A lyginopterid pollen organ from the upper Permian of the Dead Sea region
@article{Zavialova2020ALP, title={A lyginopterid pollen organ from the upper Permian of the Dead Sea region}, author={Natalia Zavialova and Patrick Blomenkemper and Hans Kerp and Abdalla Abu Hamad and Benjamin Bomfleur}, journal={Grana}, year={2020}, volume={60}, pages={81 - 96} }
Abstract Here we report a pollen organ from the upper Permian of the Dead Sea region with in situ pollen showing a wall structure typical for lyginopterid seed ferns. The single specimen resembles the dispersed seed-fern pollen organs Dictyothalamus and Melissiotheca in being composed of numerous densely positioned, radiating pollen sacs that together form a characteristic honeycomb-like surface pattern. The small, rounded to oval, non-saccate cryptaperturate in situ pollen grains have a…
5 Citations
Bennettitalean Leaves From the Permian of Equatorial Pangea—The Early Radiation of an Iconic Mesozoic Gymnosperm Group
- Environmental ScienceFrontiers in Earth Science
- 2021
Bennettitaleans are an extinct group of gymnosperms that are among the most iconic plants of Earth’s vegetation during the Mesozoic Era. The sudden appearance and rise to dominance of the…
ATLAS OF SELECTED KINNEY QUARRY PLANT FOSSILS, LATE PENNSYLVANIAN, CENTRAL NEW MEXICO
- Environmental Science, Geography
- 2021
During the Late Pennsylvanian, seasonality and rainfall increased in western Pangea, which led to the expansion of “mixed” floras composed of a combination of wetland and drought-tolerant plants. One…
Dominance-diversity architecture of a mixed hygromorphic-to-xeromorphic flora from a botanically rich locality in western equatorial Pangea (lower Permian Emily Irish site, Texas, USA
- Environmental Science, Geography
- 2020
In search of the correspondence between in situ and dispersed pollen
- Review of Palaeobotany and Palynology
- 2022
A taxonomic revision of the late Paleozoic lyginopterid, Sphenopteridium germanicum, and description of its globose-stem growth habit
- Review of Palaeobotany and Palynology
- 2021
References
SHOWING 1-10 OF 48 REFERENCES
Reconstruction of a bennettitalean flower from the Carnian (Upper Triassic) of Lunz, Lower Austria
- Environmental Science
- 2010
Permineralized Cardiocarpalean Ovules in Wetland Vegetation from Early Permian Volcaniclastic Sediments of China
- Environmental Science
- 2001
In this paper we report the first occurrence of permineralized plant fossils in volcaniclastic lithologies from China and in doing so describe a new species of cardiocarpalean ovule permineralized…
Ultrastructure of exine of gymnospermous pollen grains from Jurassic and basal Cretaceous deposits in Northwest Europe and implications for botanical relationships
- Environmental Science, Geography
- 1997
POLLEN MORPHOLOGY AND ULTRASTRUCTURE OF THE BENNETTITALES: IN SITU POLLEN OF CYCADEOIDEA'
- Geology
- 1995
Pollen morphology and ultrastructure are compared with those of the bennettitalean genus Leguminanthus and the dispersed genus Monosulcites, and the fine structure of Cycadeoidea pollen is compared to that of the gymnosperm groups with which the Bennettitales are regarded to be most closely related.
Westersheimia pramelreuthensis from the Carnian (Upper Triassic) of Lunz, Austria: More Evidence for a Unitegmic Seed Coat in Early Bennettitales
- Environmental ScienceInternational Journal of Plant Sciences
- 2016
Studies of b Bennettitalean reproductive organs from Scania (Sweden), Jameson Land (Greenland), and Yorkshire (United Kingdom) facilitated reevaluation of the disputed architecture of bennettitalan seeds, and the findings clearly indicate that early bennett italean seeds can be interpreted as unitegmic.
A Late Permian flora with Dicroidium from the Dead Sea region, Jordan
- Geography, Environmental Science
- 2008
The Pollen Ultrastructure of Williamsoniella coronata Thomas (Bennettitales) from the Bajocian of Yorkshire
- Environmental ScienceInternational Journal of Plant Sciences
- 2009
The exine ultrastructure of Williamsoniella coronata Thomas from the Bajocian of Yorkshire (United Kingdom) was investigated with light, scanning electron, and transmission electron microscopy, supporting the bennettitalean affinity of these dispersed pollen grains.
A Revision of the Pennsylvanian‐Aged Eremopteris‐Bearing Seed Plant
- Environmental ScienceInternational Journal of Plant Sciences
- 2009
Inclusion of the reconstruction of E. artemisiaefolia in a cladistic analysis of lignophytes suggests that it represents a distinct clade within a paraphyletic complex of basal pteridosperms and that it diverges after hydrasperman and medullosalean taxa and before the Callistophytales.
A new conifer from the Upper Triassic of southern Poland linking the advanced voltzialean type of ovuliferous scale with Brachyphyllum-Pagiophyllum-like leaves
- Environmental Science, Geography
- 2017
Anatomically Preserved Pteridosperm Stems and Rachises from Permian Floras of China
- Environmental ScienceInternational Journal of Plant Sciences
- 2009
Extending the geographical and stratigraphical ranges of these pteridosperm taxa means that each should now be considered as potentially important to seed plant evolution and phylogeny during the Permian as well as the Carboniferous.