Data from: Ontogenetic variability in old and new collections of Dicranophyllum gallicum Grand’Eury from the late Palaeozoic of Europe
Pas, Jorik Van der, Naturalis Biodiversity Center
Poppe, Linda, Naturalis Biodiversity Center
Van Waveren, Isabel M., Naturalis Biodiversity Center
Published Sep 29, 2018 on Dryad.
Cite this dataset
Pas, Jorik Van der; Poppe, Linda; Van Waveren, Isabel M. (2018). Data from: Ontogenetic variability in old and new collections of Dicranophyllum gallicum Grand’Eury from the late Palaeozoic of Europe [Dataset]. Dryad. https://doi.org/10.5061/dryad.pp26q
Dicranophyllum gallicum Grand’Eury is described by means of a morphometric analysis of eighty two samples from various old and new localities in western and central Europe. Stem, leaf cushions, leaf scars, leaves, axillary structures and potential seeds are described in detail, and discussed in comparison to earlier studies. The encountered variability in size and structure is shown to be higher than what was described earlier. The organisation of the leaf cushion and scar density vary gradually with the stem width, while stratigraphic position and ecology do not relate to it. It is concluded that the described variability represents an ontogenetic feature rather than a phylogenetic or ecologic one. The juvenile plants are characterised by small stems, a high leaf scar density and elongated leaf cushions with a dominant apical field, while mature specimens are characterized by a wide stem, a relatively low leaf scar density and relatively wide leaf cushions with a pronounced basal field. Axillary shoots and potential seeds of D. gallicum are described and illustrated in detail for the first time. A reconstruction based on the studied material is presented.
Supplementary file 1- Considered samples
List of samples holding the Dicranophyllum gallicum specimen considered. The samples are listed by collection, by sample number and by locality.
Supplementary file 2 - Stem measurements
Measurements on Dicranophyllum gallicum stem: stem width, leaf scar length and width, leaf cushion length and width and apical and basal leaf cushion length in mm and leaf scar density in number per cm2.
Supplementary file 3 - Leaf measurements
Measurements of Dicranophyllum gallicum leaves: length second segment, width first, second and third segment in mm.