Onostrobus Rothwell et Stockey

Plant Fossil Names Registry Number: PFN003375

Act LSID: urn:lsid:plantfossilnames.org:act:3375

Authors: G. W. Rothwell & R. A. Stockey

Rank: genus

Reference: Rothwell, G. W. & Stockey, R. A. (2024): Pinaceous evolution illuminated by additional diversity of Early Cretaceous seed cones. – Fossil Imprint 80(1): 1–8.

Page of description: 3

Type

Original diagnosis/description

Pinaceous conifers with cylindrical seed cones having small parenchymatous bracts and larger ovuliferous scales that remain attached to cone axis at seed dispersal. Ovuliferous scale and bract separating from each other near cone axis, beginning at margins. Bract and ovuliferous scale vasculature originating from axis stele separately, ovuliferous scale trace diverging as three bundles forming an inverted U-shaped configuration. Two inverted winged seeds adaxially attached near base of ovuliferous scale; interseminal ridge absent. Wing attached toward base of seed body and laterally.

Etymology

Ono + strobus (= cone), is proposed to reflect the collecting locality of the holotype specimen.