Canaliculidium fissuratum Hedenäs, Bomfleur et E.M.Friis in Bomfleur, Hedenäs, Friis, Crane, Pedersen, Mendes & Kvaček

Plant Fossil Names Registry Number: PFN003152

Act LSID: urn:lsid:plantfossilnames.org:act:3152

Authors: L. Hedenäs, B. Bomfleur & E. M. Friis

Rank: species

Genus: Canaliculidium Hedenäs, Bomfleur et E.M.Friis in Bomfleur, Hedenäs, Friis, Crane, Pedersen, Mendes & Kvaček

Reference: Bomfleur, B., Hedenäs, L., Friis, E. M., Crane, P. R., Pedersen, K. R., Mendes, M. M. & Kvaček, J. (2023): Fossil Mosses from the Early Cretaceous Catefica mesofossil flora, Portugal – a window into the Mesozoic history of bryophytes. – Fossil Imprint 79(2): 103–125.

Page of description: 114

Illustrations or figures: text-fig. 8a–i

Name is type for

Types

Original diagnosis/description

Leaves with a narrowly ovate base that narrows gradually towards leaf apex. Costa occupying 50–70 % of the leaf width in the leaf base. In transverse section median longitudinal groove seen as a fissure or depression penetrating to one third to one half of the thickness of the costa. Costa with one layer of guide cells. Cells above and below guide cells thin-walled or partly slightly incrassate. Cells of the epidermis not differentiated from the internal cells of the costa.

Etymology

From Latin canaliculus, small gutter. The name refers to the longitudinal groove of the abaxial costa.

Stratigraphy

Cretaceous, Lower Cretaceous
Almargem Formation, Early Cretaceous (Aptian–early Albian)

Locality

Portugal
Catefica (39° 03ʹ 30ʺ N, 09°14ʹ 30ʺ W), between the villages of Catefica and Mugideira, about 4 km south of Torres Vedras