Patagoniapteris artabeae Gnaed. et Zavattieri

Plant Fossil Names Registry Number: PFN002692


Authors: S. C. Gnaedinger & A. M. Zavattieri

Rank: species

Genus: Patagoniapteris Gnaed. et Zavattieri

Reference: Gnaedinger, S. C. & Zavattieri, A. M. (2021): A new Late Triassic dipteridacean fern from the Paso Flores Formation, Neuquén Basin, Argentina. – Acta Palaeontologica Polonica 66(4): 885–900.

Page of description: 889

Illustrations or figures: figs 4–8

Name is type for

Patagoniapteris Gnaed. et Zavattieri 2021


Holotype MCF-PBPH 066, Palaeontological Collection, Museo Municipal “Carmen Funes”, Plaza Huincul city, Neuquén Province, Argentina
Figures: figs 4A, 5A, 6D, 7

Note: Paratype: MCF-PBPH 415.

Original diagnosis/description

Fan-shaped fronds dissected in two equal and opposite rachial arms, each one having more than 18 primary segments. The primary segments fused up to 1/3 of the total length of the preserved lamina, and the remaining part free, lanceolate, showing undulated to deeply dissected margins (less than 2/3 length of the secondary veins). Primary and secondary veins simple, whereas tertiary veins dichotomized and forming irregular polygonal meshes. Exindusiate sori arranged in two regular rows on side of the primary veins, and on both sides of the base of secondary veins. Circular sori with 45–60 sporangia. Annulus oblique and complete.


In honour of Analia B. Artabe, a recognized Argentinian palaeobotanist, for her important contributions mainly to the knowledge of Triassic and Jurassic floras of Argentina


Triassic, Upper Triassic, Rhaetian, Late Triassic (late Norian-Rhaetian)
Upper part of the Paso Flores Formation


Cañadón de Pancho area, south-west of the Neuquén Province, Patagonia

Plant fossil remain

macro- and meso-fossils-embryophytes except wood


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