Endressistemon cateficensis E.M.Friis, P.R.Crane, K.R.Pedersen, M.M.Mendes et J.Kvaček

Plant Fossil Names Registry Number: PFN002797

Act LSID: urn:lsid:plantfossilnames.org:act:2797

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

Rank: species

Genus: Endressistemon 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: 381

Illustrations or figures: text-fig. 28a–g

Name is type for

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

Types

Holotype S107778, Palaeobotanical Collections, Department of Palaeobiology, the Swedish Museum of Natural History, Stockholm, Sweden
Figures: text-fig. 28a, b, e, f

Note: Hlotype from sample Catefica 49.

Paratypes: S107751, S107768, S107769, S266022 (Catefica sample 49) (all housed in Palaeobotanical Collections, Department of Palaeobiology, the Swedish Museum of Natural History, Stockholm, Sweden).

Original diagnosis/description

Staminate structure consisting of a short, common stalk bearing two fully developed lateral stamens with a median axis-like structure between them. Stamens tetrasporangiate and dithecate with sessile, basifixed anthers attached directly to the common stalk. Thecae straight and parallel in each stamen, but the thecae of the two stamens diverging apically. Apex of the two stamens with prominent coriaceous projection that is also seen on the median axis-like structure. A bundle extends from the common base into the apical projection of the two stamens and the median axis-like structure. Pollen grains monocolpate, semitectate-reticulate.

Etymology

From the Catefica locality where the fossils were collected.

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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