Nomenclatural act

Plant Fossil Names Registry Number: PFN000249
Act LSID: urn:lsid:plantfossilnames.org:act:249
Williamsonia gracilis sp. nov.
McLoughlin, S., Pott, C. & Sobbe, I. H. (2018): The diversity of Australian Mesozoic bennettitopsid reproductive organs. – Palaeobiodiversity and Palaeoenvironments 98(1): 71–95.