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

Plant Fossil Names Registry Number: PFN000125


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: 95

Illustrations or figures: figs 1–3

Name is type for

Serialis E.M.Friis, P.R.Crane et K.R.Pedersen 2019


Holotype S171535 (Torres Vedras sample 43), Palaeobotanical Collections, Department of Palaeobiology, the Swedish Museum of Natural History, Stockholm, Sweden
Figures: figs 1A–C, 2A–D, 3

Note: Paratypes: S170079, S174480, S174687 (Torres Vedras sample 43), S100769, S100770 (Torres Vedras sample 44), S175128 (Torres Vedras sample 145).

Original diagnosis/description

As for the genus with the following additions: Fruit elongate elliptical to ovate in lateral view. Surface of fruit smooth to faintly wrinkled. Stigma decurrent. Pollen semitectate-reticulate. Seeds four to six. Endotesta and mesotesta of approximately the same thickness. Mesotesta one cell layer thick; cells cubic with thick, undulate anticlinal cell walls; inner surface of anticlinal walls smooth. Endoreticulate infillings of endotesta cells dense. Endotesta without interspersed cavities. Ovular vascular bundle between mesotesta and endotesta. Testa surrounding micropyle not swollen. Outer epidermis of tegmen with slightly elongate, thin-walled cells.


From the age of the fossils compared to their living relatives (Latin antiquus [old]).


Cretaceous, Lower Cretaceous
lower part of Almargem Formation; Early Cretaceous (late Barremian–early Aptian)


Torres Vedras (NE of Forte de Forca; lat. 39°06′13″N, long. 09°14′47″W)

Plant fossil remain

macro- and meso-fossils-embryophytes except wood


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