a–e); 250 µm (g); 125 µm (f, i).
Text-fig. 11. Silutanispermum kvacekiorum gen. et sp. nov. seeds from the Early Cretaceous Famalicão locality (sample 025), Portugal; Synchrotron radiation X-ray tomographic microscopy (SRXTM, volume renderings). a, b) Holotype (S170238), seed in oblique (a) and lateral (b) view showing large triangular hilar scar (hi) and transverse micropylar slit (mi). c) Oblique view of seed showing slightly raised raphal area (S174352); remains of mounting media (¤). d) Details of holotype showing triangular hilum (hi) and transverse micropylar slit in the exotesta (mi). e) Cut volume rendering of holotype (cut at yz1170) through the median plane showing hilum (hi) and micropylar slit (mi) lined by radially expanded exotestal cells. Scale bars = 500 µm (a–c); 250 µm (d, e). in Extinct Taxa Of Exotestal Seeds Close To Austrobaileyales And Nymphaeales From The Early Cretaceous Of Portugal
Text-fig. 11. Silutanispermum kvacekiorum gen. et sp. nov. seeds from the Early Cretaceous Famalicão locality (sample 025), Portugal; Synchrotron radiation X-ray tomographic microscopy (SRXTM, volume renderings). a, b) Holotype (S170238), seed in oblique (a) and lateral (b) view showing large triangular hilar scar (hi) and transverse micropylar slit (mi). c) Oblique view of seed showing slightly raised raphal area (S174352); remains of mounting media (¤). d) Details of holotype showing triangular hilum (hi) and transverse micropylar slit in the exotesta (mi). e) Cut volume rendering of holotype (cut at yz1170) through the median plane showing hilum (hi) and micropylar slit (mi) lined by radially expanded exotestal cells. Scale bars = 500 µm (a–c); 250 µm (d, e).
Text-fig. 7. Lusitanispermum choffatii gen. et sp. nov. seeds from the Early Cretaceous Famalicão locality (sample 025), Portugal; Synchrotron radiation X-ray tomographic microscopy (SRXTM, volume renderings). a) Holotype; seed in lateral view showing seed shape; note that the seed is broken near the lower surface of the hilum (S174345). b) Oblique apical view of micropylar-hilar region of holotype showing slightly ruptured micropylar slit (mi) in the outer integument and two bulging and abraded areas (arrow heads) close to hilum. c) Seed in oblique lateral-raphal view showing the two bulging structures (arrow heads) immediately adjacent to the lower edge of the hilum (S174472). d) Tangential, longitudinal cut (cut at yz0131) through the seed coat of seed in (7c) showing the undulate anticlinal cell walls of the exotesta cells that are thickest towards the outside and thinner towards the inside. Scale bars = 500 µm (a–c); 250 µm (d). in Extinct Taxa Of Exotestal Seeds Close To Austrobaileyales And Nymphaeales From The Early Cretaceous Of Portugal
Text-fig. 7. Lusitanispermum choffatii gen. et sp. nov. seeds from the Early Cretaceous Famalicão locality (sample 025), Portugal; Synchrotron radiation X-ray tomographic microscopy (SRXTM, volume renderings). a) Holotype; seed in lateral view showing seed shape; note that the seed is broken near the lower surface of the hilum (S174345). b) Oblique apical view of micropylar-hilar region of holotype showing slightly ruptured micropylar slit (mi) in the outer integument and two bulging and abraded areas (arrow heads) close to hilum. c) Seed in oblique lateral-raphal view showing the two bulging structures (arrow heads) immediately adjacent to the lower edge of the hilum (S174472). d) Tangential, longitudinal cut (cut at yz0131) through the seed coat of seed in (7c) showing the undulate anticlinal cell walls of the exotesta cells that are thickest towards the outside and thinner towards the inside. Scale bars = 500 µm (a–c); 250 µm (d).
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Allen Brain Atlas
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