Organic geochemical evidence for series of C25-C28 sulphur containing lipids comprising regular and irregular isoprenoid and unusual linearly extended phytane skeletons

Abstract

A series of alkylthiophenes (C₂₅ — C₂₈), consisting of regular and irregular isoprenoid and unusual linearly extended phytane carbon skeletons, some of which are presently unknown in living organisms, have been identified in a bituminous marl.