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Vertebraria

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Image
An example of <b>Vertebraria</b>, i.e. a root structure of a glossopterid tree, fr...
Published: 01 September 2017
Figure 11. An example of Vertebraria, i.e. a root structure of a glossopterid tree, from the top of Fan 5, west of Skoorsteenberg.
Image
Macrofloral remains. (A) Two, wide-diameter, overlapping  <b>Vertebraria</b>  root...
Published: 01 May 2014
Figure 4. Macrofloral remains. (A) Two, wide-diameter, overlapping Vertebraria rooting structures that crosscut the bedding plane at a shallow angle. Woody roots are admixed with dispersed assemblage of degraded Glossopteris leaves and other unidentifiable aerial plant debris at ∼–25–30 cm
Image
Permian plants from PHKB-1 (A–I, K–N) and CCC-27 (J) wells. (A)  Glossopter...
Published: 14 November 2019
scale leaf or microsporophyll, 1000.35 m. (G) Samaropsis sp., a possible glossopterid seed, 1039.65 m. (H) Glossopteris chevronata , 1046.37 m. (I) Lateral compression of a slender Vertebraria australis (segmented root with small subsidiary rootlets), 810.28 m. (J) Lateral compression of a broad
Journal Article
Published: 26 October 2020
South African Journal of Geology (2020) 123 (4): 465–478.
... Australoxylon natalense Marguerier, 1973 South Africa, KwaZulu Natal Ecca Group (lower Permian) Type specimen; trunk Glossopteris flora, Vertebraria , Agathoxylon Australoxylon nicolae (Silvas et al., 1967) Marguerier, 1973 Mozambique Karoo Fm (lower Permian)   Glossopteris flora...
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Journal Article
Published: 13 December 2016
Geological Magazine (2018) 155 (4): 907–920.
... to Glossopteris raniganjensis , roots referable to Vertebraria australis , seeds assigned to Samaropsis sp., sphenophyte axes ( Paracalamites australis ) and foliage ( Sphenophyllum emarginatum ), and fern foliage ( Dichotomopteris lindleyi ). This small macroflora is interpreted to be of probable Lopingian (late...
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Figure 1. Glossopterid trees from the Late Permian of Antarctica. A) Compre...
Published: 01 July 2010
Figure 1. Glossopterid trees from the Late Permian of Antarctica. A) Compressions of Glossopteris leaves. B) Weathered surface of a permineralized trunk showing clusters of young shoots sprouting from the side of the stem (arrows). C) Cross section of two roots ( Vertebraria ) showing growth
Journal Article
Journal: PALAIOS
Published: 01 December 1999
PALAIOS (1999) 14 (6): 530–544.
... Gangamopteris, interpreted as a taiga-like plant. The clastic dike-bearing coal seam occurs in mid-Permian strata that contain thicker and laterally more continuous coals than found in Early Permian sequences. The mid-Permian coals are associated with abundant Vertebraria roots and Glossopteris leaves, thought...
Series: GSA Memoirs
Published: 01 January 1992
DOI: 10.1130/MEM170-p285
..., Gangamopteris leaves, and Vertebraria -type axes. The plants are preserved as impressions in fine-grained shale within the Polarstar Formation. Based on comparisons with other Antarctic and Gondwana floras, a Middle to Late Permian age is suggested. ...
Journal Article
Journal: PALAIOS
Published: 01 July 2013
PALAIOS (2013) 28 (7): 415–417.
... . Neish P.G. Drinnan A.N. Cantrill D.J. 1993 , Structure and ontogeny of Vertebraria from silicified Permian sediments in East Antarctica : Review of Palaeobotany and Palynology , v. 79...
FIGURES
Journal Article
Journal: PALAIOS
Published: 01 July 2010
PALAIOS (2010) 25 (7): 423–425.
...Figure 1. Glossopterid trees from the Late Permian of Antarctica. A) Compressions of Glossopteris leaves. B) Weathered surface of a permineralized trunk showing clusters of young shoots sprouting from the side of the stem (arrows). C) Cross section of two roots ( Vertebraria ) showing growth...
FIGURES
Image
Figure 7. Fossil plants from Portal Mountain, Antarctica: (A)  Gangamopteri...
Published: 01 November 2006
) Vertebraria australis (F37114) from 40 m; (F) Lepidophyllum sp. indet. (F37115) from 40 m; (G) Squamella australis (F37116) from 88 m; (H) Plumsteadia sp. indet. (F37117) from 39 m; (I) Dictyopteridium walkomii (F37118) from 88 m; (J) Eretmonia sp. indet. (F37119) from 88 m. Specimen numbers
Journal Article
Published: 01 December 2008
South African Journal of Geology (2008) 111 (4): 429–458.
... , Glossopteris retifera , G. damudica , G. browniana , G. stenoneura , and Angiopteridium (a taeniopteroid leaf form). Seward (1907) recorded Phyllotheca zeilleri , G. browniana , G. indica , G. retifera and Vertebraria from several poorly defined localities in the region. Visser (1957a ; b...
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Journal Article
Published: 01 September 2017
South African Journal of Geology (2017) 120 (3): 433–446.
...Figure 11. An example of Vertebraria, i.e. a root structure of a glossopterid tree, from the top of Fan 5, west of Skoorsteenberg. ...
FIGURES | View All (18)
Image
Permian plant fossils from the Tabbowa Basin. (a, b)  Sphenophyllum churuli...
Published: 13 December 2016
.2a); and (i, l) venation CNM SA.2b and SA.5a, respectively. (f) Vertebraria australis (McCoy, 1847 ) emend Schopf, 1982 , segmented glossopterid root (CNM SA.3b). (h) Samaropsis sp., winged seed (CNM SA.4a). (m) Paracalamites australis Rigby, 1966 , ribbed axes (CNM SA.7b). Scale bars: (a–f
Journal Article
Journal: GSA Bulletin
Published: 14 November 2019
GSA Bulletin (2020) 132 (7-8): 1489–1513.
... scale leaf or microsporophyll, 1000.35 m. (G) Samaropsis sp., a possible glossopterid seed, 1039.65 m. (H) Glossopteris chevronata , 1046.37 m. (I) Lateral compression of a slender Vertebraria australis (segmented root with small subsidiary rootlets), 810.28 m. (J) Lateral compression of a broad...
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Journal Article
Published: 23 October 2020
Journal of the Geological Society (2021) 178 (1): jgs2020-062.
... remain poorly constrained. A preliminary age assessment of a microflora from the northern Alamein Range (Norris pers. comm. in Sturm and Carryer 1970 , p. 432; see Fig. 1 ) has been taken to indicate a probable Late Triassic age for part of the Takrouna Formation. Multiple reports of Vertebraria...
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Journal Article
Journal: GSA Bulletin
Published: 01 May 2014
GSA Bulletin (2014) 126 (5-6): 665–679.
...Figure 4. Macrofloral remains. (A) Two, wide-diameter, overlapping Vertebraria rooting structures that crosscut the bedding plane at a shallow angle. Woody roots are admixed with dispersed assemblage of degraded Glossopteris leaves and other unidentifiable aerial plant debris at ∼–25–30 cm...
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Journal Article
Published: 28 April 2014
Journal of the Geological Society (2014) 171 (4): 493–507.
... and alternate when multiseriate). Vertebraria axes in the Permian of Brazil, Skaar Ridge in Antarctica, and Prince Charles Mountains in Antarctica have an Australoxylon wood type ( Mussa 1978 ; Neish et al . 1993 ; Decombeix et al . 2009 ). Glossopteris skaarensis , one of three known taxa that has...
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Journal Article
Published: 01 July 2005
Journal of Sedimentary Research (2005) 75 (4): 679–695.
... et al. 2005 ) and the last appearance of Glossopteris, Vertebraria , and coal as much as 12 m below the contact between Weller Coal Measures and the overlying Feather Conglomerate ( Retallack and Krull 1999 ). The earliest Triassic part of the Weller Coal Measures is not preserved at some localities...
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Journal Article
Journal: AAPG Bulletin
Published: 01 October 1975
AAPG Bulletin (1975) 59 (10): 2046–2050.
... stratigraphy of the northern Assam Valley may be compared better with the northerly sedimentary rocks of the eastern Indian shield. A succession similar to the Barakar Formation with vertebraria and coal streaks, directly overlapping the gneisses, is known in the northwest Garo Hills (25°44′;89°54′; Fox...
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