Lacinipetalum spectabilum Jud, Gandolfo, A.Iglesias et Wilf

Plant Fossil Names Registry Number: PFN001735

Act LSID: urn:lsid:plantfossilnames.org:act:1735

Authors: N. A. Jud, M. A. Gandolfo, A. Iglesias & P. Wilf

Rank: species

Genus: Lacinipetalum Jud, Gandolfo, A.Iglesias et Wilf

Reference: Jud, N. A., Gandolfo, M. A., Iglesias, A. & Wilf, P. (2018): Fossil flowers from the early Palaeocene of Patagonia, Argentina, with affinity to Schizomerieae (Cunoniaceae). – Annals of Botany 121(3): 431–442.

Page of description: 434

Illustrations or figures: figs 2, 3, 4A

Name is type for

Lacinipetalum Jud, Gandolfo, A.Iglesias et Wilf 2018

Types

Holotype MPEF-Pb 8423, Museo Paleontológico Egidio Feruglio, Trelew, Patagonia, Argentina
Figures: fig. 2A

Note: Paratypes: From PL-2 MPEF-Pb 8423 (Figs 2A and 4A), MPEF-Pb 8517 (Fig. 2B), MPEF-Pb 8443a (Fig. 2C), MPEF-Pb 8447a (Fig. 2D), MPEF-Pb 8414a (Fig. 2E), MPEF-Pb 8455 (Fig. 2F), MPEF-Pb 8444a (Fig. 2G), MPEF-Pb 8452a (Figs 2H and 4B), and MPEF-Pb 8463 (Fig. 3A); from Palacio de los Loros-5 (PL-5): MPEF-Pb 9727a (Fig. 3B); from Las Flores locality: MPEF-Pb 9728 (Fig. 3C), housed in Museo Paleontológico Egidio Feruglio, Trelew, Patagonia, Argentina

Original diagnosis/description

Flowers pedicellate, 8- to 10-merous, actinomorphic, perfect; hypanthium palletiform; sepals lanceolate, inserted at the margin of the hypanthium; petals flabellate, laciniate, and equal or longer than the sepals; petal incision varies from ternate to twice ternate; apices of the petal lobes acute; anthers dorsifixed, versatile, about as long as wide, with two pollen sacs, and with a connective extension that is shorter than the length of the pollen sacs; pollen grains tricolporate, prolate, isopolar; exine homogeneous, punctate; gynoecium superior and syncarpous with two or four erect and free stylodia; ovary pubescent; floral disc filling the hypanthium.

Etymology

The specific epithet for the numerous perianth parts.

Stratigraphy

Paleogene, Paleocene, Danian
upper Salamanca Formation, Chron C28n, early Danian

Locality

Argentina
Palacio de los Loros-2 (PL-2), Chubut Province

Plant fossil remain

macro- and meso-fossils-embryophytes except wood