Podocarpoxylon Gothan reviewed in the light of a new species from the Eocene of Patagonia

PUJANA, R. R.; RUIZ, D. P.

IAWA JOURNAL

INT ASSOC WOOD ANATOMISTS

Año: 2017

0928-1541

A new species of Podocarpoxylon Gothan is described based on samples collected from sediments of the río turbio Formation. the fossil-bearing strataare lower Eocene (47?46 Mya) according to recent geochronological ages. thenew species has indistinct growth ring boundaries, abundant and frequentlytangentially zonate axial parenchyma, uniseriate pitting on radial walls, onehalf-bordered pit (= oculipore) with reduced borders and vertical aperture inclination per cross-field and medium height uniseriate rays. The new materialis compared with all fossil-species of Podocarpoxylon and an inventory of allPodocarpoxylon species previously described is provided. Cross-field characters of the new species indicate affinity to the Podocarpaceae. The presence ofPodocarpaceae wood augments other evidence of this family from the samestratigraphic unit.