Patagoniapteris artabeae Gnaed. et Zavattieri

Plant Fossil Names Registry Number: PFN002692

Act LSID: urn:lsid:plantfossilnames.org:act:2692

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

Types

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.

Etymology

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

Stratigraphy

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

Locality

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