Ripogonum marambio A.Iglesias, Gallardo, Santillana et E.Silva

Plant Fossil Names Registry Number: PFN003483

Act LSID: urn:lsid:plantfossilnames.org:act:3483

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

Rank: species

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: 157

Illustrations or figures: figs 4.8, 7.9–7.10

Types

Original diagnosis/description

Microphyll leaf, margin erose, acrodromous primary venation, six basal veins plus a couple of suprabasal secondary veins, brochidodromous secondary venation, two or more perimarginal veins, intercostal venation opposite percurrent, course irregular, marginal ultimate venation looped.

Etymology

The specific epithet marambio is proposed in honor of Gustavo Argentino Marambio, a pilot from the Argentine Airforce and a pioneer of Antarctic explorations. His last name also corresponds to the island where the fossil material was discovered: Isla Marambio (=Seymour Island).

Stratigraphy

Paleogene, Paleocene
Upper Paleocene (C25n, Thanetian), Cross Valley-Wiman Formation, Bahía Pingüino Allomember.

Locality

Antarctica
Marambio (=Seymour) Island, Antarctic Peninsula.