*Lomagundi-Jatuli event (2,300–2,080 Ma) Paleoproterozoic - Positive excursion
*Shunga-Francevillian event (2,080 Ma) Paleoproterozoic - Negative excursion
*Shuram-Wonoka excursion (570–551 Ma) Neoproterozoic - Negative excursion
*Steptoean positive carbon isotope excursion (494.6-492 Ma) Paleozoic - Positive excursion
*Ireviken event (433.4 Ma) Paleozoic - Positive excursion
*Mulde event (427 Ma) Paleozoic - Positive excursion
*Lau event (424 Ma) Paleozoic - Positive excursion
*Cenomanian-Turonian boundary event (93.9 Ma) Mesozoic - Positive excursion
*Paleocene–Eocene Thermal Maximum (55.5 Ma) Cenozoic - Negative excursion