Difference in microspore composition of some samples from a bore at Comaum, South Australia

Abstract

The microspore content of samples from a bore at Comaum, S.A., has been determined. Evidence is brought forward which suggests that the passage from Tertiary to Mesozoic strata occurred between 620-ft and 650-ft levels. Several new sporomorphs have been described; their affinities with living and fossil types have been considered.