Early Devonian (Late Emsian) shark fin remains (Chondrichthyes) from the Paraná Basin, southern Brazil

by MARTHA RICHTER, ELVIO P. BOSETTI, RODRIGO S. HORODYSKI

Shark teeth from Pirabas Formation (Lower Miocene), northeastern Amazonia, Brazil

by Sue Anne Regina Ferreira Costa, Martha Richter, Peter Mann de Toledo, Heloísa Maria Moraes-Santos
Published 2009-12-01

Captorhinid reptiles from the lower Permian Pedra de Fogo Formation, Piauí, Brazil: the earliest herbivorous tetrapods in Gondwana

by Juan C. Cisneros, Kenneth Angielczyk, Christian F. Kammerer, Roger M.H. Smith, Jörg Fröbisch, Claudia A. Marsicano, Martha Richter
Published 2020-03-01