Weinmannioxylon trichospermoides Pujana in Pujana, Iglesias, Raffi & Olivero

Plant Fossil Names Registry Number: PFN000702

Act LSID: urn:lsid:plantfossilnames.org:act:702

Author: R. R. Pujana

Rank: species

Reference: Pujana, R. R., Iglesias, A., Raffi, M. E. & Olivero, E. B. (2018): Angiosperm fossil woods from the Upper Cretaceous of Western Antarctica (Santa Marta Formation). – Cretaceous Research 90: 349–362.

Page of description: 356

Illustrations or figures: fig. 4I–P

Types

Original diagnosis/description

Sample of secondary xylem with a minimum estimated diameter of 9 cm (Table 1). Growth ring boundaries indistinct to distinct. Wood diffuse-porous. Vessels mostly solitary. Scalariform perforation plates with usually more than 20 bars. Intervessel pits scalariform to transitional. Vessel-ray parenchyma pits opposite to scalariform. Axial parenchyma common, diffuse and diffuse-in-aggregates. Rays heterocellular, usually 2–3 cells wide. Fibres pitted.

Etymology

Trichospermoides, for the similarities with the wood of extant Weinmannia trichosperma.

Stratigraphy

Cretaceous, Upper Cretaceous, Campanian
Santa Marta Formation, Beta Member, lower Campanian

Locality

Antarctica
James Ross Island (fossiliferous site 2, 63°52′33″ S, 57°54′23″ W)