SAWIN, Robert S.; WEST, Ronald R. Paleoecology of the Permian (Wolfcampian) Phylloid Alga Calcipatera from an In Situ Occurrence in Kansas, U.S.A. Current Research in Earth Sciences, [S. l.], n. 251, p. 1–14, 2005. DOI: 10.17161/cres.v0i251.11835. Disponível em: https://journals.ku.edu/cres/article/view/11835.. Acesso em: 5 may. 2024.