Extinct taxa of exotestal seeds close to Austrobaileyales and Nymphaeales from the Early Cretaceous of Portugal Else Marie Friis , Peter R. Crane , Kaj Raunsgaard Pedersen 2018 | volume 74 | issue 1-2 | pages 135–158 PDF
Rightcania and Kvacekispermum: Early Cretaceous seeds from eastern North America and Portugal provide further evidence of the early chloranthoid diversification Else Marie Friis , Peter R. Crane , Kaj Raunsgaard Pedersen 2018 | volume 74 | issue 1-2 | pages 65–76 PDF
