Tumidopteris Naugolnykh

Plant Fossil Names Registry Number: PFN001922

Act LSID: urn:lsid:plantfossilnames.org:act:1922

Author: S. V. Naugolnykh

Rank: genus

Reference: Naugolnykh, S. V. (2013): Permian Ferns of Western Angaraland. – Paleontological Journal 47(12): 1379–1462., link

Page of description: 1426

Type

Original diagnosis/description

Fronds at least bipinnate. Pinnules sphenopteroid, pinna rachis with well-developed limb. Pinnule apex acute or pointed. Elliptical sporangia arranged in rosettelike sori, with 8–11 sporangia per sorus. Sporangial bases very slightly fused and attached to round receptacle. Apical part of sporangium with small but distinct sinus.

Etymology

From the Latin tumidus (swollen), based on the voluminous, as though swollen sporangia.