Petalophyllites G.L.Hoffman et Crand.-Stotl.

Plant Fossil Names Registry Number: PFN003196


Authors: G. L. Hoffman & B. J. Crandall-Stotler

Rank: genus

Reference: Hoffman, G. L. & Crandall-Stotler, B. J. (2023): Petalophyllites speirsiae gen. et sp. nov. (Marchantiophyta: Fossombroniales), a fossil liverwort gametophyte from the Paleocene of Alberta, Canada. – Botany 101(10): 462–470., link

Page of description: 464


Petalophyllites speirsiae G.L.Hoffman et Crand.-Stotl.

Original diagnosis/description

Gametophytes thallose, bilaterally symmetrical, unbranched or once furcate; midrib dorsally inconspicuous, flanked by two undissected wings bearing lamellae; lamellae oppositely arranged on dorsal surface of wings, extending from midrib to wing margin, with 12–16 pairs of lamellae per thallus; antheridia spheroidal, in clusters on dorsal surface of midrib area, sometimes associated with small scales.


The generic name refers to the family Petalophyllaceae.

Plant fossil remain

macro- and meso-fossils-embryophytes except wood

Names associated with genus

Petalophyllites speirsiae G.L.Hoffman et Crand.-Stotl. 2023


Oleksandra Chernomorets on 2024-03-06 15:40:17

Dear Doctor Hoffman,

You can add the stratigraphic and locality for the type species Petalophyllite speirsiae and it will automatically the stratigraphic and locality for the genus.

Thank you very much once more for using PFNR database.

Use comments to notify PFNR administrators of mistakes or incomplete information relevant to this record.