Liriodendroidea tenuitesta Frumin et E.M.Friis

Plant Fossil Names Registry Number: PFN002874

Act LSID: urn:lsid:plantfossilnames.org:act:2874

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: 275

Illustrations or figures: figs 5a–h, 6a–f

Types

Original diagnosis/description

Seed broadly winged; main seed body (without wing) ovate to broadly ovate in outline, rounded to slightly concave at the chalazal end of the seed and gradually tapering into an acuminate micropylar area; raphe sinus lacking or only weakly developed. Outer surface of seed smooth with circular tubercles (secretory cells) irregularly scattered over the main seed body; heteropyle simple, wide, and more or less triangular in shape. Surface of wing with fingerprint-like pattern. Surface of endotesta with a faint striate pattern. Endotesta thin, with one layer of palisade-like sclerenchyma cells, each with imprints of cubic crystals.

Etymology

From Lat. tenuis (thin, slender) referring to the thin testa of the seed wall.

Stratigraphy

Cretaceous, Upper Cretaceous
Cenomanian-Turonian

Locality

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