Peijnenburg KTCA, Janssen AW, Wall-Palmer D, Goetze E, Maas AE, Todd JA, Marlétaz F.

Proc Natl Acad Sci U S A. 2020 Sep 24:201920918. doi:10.1073/pnas.1920918117

The origin and diversification of pteropods precede past perturbations in the Earth's carbon cycle.

Pteropods survived the Paleocene–Eocene Thermal Maximum (PETM).