Table 2.

Major palaeoclimatic and biotic changes across Neoproterozoic–Cambrian Transition in the Lesser Himalaya, India (Tewari 2001a)

Age/StagePeriodClimateδ13C valuesFossils
CambrianTalianWarmChanging (−ve to +ve)Brachiopods, trilobites, trace fossils, small shelly fossils, sponge spicules, stromatolite
EdiacaranKrolianWarmPositiveEdiacaran, vendotaenilids, algae and stromatolites
VarangianBlainianGlacialNegative (lighter)Acritarchs, microbialites
Riphean–Early VendianDeobanianWarmPositive (heavier)Predominantly stromatolites, cyanobacteria, organic walled microfossils, sponge spicules, epiphyton algae