Orientation pattern of striations Schizaeoisporites Potonie 1951

Abstract

The objective of this paper is to elucidate characteristic patterns in the emergence and orientation of striations in the genus Schizaeoisporites Potonie 1951 in order to understand the specific characteristic of this genus. This lead to emend the generic diagnosis of the genus to include spores having oblique emergence and orientation of striations. It also necessitated re-description of S. grandiformis Ramanujam 1972 and proposal of two new species- S. proximobliques and S. obliques.