Anaspermum E.M.Friis, P.R.Crane et K.R.Pedersen

Plant Fossil Names Registry Number: PFN000454


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

Rank: genus

Reference: Friis, E. M., Crane, P. R. & Pedersen, K. R. (2019): The Early Cretaceous mesofossil flora of Torres Vedras (NE of Forte da Forca), Portugal: a palaeofloristic analysis of an early angiosperm community. – Fossil Imprint 75(2): 153–257.

Page of description: 176


Anaspermum operculatum E.M.Friis, P.R.Crane et K.R.Pedersen

Original diagnosis/description

Seeds small, anatropous, apparently bitegmic and exotestal, occurring isolated and singly. Seeds bilaterally symmetrical with a dorsiventral plane of
symmetry. Seed surface smooth without longitudinal ridges. Course of raphe seen on the surface of the seed as a slightly raised ridge. Micropyle and hilar scar closely spaced on a small cap-like structure. Exotesta of short sclerenchyma cells with undulate anticlinal walls, resulting in stellateundulate facets and a jigsaw puzzle-like pattern on the seed surface.


From the similarity to seeds of extant ANA grade angiosperms (Amborellaceae, Nymphaeales, Austrobaileyales).

Plant fossil remain

macro- and meso-fossils-embryophytes except wood

Names associated with genus

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


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