Results 21 to 30 of about 189 (105)

PLANT FOSSIL REMAINS FROM THE RHAETIAN OF SHEMSHAK FORMATION,NARGES-CHAL AREA, ALBORZ, NE IRAN

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2006
The Shemshak Formation is well-exposed in Narges-Chal area, East Alborz. It contains abundant well-preserved plant megafossils belonging to twenty two taxa of various orders viz., Equisetales, Marattiales, Filicales, Pteridospermales, Bennettitales ...
FATEMEH VAEZ-JAVADI
doaj   +1 more source

Exploring the phylogeny of the marattialean ferns

open access: yesCladistics, Volume 36, Issue 6, Page 569-593, December 2020., 2020
Abstract The eusporangiate marattialean ferns represent an ancient radiation with a rich fossil record but limited modern diversity in the tropics. The long evolutionary history without close extant relatives has confounded studies of the phylogenetic origin, rooting and timing of marattialean ferns.
Samuli Lehtonen   +5 more
wiley   +1 more source

Plastid phylogenomic analysis of green plants: A billion years of evolutionary history

open access: yesAmerican Journal of Botany, Volume 105, Issue 3, Page 291-301, March 2018., 2018
Premise of the Study For the past one billion years, green plants (Viridiplantae) have dominated global ecosystems, yet many key branches in their evolutionary history remain poorly resolved. Using the largest analysis of Viridiplantae based on plastid genome sequences to date, we examined the phylogeny and implications for morphological evolution at ...
Matthew A. Gitzendanner   +4 more
wiley   +1 more source

Peculiar Evolutionary History of miR390‐Guided TAS3‐Like Genes in Land Plants

open access: yesThe Scientific World Journal, Volume 2013, Issue 1, 2013., 2013
PCR‐based approach was used as a phylogenetic profiling tool to probe genomic DNA samples from representatives of evolutionary distant moss taxa, namely, classes Bryopsida, Tetraphidopsida, Polytrichopsida, Andreaeopsida, and Sphagnopsida. We found relatives of all Physcomitrella patens miR390 and TAS3‐like loci in these plant taxa excluding ...
Maria S. Krasnikova   +7 more
wiley   +1 more source

[A new species of fern, genus Danaea (Marattiales: Marattiaceae) endemic to Costa Rica].

open access: yesRevista de biologia tropical, 2006
Se describe e ilustra una especie nueva endémica de helecho de Costa Rica, Danaea tuomistoana A. Rojas (Marattiaceae), caracterizada porque las pinnas son inci- sas 2/5-1/2 entre la costa y el margen, y son cuneadas en la base. Se amplia el ámbito geográfico de D. erecta H. Tuomisto & R.C. Moran a Puntarenas, Costa Rica.
openaire   +6 more sources

Vegetation Turnovers Reduced Water Availability During the Last Icehouse

open access: yesGlobal Ecology and Biogeography, Volume 34, Issue 9, September 2025.
ABSTRACT Aim Plants are hypothesised to have changed in function, biogeography and environmental impact throughout the Phanerozoic. The fossil record preserves large‐scale shifts in water use traits with evolution. We test how time‐appropriate plants modified their environment differently based on their water use traits and where they survived during ...
William J. Matthaeus   +6 more
wiley   +1 more source

The evolutionary history of Coleoptera (Insecta) in the late Palaeozoic and the Mesozoic

open access: yesSystematic Entomology, Volume 49, Issue 3, Page 355-388, July 2024.
Structural transformations of the elytra and abdomen played a major role in the early beetle evolution in the Permian. Polyphaga appear late in the fossil record, with only a few fossils of Elateriformia in the Late Triassic. Several factors were involved in the enormous diversification of beetles in the Cretaceous but evolutionary interactions with ...
Rolf G. Beutel   +6 more
wiley   +1 more source

Parallel evolution of angiosperm‐like venation in Peltaspermales: a reinvestigation of Furcula

open access: yesNew Phytologist, Volume 242, Issue 6, Page 2845-2856, June 2024.
Summary Leaf venation is a pivotal trait in the success of vascular plants. Whereas gymnosperms have single or sparsely branched parallel veins, angiosperms developed a hierarchical structure of veins that form a complex reticulum. Its physiological consequences are considered to have enabled angiosperms to dominate terrestrial ecosystems in the Late ...
Mario Coiro   +5 more
wiley   +1 more source

The Anatomically Preserved Tripinnate Frond Rothwellopteris pecopteroides gen. et sp. nov. from the Latest Permian of South China: Timing the Stem to Crown Group Transition in Marattiales [PDF]

open access: yesInternational Journal of Plant Sciences, 2019
Premise of research. Fern fronds are common in Late Paleozoic and Mesozoic strata. Large tri- or multipinnate fronds are mainly preserved as impression/compressions, while anatomically preserved sp...
Xiao-Yuan He   +3 more
openaire   +1 more source

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