Williamsonia rugosa McLoughlin, C.Pott et Sobbe

Plant Fossil Names Registry Number: PFN000248

Act LSID: urn:lsid:plantfossilnames.org:act:248

Authors: S. McLoughlin, C. Pott & I. H. Sobbe

Rank: species

Reference: McLoughlin, S., Pott, C. & Sobbe, I. H. (2018): The diversity of Australian Mesozoic bennettitopsid reproductive organs. – Palaeobiodiversity and Palaeoenvironments 98(1): 71–95.

Page of description: 81

Illustrations or figures: fig. 6a–c


Holotype UQF10489, University of Queensland, Australia
Figures: fig. 6a–c

Original diagnosis/description

Small Williamsonia incorporating several helices of longitudinally arched, slender, linear bracts with coarse transverse wrinkles, attached by their broad base and tapering consistently to acute apex.


Latin: rugosus—wrinkled; after the coarsely wrinkled texture of the abaxial surface of the perianth bracts.


Jurassic, Middle Jurassic
undifferentiated Injune Creek Group; Aalenian–Bajocian


Bymount Station, Eumamurrin near Injune, southern Queensland

Plant fossil remain

macro- and meso-fossils-embryophytes except wood


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