Platydiscus peltatus Schönenb. et E.M.Friis in Schönenberger, Friis, Matthews & Endress

Plant Fossil Names Registry Number: PFN002812

Act LSID: urn:lsid:plantfossilnames.org:act:2812

Authors: J. Schönenberger & E. M. Friis

Rank: species

Genus: Platydiscus Schönenb. et E.M.Friis in Schönenberger, Friis, Matthews & Endress

Reference: Schönenberger, J., Friis, E. M., Matthews, M. L. & Endress, P. K. (2001): Cunoniaceae in the Cretaceous of Europe: Evidence from fossil flowers. – Annals of Botany 88(3): 423–437.

Page of description: 435

Illustrations or figures: figs 1–41

Name is type for

Types

Original diagnosis/description

As for the genus with the following additions: calyx valvate; sepals ovate-triangular; corolla imbricate; petals with narrow base, clawed (trullate in young stages), ribbed, petal tips secretory; filaments linear; anther dehiscence introrse; connective with dorsal furrow; exine reticulate with decreasing lumina towards poles and colpi; gynoecium with central canal in symplicate region; carpels with ventral slits; placenta involute-protruding-diffuse; indumentum of multicellular, secretory, peltate trichomes with multiseriate stalk on outer surface of floral base and abaxial sides of sepals and petals; simple, unicellular trichomes on floral base, abaxial side of sepals, nectary, and free parts of carpels; unicellular trichomes with swollen base on adaxial side of petals.

Etymology

The specific epithet refers to the conspicuous peltate trichomes on the outer surface of the floral base, on the sepals, and on the petals.

Stratigraphy

Cretaceous, Upper Cretaceous
Fluviatile-lacustrine sequence; Late Santonian–Early Campanian

Locality

Sweden
Höganäs AB quarry at Åsen near Axeltorp, Scania