Irizaripteris antarcticus A.Iglesias, Gallardo, Santillana et E.Silva

Plant Fossil Names Registry Number: PFN003478

Act LSID: urn:lsid:plantfossilnames.org:act:3478

Authors: A. Iglesias, R. A. Gallardo, S. Santillana & E. Silva

Rank: species

Genus: Irizaripteris A.Iglesias, Gallardo, Santillana et E.Silva

Reference for this name: Iglesias, A., Gallardo, R. A., Santillana, S. & Silva, E. (2025): New plants from the Upper Paleocene Cross Valley-Wiman Formation, Marambio (=Seymour) Island, Antarctic Peninsula. – Ameghiniana 62(2): 144–174.

Page of description: 153

Illustrations or figures: figs 3.9–3.11, 7.3–7.4

Name is type for

Types

Original diagnosis/description

Combined generic and specific diagnoses. Pinna pinnatisect; pinnulae small, shape oblong, broad base; sori rounded; peltate circular indusia; each pinnula with one principal vein that may fork once; branching minor veins and veinlets anastomosed; an independent minor veinlet may innerve the sinus.

Etymology

The specific epithet antarcticus is derived from the name of the steamship (Antarctic) on this Swedish expedition (led by Nordenskjöld), which in February 1903, was trapped in pack ice and being destroyed.

Stratigraphy

Paleogene, Paleocene
Cross Valley-Wiman Formation, Bahía Pingüino Allomember.

Locality

Antarctica
Marambio (=Seymour) Island, Antarctic Peninsula