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Psaronius

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Journal Article
Published: 01 November 1982
Journal of Paleontology (1982) 56 (6): 1494–1495.
Journal Article
Published: 01 March 1982
Journal of Paleontology (1982) 56 (2_Part_1): 459–468.
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Petrography of a  <b>Psaronius</b>  tree fern from the early Permian forest of Che...
in > PALAIOS
Published: 01 November 2012
FIGURE 1 Petrography of a Psaronius tree fern from the early Permian forest of Chemnitz. A) Polished transverse section through the central part of a Psaronius stem showing part of the central dictyostele (Dy) and the root mantle (Rm) surrounding the tree trunk. B) An example of the fine
Image
Well-preserved Morphotype 1 tree-fern trunk (cf.  <b>Psaronius</b> ), south face o...
Published: 01 January 2006
Fig. 7.  Well-preserved Morphotype 1 tree-fern trunk (cf. Psaronius ), south face of Cranberry Head. ( a ) Photograph of trunk cross-section, 55 cm above palaeosol surface; ( b ) interpretative sketch showing the axial stem, inner root mantle containing departing C-shaped petiole, and outer root
Journal Article
Journal: PALAIOS
Published: 01 November 2012
PALAIOS (2012) 27 (11): 814–834.
... measured section of the outcrop documents the early volcanic history of the Chemnitz fossil forest, including a paleosol that shows the root systems of Psaronius tree ferns, Arthropitys calamitaleans, and Medullosa and Cordaixylon gymnosperms in the same horizon. Fifty-three trunks are still standing...
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Journal Article
Published: 01 April 2008
European Journal of Mineralogy (2008) 20 (2): 217–231.
... the extinct Permo-Carboniferous arborescent plant taxa Arthropitys GOEPP., Psaronius COTTA and Dadoxylon ENDL., were studied by transmitted normal light (PPL), polarized-light (XPL), hot or scanning cathodoluminescence (CL), and electron microscopy (SEM) with energy and wavelength dispersive X-ray analysis...
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Journal Article
Journal: PALAIOS
Published: 01 June 2005
PALAIOS (2005) 20 (3): 249–265.
.... The vegetation was dominated by monospecific stands of the arborescent lycopsid Sigillaria brardii , whereas the tree fern Psaronius occurred during the later stages of mire accretion. This is in contrast to coeval North American peat mires, which generally were dominated by tree ferns and pteridosperms...
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Journal Article
Published: 01 November 2004
Geological Magazine (2004) 141 (6): 661–674.
.... The assemblage is fragmentary but contains a small sphenopsid strobilus, a partial strobilus of a lepidodendralean lycopsid, pinnae of the filicalean fern Anachoropteris and a filicalean non-laminate fertile pinna rachis, the marattialean ferns Eoangiopteris , Scolecopteris and Psaronius , hooked stems...
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Rooting structures of the fossil forest. A) Trunk base of an Arthropitys ca...
in > PALAIOS
Published: 01 November 2012
in Fig. 5B (arrow). Scale bar 3 cm. D) Tap root of a gymnosperm with several traces of lateral roots (KH0182-05). Scale bar 2.5 cm. E) Rooting base of a Psaronius tree fern in the uppermost paleosol (KH0117-04). Scale bar 10 cm. F) Small rhizoliths, several times branched, lying between large aerial
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Figure  7. Diversity of form among extinct treelike plants from the Devonia...
Published: 01 January 2005
Figure 7. Diversity of form among extinct treelike plants from the Devonian and Carboniferous (not drawn to the same scale). From left to right: Archaeopteris (an early lignophyte); Calamites (an equisetophyte); Psaronius (a marattialean “fern”), in which the trunk was formed by a mantle
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FIGURE 5 —Plant taphonomic character of roof-shales. (A) Assemblage of  Pec...
in > PALAIOS
Published: 01 June 2005
) Trunk of the tree fern Psaronius with characteristic oval leaf scars (arrows), found in roof-shales of coal seam “Brochin; ” camera cap (6 cm in diameter) for scale. (D) Autochthonous rooting system in the roof-shales of coal seam “Brochin” associated with (C); the brush-like morphology of dense roots
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Examples of fluid inclusions inside α-quartz and wedged between primary α-q...
in > PALAIOS
Published: 01 November 2012
FIGURE 2 Examples of fluid inclusions inside α-quartz and wedged between primary α-quartz crystals in adventitious roots of Psaronius from Chemnitz. A) A primary, rounded low-density inclusion inside α-quartz (former H 2 O vapor?). B–C) Other low-density inclusions, perhaps secondary, trapped
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Figure 13. Reconstruction of the peat-forming forest of the Lower Radnice C...
in > PALAIOS
Published: 01 November 2009
Figure 13. Reconstruction of the peat-forming forest of the Lower Radnice Coal in the O1–O3 excavations and their immediate proximity. A  =  Cordaites borassifolius ; B  =  Lepidodendron simile ; C  =  Lepidophloios cf. acerosus ; D  =  Lepidodendron lycopodioides , E  =  Psaronius
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Main types of tissue found in silicified wood: A – sclerenchyma (sc) in tra...
Published: 01 April 2008
Fig. 2. Main types of tissue found in silicified wood: A – sclerenchyma (sc) in transverse section; B – scanning CL of sclerenchymatous sheath (#2); C – tracheids (t) in longitudinal section; D – parenchyma (pa) in transverse section; E – PPL image of a root of Psaronius sp. (#5
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Marattialean ferns from the Shanjiaoshu tuff assemblage. Scale bars = 1 mm ...
Published: 01 November 2004
.1.16. (d) Isolated synangium in transverse section of Scolecopteris sp. showing radial organization of the synangium that contains six sporangia with thin inner walls and thicker outer walls. Gui-Tuf.1.17; scale bar = 500 mm. (e) Peel of root mantle and central vascular tissue of Psaronius sp. Gui
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Type 2a association of detritivore microcoprolites occurring with marattial...
in > PALAIOS
Published: 01 March 2015
Fig. 4.— Type 2a association of detritivore microcoprolites occurring with marattialean ( Psaronius cf. blicklei ) root-mantle tissues. A ) Inner root mantle showing tunnels ( =  t, and dotted circles and arrow), which are generally circular to subcircular in cross section. TS, BCMAG Cc. 5206
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Petrographical imprints of anatomical features, permineralizations under cr...
Published: 01 April 2008
a fissure (#16); D: agate-like structures created by μ Q and Q (#10); E: sx created by a transition from μ Q to Q (from cell walls to cell centres), SQ with a mosaic structure in lumina of larger tracheids, polyblastic texture (#6); F: fan-like SCh in the inner cortex zone of Psaronius root, μ
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Pairs of XPL (A, C) or PPL (E, G) and CL (B, D, F, H) images of  Arthropity...
Published: 01 April 2008
Fig. 4. Pairs of XPL (A, C) or PPL (E, G) and CL (B, D, F, H) images of Arthropitys #6 (A, B), Psaronius #2 (C, D) and #5 (E, F), and Dadoxylon #14, (G, H) trunks in transverse cuts. Abbreviations: t – tracheids, r – rays, μQ - microquartz, SQ – smaller megaquartz, LQ – larger megaquartz
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FIGURE 6 —Percentage composition of plant taxa recorded in roof-shales and ...
in > PALAIOS
Published: 01 June 2005
: Dicksonites ; STACH: Calamostachys ; ODONT: Odontopteris ; PECOP: Pecopteris ; PSARO: Psaronius ; SIGIL: Sigillaria ; SPHEN: Sphenopteris ; SPHYL: Sphenophyllum ; STIGM: Stigmaria . Vertical scales in centimeters
Journal Article
Journal: PALAIOS
Published: 01 November 2012
PALAIOS (2012) 27 (11): 835–841.
...FIGURE 1 Petrography of a Psaronius tree fern from the early Permian forest of Chemnitz. A) Polished transverse section through the central part of a Psaronius stem showing part of the central dictyostele (Dy) and the root mantle (Rm) surrounding the tree trunk. B) An example of the fine...
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