Friis, E. M.; Crane, P. R.; Pedersen, K. R. (2018). Rightcania and Kvacekispermum: Early Cretaceous seeds from eastern North America and Portugal provide further evidence of the early chloranthoid diversification. Fossil Imprint. 74(1-2): 65-76.
Rightcania and Kvacekispermum: Early Cretaceous seeds from eastern North America and Portugal provide further evidence of the early chloranthoid diversification