Archaefagacea futabensis Mas.Takah., E.M.Friis, Herend. et P.R.Crane

Plant Fossil Names Registry Number: PFN002804

Act LSID: urn:lsid:plantfossilnames.org:act:2804

Authors: M. Takahashi, E. M. Friis, P. S. Herendeen & P. R. Crane

Rank: species

Genus: Archaefagacea Mas.Takah., E.M.Friis, Herend. et P.R.Crane

Reference: Takahashi, M., Friis, E. M., Herendeen, P. S. & Crane, P. R. (2008): Fossil Flowers of Fagales from the Kamikitaba Locality (Early Coniacian; Late Cretaceous) of Northeastern Japan. – International Journal of Plant Sciences 169(7): 899–907., link

Page of description: 900

Illustrations or figures: figs 1–4

Name is type for

Types

Original diagnosis/description

Fruits distinctly triangular to three-lobed in cross section, with the sides approximately equal in length. External surface of the fruit smooth except for six longitudinal ribs that run from the base to each tepal. Associated pollen grains small, prolate, triaperturate; tectum finely striate-rugulate.

Etymology

From the geologic occurrence of the material in the Futaba Group.

Stratigraphy

Cretaceous, Upper Cretaceous, Coniacian
Asamigawa Member, Ashizawa Formation, Futaba Group, early Coniacian

Locality

Japan
along a tributary of the Kitaba River in Kamikitaba, Hirono-machi (study route B of Ando et al. [1995]; 37°12′N, 140°57′E)