Uruguaianoxylon ragoneseae M.J.Franco, C.M.Mart.Mart. et Brea

Plant Fossil Names Registry Number: PFN003362

Act LSID: urn:lsid:plantfossilnames.org:act:3362

Authors: M. J. Franco, C. M. Martinez Martinez & M. Brea

Rank: species

Genus:

Reference for this name: Franco, M. J., Martinez Martinez, C. M. & Brea, M. (2024): Neogene Myrtaceae fossil woods from the Ituzaingó Formation, Paraná Basin, northeastern Argentina: Anatomical, systematic and palaeoenvironmental insights. – IAWA Journal 46(2): 183–204.

Page of description: 186

Types

Original diagnosis/description

Wood diffuse porous; vessels exclusively solitary (90% or more), and small to very small (<100 μm); simple perforation plates; small, vestured, alternate, and roundedintervesselpits;vessel–raypittingwithdistinctborders, similar to intervessel pits in size and shape throughout the ray cell; vascular/vasicentric tracheids present; fibres with distinctly bordered pits; axial parenchyma apotracheal diffuse and diffuse-in-aggregates, ca. 3–7 cells per parenchyma strand; rays 1–3-seriate, heterocellular with body ray cells procumbent with 2–4 or over 4 rows of upright and/or square marginal cells, or procumbent, upright, and square cells mixed throughout the ray, disjunctive ray parenchyma cell walls present.

Etymology

The specific epithet “ragoneseae” comes from to Ana María Ragonese, an Argentinean botanist and palaeobotanist who studied the morphology and wood anatomyof fossil Myrtaceae.

Stratigraphy

Neogene, Miocene
Ituzaingó Formation, Late Miocene.

Locality

Argentina
Paraná Basin, Arroyo El Espinillo, Entre Ríos Province, Argentina.