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

Plant Fossil Names Registry Number: PFN000132


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: 111

Illustrations or figures: figs 17, 18


Holotype S175147 (Famalicão 25), Palaeobotanical Collections, Department of Palaeobiology, the Swedish Museum of Natural History, Stockholm, Sweden
Figures: figs 17A–C, 18A, B

Note: Paratypes: S175148, S175149, S175183 (Famalicão sample 25)

Original diagnosis/description

As for the genus with the following additions: Fruit elliptical to circular in lateral view. Surface of fruit slightly rugulate. Seeds three. Mesotesta thicker than the endotesta. Mesotesta one cell layer thick; cells palisade shaped of uneven height resulting in a rugulate surface, anticlinal walls not undulate. Endoreticulate infillings of endotesta cells weakly developed. Endotesta without interspersed cavities. Endotestal cells fibrous. Ovular vascular bundle between mesotesta and endotesta. Testa surrounding micropyle not swollen.


Fromthe wavy-rugulate surface of the mesotesta in the contact regions between two seeds (Latin undatus [wavy].


Cretaceous, Lower Cretaceous
below the Figueira da Foz Formation; Early Cretaceous (late Aptian–early Albian or older)


Famalicão (lat. 39°42′16″N, long. 8°46′12″W)

Plant fossil remain

macro- and meso-fossils-embryophytes except wood


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