Complex sentence: The principal organic component of kukersite is telalginite, derived from the fossil green alga, "Gloeocapsomorpha prisca", which has affinities with the modern cyanobacterium, "Entophysalis major", an extant species that forms algal mats in inter-tidal to very shallow subtidal waters.
Split into simpler sentences: The principal organic component of kukersite is telalginite, derived from the fossil green alga "Gloeocapsomorpha prisca". This species has affinities with the extant modern cyanobacterium, "Entophysalis major", which forms algal mats in inter-tidal to very shallow subtidal waters.