Cycadofilicales (Pteridospermales)

By : Teena Agrawal , Prerana Badoni , Suman Kacholia , Manisha Chauhan

Page No: 197-205

Abstract
The discovery of this group of gymnosperms from the Palaeozoic era is one of the notable achievements of the palaeobotanist and it was of immense value to the palaeobotany & in phylogeny. It includes fern like plants which were dominant in the Devonian period. They extend into the beginning of the Mesozoic era, later on, there was a mass extinction of the pteridospermales, due to the misconception, that they were initially considered ferns and fern-like plants. Williamson (1897) first considered these plants as an intermediate of the ferns and cycads due to the morphological and anatomical similarity of the organs. H. Potonie (1899) was the first to give their names as the Cycadofilicales. Oliver and Scott ( 1904) named this group as pteridospermales due to the similarity between the ferns and spermatophytes. In this review article features of the order pteridospermales and their phylogeny have been discussed.

Authors:
Teena Agrawal : Department of Botany, Career Point University, Kota, Rajasthan, India.
Prerana Badoni : Forest Pathology Division, Forest Research Institute, Dehradun, Uttarakhand, India.
Suman Kacholia : Professor, Govt. P.G. College, Chimanpura, Jaipur, Rajasthan, India.
Manisha Chauhan : Professor, Department of College Education, Jodhpur, Rajasthan, India.
 

DOI: https://doi.org/10.32381/JPSR.2024.40.01.21