Kvacekispermum costatum E.M.Friis, P.R.Crane et K.R.Pedersen

Plant Fossil Names Registry Number: PFN000457

Act LSID: urn:lsid:plantfossilnames.org:act:457

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

Rank: species

Genus: Kvacekispermum 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: 183

Illustrations or figures: Text-fig. 19a–c

Types

Holotype S174098, Palaeobotanical Collections, Department of Palaeobiology, the Swedish Museum of Natural History, Stockholm, Sweden
Figures: Text-fig. 19a

Note: Holotype is from (Torres Vedras sample 38.
Paratype: S174099 (Torres Vedras sample 38) housed in Palaeobotanical Collections, Department of Palaeobiology, the Swedish Museum of Natural History, Stockholm, Sweden.

Original protologue

Seeds tiny, broadly obovate in lateral view and almost circular in transverse section with an uneven surface of the endotesta formed from numerous
longitudinal ridges separated by shallow depressions. Endotesta comprised of a single layer of palisade-shaped cells with densely spaced crystals and fibrous infillings.

Etymology

From Latin: costatus referring to longitudinal ridges on the surface of the endotesta.

Stratigraphy

Cretaceous, Lower Cretaceous
Lower member of the Almargem Formation; Early Cretaceous (late Barremian-early Aptian)

Locality

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

Plant fossil remain

macro- and meso-fossils-embryophytes except wood