Podocarpoxylon paradoxi L.C.A.Martínez et Leppe in Martínez, Leppe, Manríquez, Pino, Trevisan, Manfroi & Mansilla

Plant Fossil Names Registry Number: PFN003128

Act LSID: urn:lsid:plantfossilnames.org:act:3128

Authors: L. C. A. Martínez & M. Leppe

Rank: species

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: 11-13

Illustrations or figures: fig. 7

Types

Original diagnosis/description

Growth rings distinct. Radial pitting bordered, uniseriate, mostly spaced (abietinean), occasional opposite biseriate pits. Axial parenchyma diffuse. Cross‐fields with 1–3 pits of taxodioid type in the earlywood, and 1 pit of cupressoid type in the latewood with oblique included apertures. Horizontal and end walls of ray parenchyma cells smooth. Homocellular rays uniseriate, 6 (range, 1–13) cells in height (medium in height). Pits on tangential walls of tracheids.

Etymology

The name of the species is derived from the Latin noun paradoxum, for the unexpected or unusual type of annual rings found in this species, suggesting that it is probably a deciduous tree.

Stratigraphy

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

Locality

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