Serialis elongata E.M.Friis, P.R.Crane et K.R.Pedersen

Plant Fossil Names Registry Number: PFN000127

Act LSID: urn:lsid:plantfossilnames.org:act:127

Authors: E. M. Friis, P. R. Crane & K. R. Pedersen

Rank: species

Genus: Serialis E.M.Friis, P.R.Crane et K.R.Pedersen

Reference: Friis, E. M., Crane, P. R. & Pedersen, K. R. (2019): Extinct Diversity among Early Cretaceous Angiosperms: Mesofossil Evidence of Early Magnoliales from Portugal. – International Journal of Plant Sciences 180(2): 93–127.

Page of description: 100

Illustrations or figures: figs 6, 7

Types

Original diagnosis/description

As for the genus with the following additions: Fruit elongate elliptical to ovate in lateral view. Surface of fruit irregular. Stigma restricted. Seeds two. Mesotesta thicker than endotesta. Mesotesta one cell layer thick; cells tall, palisade shaped with anticlinal cell walls thickened toward the inside of the seed and thin toward the outside; anticlinal walls slightly undulate toward the outer surface of mesotesta; inner surface of anticlinal walls smooth. Endoreticulate infillings of endotesta cells dense. Endotesta without interspersed cavities. Ovular vascular bundle in endotesta. Testa surrounding micropyle not swollen. Outer epidermis of tegmen with narrow, elongate, thin-walled cells.

Etymology

From the elongate cells of mesotesta (Latin elongatus [elongate]).

Stratigraphy

Cretaceous, Lower Cretaceous
late Aptian–early Albian; basal part of the Figueira da Foz Formation

Locality

Portugal
Vale de Água (lat. 39°37′15″N, long. 08°51′30″W)