Mcdougallia irregularis E.M.Friis, P.R.Crane et K.R.Pedersen

Plant Fossil Names Registry Number: PFN000494


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

Rank: species

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

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: 233

Illustrations or figures: Text-fig. 51a–f

Name is type for

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


Holotype S148215, Palaeobotanical Collections, Department of Palaeobiology, the Swedish Museum of Natural History, Stockholm, Sweden
Figures: Text-fig. 51a–f

Note: Holotype is from Torres Vedras sample 43.

Original diagnosis/description

Pollen, small, almost spherical, tricolpate. Colpi long, reaching almost to the poles sometimes separated by irregular folds. Exine tectate-punctate in the polar regions and along the colpi; tectate-foveolate to reticulate in mesocolpial regions. Columellae short. Colpus margin distinct. Colpus membrane verrucate. Orbicules small, spherical with faintly striate surface.


From Latin: irregularis referring to the irregular folds and colpi.


Cretaceous, Lower Cretaceous
Lower member of the Almargem Formation; Early Cretaceous (late Barremianearly Aptian).


Torres Vedras (NE of Forte de Forca; 39°06′13″ N, 9°14′47″ W).

Plant fossil remain

pollen and spores


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