Authors: ERWIN DM PFEFFERKORN HW ALLEMAN V

Citation: Dm. Erwin et al., EARLY SEED PLANTS IN THE SOUTHERN-HEMISPHERE .1. ASSOCIATED OVULATE AND MICROSPORANGIATE ORGANS FROM THE CARBONIFEROUS OF PERU, Review of palaeobotany and palynology, 80(1-2), 1994, pp. 19-38

Authors: CEVALLOSFERRIZ SRS ERWIN DM STOCKEY RA

Citation: Srs. Cevallosferriz et al., FURTHER OBSERVATIONS ON PALEOROSA-SIMILKAMEENENSIS (ROSACEAE) FROM THE MIDDLE EOCENE PRINCETON CHERT OF BRITISH-COLUMBIA, CANADA, Review of palaeobotany and palynology, 78(3-4), 1993, pp. 277-291