Elasmostemon paisii E.M.Friis, P.R.Crane, K.R.Pedersen, M.M.Mendes et J.Kvaček

Plant Fossil Names Registry Number: PFN002793

Act LSID: urn:lsid:plantfossilnames.org:act:2793

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

Rank: species

Genus: Elasmostemon E.M.Friis, P.R.Crane, K.R.Pedersen, M.M.Mendes et J.Kvaček

Reference: Friis, E. M., Crane, P. R., Pedersen, K. R., Mendes, M. M. & Kvaček, J. (2022): The Early Cretaceous mesofossil flora of Catefica, Portugal: angiosperms. – Fossil Imprint 78(2): 341–424.

Page of description: 376

Illustrations or figures: text-figs 25a–h, 26a–c

Name is type for

Elasmostemon E.M.Friis, P.R.Crane, K.R.Pedersen, M.M.Mendes et J.Kvaček 2022

Types

Holotype S105281, Palaeobotanical Collections, Department of Palaeobiology, the Swedish Museum of Natural History, Stockholm, Sweden
Figures: text-fig. 25d–h

Note: Holotype from sample Catefica 151.

Paratypes: S115859, S172560 (Catefica sample 49) (both housed in Palaeobotanical Collections, Department of Palaeobiology, the Swedish Museum of Natural History, Stockholm, Sweden).

Original diagnosis/description

Stamen laminar. Anthers tetrasporangiate, dithecate. Thecae positioned close to the stamen margin and separated by a massive, broad connective. Stamen apex rounded without an apical extension. Dehiscence longitudinal. Staminal tissue with larger cells, probably ethereal oil cells. Pollen monocolpate, circular in equatorial view, semitectate-reticulate. Reticulum loosely attached, heterobrochate. Aperture long, reaching the equator, with distinct margins. Columellae short.

Etymology

In honor of Professor João Pais (1949 – 2016) for his contribution to the palaeobotany and geology of Portugal.

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.

Plant fossil remain

macro- and meso-fossils-embryophytes except wood

Comments

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