Hoazinavis
Hoazinavis is an extinct genus of bird related to the hoatzin from Late Oligocene and Early Miocene deposits of Brazil. It was collected in 2008 from the Tremembé Formation of São Paulo, Brazil. It was first named by Gerald Mayr, Herculano [Marcos Ferraz de Alvarenga|Herculano Alvarenga] and Cécile Mourer-Chauviré in 2011 and the type species is Hoazinavis lacustris.