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

Plant Fossil Names Registry Number: PFN000127


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


Holotype S174169 (Vale de Água 408), Palaeobotanical Collections, Department of Palaeobiology, the Swedish Museum of Natural History, Stockholm, Sweden
Figures: figs 6A–C, 7A, C

Note: Paratypes: S175159 (Vale de Água sample 19), S175160 (Vale de Água sample 329), S175139 (Vale de Água sample 383), S175141 (Vale de Água sample 408).

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.


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


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


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

Plant fossil remain

macro- and meso-fossils-embryophytes except wood


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