Functional groups of fossil marattialeans: chemotaxonomic implications for Pennsylvanian tree ferns and pteridophylls

Phytochemistry of the fossilized-cuticle frond Macroneuropteris macrophylla (Pennsylvanian seed fern, Canada)

“…These peaks likely represent the contribution of vitrinitic matter (i.e., non-cuticular organic matter), and are removed by Schulze's process. They have been used to distinguish compressions from cuticles in other plant groups, for example Pennsylvanian seed ferns and true ferns (Lyons et al, 1995;Zodrow and Mastalerz, 2002;Pšenička et al, 2005). We suggest that these chemical data, independently of Laveine's evidence that the frond dichotomy in M. macrophylla (Brongniart) implies a seed fern (1997, Fig.…”

A Revision of the Pennsylvanian‐AgedEremopteris‐Bearing Seed Plant

“…The analysis in rhis study was liinited to a single curicle and does not allow derailed comparison wirh previous studies looking at cuticle biochemistry. However, FTIR analysis has shown that a range of organic molecules are present in the cuticle, and the FTIR spectral data obrained are quire different from those obtained in <tther studies on fossil plant remains (Lyons et al 1994;Zodrow and Mastalerz 2002;Zodrow et al 2003;Psenicka et al 2005).…”

“…)rt for the first time cuticles of both the foliage and the ovules, and we show how this provides evidence about where the ovules were attached on the plant. In view of a number of recent studies on Carbonifert)us cuticle bitKhemistry (Lyons et al 1994;Zodrow and Mastalerz 2002;Zodrow et al 2003;Psenicka et a!. 2005), we have also investigated it for E. artemisiaefoUa by using infrared spectrometry.…”

Sterile Foliage of Fertile Sydneia Manleyi and Synangial Chemistry (Eusporangiate Fern, Late Asturian, Canada): A New Subfamily Sydneideae

“…Spectrometric resolution is 4 cm -1 wavenumber, and 256 scans were co-added to produce one spectrum. For further analytical details, the reader is referred to Pšenička et al (2005). Table 1 lists the assignments of IR bands (range of wavenumbers cm -1 in which the group and class of compounds absorb infrared radiation energy), and Table 2 defines the calculated ratios from the IR spectra ( Figure 5), which represent semi-quantitative values.…”

“…Lately, when cuticles of some fossil marattialean ferns became available, chemotaxonomic investigations were published (e.g. Zodrow and Mastalerz, 2001;Pšenička et al, 2005).…”