Nomenclatural act
Plant Fossil Names Registry Number: PFN001968
Act LSID: urn:lsid:plantfossilnames.org:act:1968
Quadrispermum parvum sp. nov.
Friis, E. M., Pedersen, K. R. & Crane, P. R. (2013): New diversity among chlamydospermous seeds from the Early Cretaceous of Portugal and North America. – International Journal of Plant Sciences 174(3): 530–558.