Herbst, Rafael Studies on Psaroniaceae. I. the family Psaroniaceae (Marattiales) and a redescription of Tietea singularis Solms-Laubach, from the Permian of Brazil - Mendoza s.e. 1986 - pp. 163-176 Subjects--Topical Terms: PALEOBOTANICAPERMICO Subjects--Geographic Terms: BRASIL Universal Decimal Class. No.: R/061.3:56(82)/C74/4|34