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New petrified calamitaleans from the Permian of the Parnaíba Basin, central-north Brazil, part III, with some concerns regarding anatomical features of Paleozoic petrified sphenophytes
(2021-10-01)
A new petrified calamitalean is described from the Permian Motuca Formation, Parnaíba Basin, central-north Brazil. In contrast to all other three-dimensionally preserved Brazilian species, it represents a semi-self-supporting ...
The root systems of permian arborescent sphenopsids: evidence from the northern and southern hemispheres
(E Schweizerbart'sche Verlagsbuchhandlung, 2013-06-01)
Anatomically preserved calamitalean trunks are described from the Permian fossil forests of Chemnitz, Germany, and Tocantins, central-north Brazil. Several trunk bases were found in situ, still rooting in their former ...
The root systems of Permian arborescent sphenopsids: Evidence from the Northern and Southern hemispheres
(2014-02-01)
Anatomically preserved calamitalean trunks are described from the Permian fossil forests of Chemnitz, Germany, and Tocantins, central-north Brazil. Several trunk bases were found in situ, still rooting in their former ...
The root systems of permian arborescent sphenopsids: evidence from the northern and southern hemispheres
(E Schweizerbart'sche Verlagsbuchhandlung, 2014)
New petrified calamitaleans from the Permian of the Parnaíba Basin, central-north Brazil, part II, and phytogeographic implications for late Paleozoic floras
(2017-02-01)
Continuing palaeofloristic studies in the Northern Tocantins Fossil Forest, we describe two new calamitalean species from the Permian of the Parnaíba Basin (central-north Brazil). The fossils comprise axes of various sizes, ...
The root systems of permian arborescent sphenopsids: evidence from the northern and southern hemispheres
(E Schweizerbart'sche Verlagsbuchhandlung, 2014)
New petrified calamitaleans from the Permian of the Parnaiba Basin, central-north Brazil. Part I
(Elsevier B.V., 2015-04-01)
New sphenophyte stems from the Permian of the Parnaiba Basin (central-north Brazil) are described in detail and assigned to Arthropitys, a genus that was recognised from the Euramerican and Cathaysian floristic provinces. ...