A Middle Devonian Callixylon (Archaeopteridales) from Ronquières, Belgium

in Review of Palaeobotany and Palynology (2012), 183

A climate model from 80 AD to 1350 AD for the Hautes Fagnes plateau (Belgium), based on pollen grains, testate amoebae and humification analyses. Application of the model to Subatlantic palaeolandslides in the Pays de Herve (eastern Belgium).

Conference (2012, March 01)

Du nouveau sur les angiospermes du Crétacé

in Encyclopaedia Universalis (2012)

Palaeozoic Innovations in the Micro- and Megafossil Plant Record: from the Earliest Plant spores to the Earliest Seeds

in Talent, John (Ed.) Global Biodiversity, Extinction Intervals and Biogeographic Perturbations Through Time (2012)

Diverse assemblages of Mid Devonian megaspores from Libya

in Review of Palaeobotany and Palynology (2011), 165

[en] A restudy of Devonian palynological assemblages of samples from the A1-69 borehole, drilled in the Ghadamis Basin, western Libya, North Africa has led to the discovery of numerous well-preserved ... [more ▼]

[en] A restudy of Devonian palynological assemblages of samples from the A1-69 borehole, drilled in the Ghadamis Basin, western Libya, North Africa has led to the discovery of numerous well-preserved megaspores amongst abundant miospores, rare acritarchs and rare chitinozoans. Thirteen samples from base to top, 1496 ft (456 m) up to 965 ft (294 m), contain the richest Devonian megaspore assemblages from northwestern Gondwana. The section is dated by a rich diverse miospore assemblage indicating the presence of the upper part of the AD pre-Lem Biozone up to the lower part of the TCo Oppel Zone, ranging from a latest Eifelian or earliest Givetian age up to a latest Givetian or an earliest Frasnian age. Seventeen megaspore taxa have been identified. Among them, two new species (Biharisporites lugardonii and Lagenicula milleri) and four new varieties (Corystisporites acutispinosus var. acutispinosus and var. bullatus, Heliotriletes longispinosus var. longispinosus and var. radiatus) are described. One new possible megaspore species is also described: Verruciretusispora labiosa sp. nov. One core sample (1293 ft, 394 m) contains several specimens of very large megaspores (ca. 1 mm), the largest known from Devonian localities (except for one specimen observed in the Givetian from Belgium). Among the 17 megaspore taxa from Libya, 6 are present on the Euramerican Continent. This observation is in accordance with previous palynological conclusions that favour the absence of palaeogeographic barriers between the Euramerican and Gondwanan continents that are suggested to be grouped together in a “Pre-Pangea” land mass. [less ▲]

Early evolution of life cycles in embryophytes: A focus on the fossil evidence of gametophyte/sporophyte size and morphological complexity.

in Journal of Systematics and Evolution (2011), 49

Miscellanea palaeontologica 2010

Book published by Paléogéobio. Paléobot. Paléopalyno. (2010)

Palaeogeographic and palaeoclimatic considerations based on Ordovician to Lochkovian vegetation

in Special Publication - Geological Society of London (2010), 339

Botanique : des spores vieilles de 450 millions d'années

in Encyclopaedia Universalis (2010)

A new definition and a lectotypification of the genus Cooksonia Lang 1937

in International Journal of Plant Sciences (2010), 171