BERGGREN, W. A. Part A, Introduction, References and Index. Treatise on Invertebrate Paleontology, [S. l.], 1979. DOI: 10.17161/dt.v0i0.5533. Disponível em: https://journals.ku.edu/InvertebratePaleo/article/view/5533.. Acesso em: 2 may. 2024.