Austroginkgoxylon dutrae L.C.A.Martínez et Leppe in Martínez, Leppe, Manríquez, Pino, Trevisan, Manfroi & Mansilla

Plant Fossil Names Registry Number: PFN003127

Act LSID: urn:lsid:plantfossilnames.org:act:3127

Authors: L. C. A. Martínez & M. Leppe

Rank: species

Genus: Austroginkgoxylon L.C.A.Martínez et Leppe in Martínez, Leppe, Manríquez, Pino, Trevisan, Manfroi & Mansilla

Reference: Martínez, L. C. A., Leppe, M., Manríquez, L. L.M., Pino, J. P., Trevisan, C., Manfroi, J. & Mansilla, H. (2023): A unique Late Cretaceous fossil wood assemblage from Chilean Patagonia provides clues to a high-latitude continental environment. – Papers in Palaeontology 9(6): 1–45., link

Page of description: 3-5

Illustrations or figures: Figs 3–5

Name is type for

Types

Original diagnosis/description

Secondary pycnoxylic wood. Abietinoid type pitting in the radial walls of tracheids, from uniseriate to triseriate. Biseriate and triseriate pits in opposite arrangement. Sanio rims. Some ends of tracheids in radial section irregular, bend-like or overlapping each other. Rays uniseriate, with 4 (1–12) cells in height. Vertical and horizontal walls of ray parenchyma cells smooth (unpitted). In the earlywood, cross-field pitting of araucarioid type and, in latewood, cross-field pitting of cupressoid type. Cross–field pitting with 4 (1–11) pits. Axial parenchyma present with cells in long chains, some parenchyma cells commonly inflated cells and with druses.

Etymology

The specific name is dedicated to Prof. Tânia Dutra, who made significant contributions to our knowledge of fossil floras from South America and Antarctica.

Stratigraphy

Cretaceous, Upper Cretaceous, Maastrichtian
Austral Basin. Dorotea Formation.

Locality

Chile
El Puesto. Las Chinas River Valley, Magallanes Region, Chile.