Liriodendroidea costata Frumin et E.M.Friis

Plant Fossil Names Registry Number: PFN002873

Act LSID: urn:lsid:plantfossilnames.org:act:2873

Authors: S. I. Frumin & E. M. Friis

Rank: species

Genus: Liriodendroidea Erw.Knobloch et Mai

Reference: Frumin, S. I. & Friis, E. M. (1999): Magnoliid reproductive organs from the Cenomanian-Turonian of north-western Kazakhstan: Magnoliaceae and Illiciaceae. – Plant Systematics and Evolution 216(3–4): 265–288., link

Page of description: 273

Illustrations or figures: figs 3a–f, 4a, b

Types

Original diagnosis/description

Main seed body elliptical to ovate in outline, apically obtuse with a distinct acuminate micropylar beak, and basally acute to rounded; raphe sinus wide and deep, ovate in outline with distinct margins. Surface of endotesta smooth on ventral side while strongly ribbed on dorsal side of seed with 6–7 longitudinal ridges. Endotesta thick consisting of one layer of straight palisade-shaped sclerenchyma cells.

Etymology

From Lat. costatus (ribbed) referring to the ribbed testa of the seed.

Stratigraphy

Cretaceous, Upper Cretaceous
Cenomanian-Turonian

Locality

Kazakhstan
Sarbay Quarry near the town of Rudnyy (Northern Kazakhstan)