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Chemometric-based, 3D chemical-architectural model of Odontopteris cantabrica Wagner (Medullosales, Pennsylvanian, Canada): Implications for natural classification and taxonomy
(Elsevier Science, 2019-04)
The largest known (365 mm-long) specimen of Odontopteris cantabrica Wagner from the Late Pennsylvanian Sydney Coalfield in Canada was re-examined as part of the on-going research project “Chemistry and Architecture of ...
Density and biomechanical properties of fossil fronds. A case study of Neuropteris ovata (seed fern, Late Pennsylvanian, Canada)
(Elsevier Science, 2018-10)
A theoretical biomechanical model is proposed for the largest known 650 mm-long frond segment Neuropteris ovata var. simonii (Medullosales, Pennsylvanian, Sydney Coalfield, Canada). The study procedure includes, amongst ...
Chemometric study of structural groups in medullosalean foliage (Carboniferous, fossil Lagerstätte, Canada): Chemotaxonomic implications
(Elsevier Science, 2015-01)
A larger chemometric study (data derived from Fourier transform infrared spectroscopy-FTIR interpreted by principal component analysis) is undertaken involving species (numbers bracketed) from the four medullosalean families ...
3D chemometric model and frond architecture of Alethopteris ambigua (Medullosales): Implications for reconstruction and taxonomy
(E Schweizerbartsche Verlags, 2017-11)
The postulated relationship between chemistry and frond architecture is further tested based on a 450 mm frond segment
Alethopteris ambigua Lesquereux pars from the Sydney Coalfield (Canada), this being the largest specimen ...
Eoguptioxylon antiqua gen. et sp. nov. (Pteridospermae) del Pérmico Superior (Formación La Antigua), provincia de La Rioja, ArgentinaEoguptioxylon antiqua nov. gen. et sp. (Pteridospermae) from the Upper Permian (La Antigua Formation), La Rioja province, Argentina
(Asociacion Paleontologica Argentina, 2007-03)
Se describen fragmentos de maderas pteridospérmicas poliestélicas provenientes de la Formación La Antigua (Pérmico Superior) aflorante en la provincia de La Rioja. Se trata de un nuevo taxón con estelas dispuestas ...
El origen y diversificación del crecimiento cambial atípico en plantas fósiles: procesos del desarrollo involucradosOrigin and diversification of atypical cambial growth in fossil plants: developmental processes involved
(Sociedad Argentina de Botánica, 2012-06)
En el registro fósil encontramos una serie de morfologías, cuyo origen sólo puede ser inferido a partir de los estudios ontogenéticos actualistas. De este modo, la comprensión de los procesos del desarrollo y el patrón ...
3D chemical map and a theoretical life model for Neuropteris ovata var. simonii (index fossil, Asturian, Late Pennsylvanian, Canada)
(Elsevier Science, 2016-01)
The largest known 65-cm frond segment of Neuropteris ovata var. simonii (Order: Medullosales) from the Late Pennsylvanian of Sydney Coalfield, Canada, is preserved as compression and naturally macerated cuticle and comprises ...