Cycadolepis ferrugineus McLoughlin, C.Pott et Sobbe

Plant Fossil Names Registry Number: PFN000250

Act LSID: urn:lsid:plantfossilnames.org:act:250

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: 84

Illustrations or figures: fig. 3b–d, f–h

Types

Original diagnosis/description

no diagnosis

Description: The impressions of several lanceolate bracts are available. The bracts are 36–60mm long with a central lamina 4.0–8.5 mm wide, the widest point being at or just above the base. A fringe of densely spaced, 6–9 mm long, <1.2 mm wide, linear to falcate, apically inclined spines or hairs line the lamina margins of most specimens (Fig. 3d, f–h). The hairs are acutely (5°–40°) inserted on the lamina margin and are either straight or slightly falcate. Each hair appears to have a fine median groove or vein. A few bracts are markedly more slender and bear fewer marginal hairs (Fig. 3b, c) and may derive from the inner whorl of a perianth. The bract base is truncate and the apex acutely pointed. The lamina bears weak longitudinal striae and is either flat or gently concave about a longitudinal axis.

Etymology

Latin ferrugineus—the colour of iron rust.

Stratigraphy

Jurassic
undifferentiated Marburg Subgroup; Pliensbachian–Aalenian

Locality

Australia
From outcrop 300 m east of Durikai Siding, 35 km west of Warwick, southern Queensland