Reconstruction and Phylogenetic Significance of a New Equisetum Linnaeus Species from the Lower Jurassic of Cerro Bayo (Chubut Province, Argentina)

@inproceedings{Elgorriaga2015ReconstructionAP,
  title={Reconstruction and Phylogenetic Significance of a New Equisetum Linnaeus Species from the Lower Jurassic of Cerro Bayo (Chubut Province, Argentina)},
  author={Andr{\'e}s Elgorriaga and Ignacio H Escapa and Benjamin Bomfleur and Rub{\'e}n C{\'u}neo and Eduardo G. Ottone},
  year={2015}
}
Abstract. We describe Equisetum dimorphum sp. nov. from the Lower Jurassic of Chubut Province, Patagonia, Argentina. This new species Is based on fertile and vegetative remains preserved as Impressions of stems, leaves, strobili, transversal sections of the stems showing their anatomy, and terminal pagoda-like structures. The fine-grained sedimentary matrix also preserved detailed Impressions of epidermal features. The morphological characters allow a whole-plant reconstruction and assignment… Expand
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References

SHOWING 1-10 OF 87 REFERENCES
Equisetum thermale sp. nov. (Equisetales) from the Jurassic San Agustín hot spring deposit, Patagonia: anatomy, paleoecology, and inferred paleoecophysiology.
TLDR
E. thermale supports the hypothesis of a Mesozoic origin for the crown group of Equisetum, because it is preserved in situ with intact anatomy and provides clear paleoecological, biological, plus inferred paleoECophysiological evidence of adaptations known in extant species. Expand
Phylogenetic diversification of Equisetum (Equisetales) as inferred from Lower Cretaceous species of British Columbia, Canada.
Three types of anatomically preserved vegetative shoots with features that characterize crown group Equisetum have been discovered in Lower Cretaceous deposits (≈136 Ma) of British Columbia, Canada,Expand
A new genus of the Cupressaceae (sensu lato) from the Jurassic of Patagonia: Implications for conifer megasporangiate cone homologies
TLDR
This conifer possesses a combination of characters indicating placement within the basal Cupressaceae ( i.e. the former “Taxodiaceae”) and is supported by a phylogenetic analysis that places the Argentinean fossil close to the extant genera Athrotaxis and Cunninghamia and the fossil genera Elatides and Sewardiodendron. Expand
The Equisetalean Genus Cruciaetheca nov. from the Lower Permian of Patagonia, Argentina
TLDR
The use of the genus Phyllotheca is reevaluate in light of finding Phylletheca foliar whorls associated with completely distinct reproductive characters, as well as the significance of its cruciate sporangiophores and other characters. Expand
Phylogenetic Relationships and Evolution of Extant Horsetails, Equisetum, Based on Chloroplast DNA Sequence Data (rbcL and trnL‐F)
TLDR
The Equisetum crown group appears to have diversified in the early Cenozoic, whereas theEquisetaceae total group is estimated to have a Paleozoic origin, in remarkable agreement with current interpretations of the fossil record. Expand
A new marattiaceous fern from the Lower Jurassic of Patagonia (Argentina): the renaissance of Marattiopsis
TLDR
It appears that essentially modern marattioid ferns, including Marattiopsis, which are commonly considered to be typical elements of tropical areas of the northern hemisphere during the Mesozoic, may have left an important but largely ignored fossil record in subtropical Gondwana. Expand
Phylogeny of Horsetails (Equisetum) based on the Chloroplast rps4 Gene and Adjacent Noncoding Sequences
TLDR
On the basis of the present phylogeny, bisexuality would not be the ancestral state in the Equisetum genus, but characters shared among species of the subgenus Equisettum, such as superficial stomata and protruding antheridia, could be ancestral in the genus. Expand
A new equisetalean plant from the early Permian of Patagonia, Argentina
The sphenophyte Peltotheca furcata, nov. gen. et sp., is described based on vegetative and reproductive organs. Unbranched vegetative axes bear foliar whorls of Barakaria-type leaves, whileExpand
A reappraisal of Neocalamites and Schizoneura (fossil Equisetales) based on material from the Triassic of East Antarctica
Sphenophytes are a common floral element in the Triassic of Gondwana. Most sphenophyte compression fossils have been conventionally assigned to a few, presumably very widespread species ofExpand
Morphology of Equisetum laterale Phillips, 1829, and E. bryanii sp. nov. from the Mesozoic of South-Eastern Queensland
An equisetaceous plant with wheel-like nodal diaphragms, previously described as Equisetum rotiferum Tenison-Woods, 1883, is common in the Marburg Sandstone and Walloon Coal Measures of south-easternExpand
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