Vitis praerotundifolia Y.-Y.Chen, Boura et C.Del Rio in Chen, Boura, Orliac, Lebrun & Del Rio

Plant Fossil Names Registry Number: PFN003659

Act LSID: urn:lsid:plantfossilnames.org:act:3659

Authors: Y. Y. Chen, A. Boura & C. Del Rio

Rank: species

Reference for this name: Chen, Y. Y., Boura, A., Orliac, M., Lebrun, R. & Del Rio, C. (2026): Vitaceae seed and wood fossils from the Eocene–Oligocene phosphatic fissure fillings of Quercy, southwestern France. – Review of Palaeobotany and Palynology 352: 105637 (1–13).

Page of description: 6

Illustrations or figures: Fig. 5A–D

Types

Original diagnosis/description

Seeds obovoid to cordiform; surface faintly to distinctly rugose. Beak short, incorporated into the seed outline. Chalaza central, rounded to elliptical, distinctly sunken, with distinct radiating markings; chalaza–apex groove distinct; chalaza–base groove present, narrow to faint; apical notch shallow. Ventral infolds straight, long, divergent apically, extending more than 1/2 of the seed length; ventral infold cavities deep, with sharp edges. Raphe ridge narrow, slightly raised, tapering toward the seed base.

Etymology

The specific epithet praerotundifolia is derived from the Latin prae (before) and rotundifolia, referring to the morphological similarity of this fossil species to the extant Vitis rotundifolia Michx.

Stratigraphy

Paleogene
Late Eocene–Late Oligocene (MP18–MP25, ca. 37–27.3 Ma).

Locality

France
Sindou D and Baraval in the Lot, and Fontoffre 2, Gousnat, and Belgarric 3 in the Tarn-et-Garonne, Quercy region, southwestern France.