Cryptospores, recovered from Ordovician through Devonian rocks, differ from trilete spores
in possessing distinctive configurations (ie hilate monads, dyads, and permanent tetrads) …

The earliest evidence for land plants comes from dispersed cryptospores from the
Ordovician, which dominated assemblages for 60 million years. Direct evidence of their …

The colonization of land by vascular plants is an extremely important phase in Earth's life
history. This key evolutionary process is thought to have begun during the Middle Cambrian …

The discovery of land plant spores with permanent tetrad and dyad configurations in Middle
Ordovician rocks indicated a pioneering phase of phytoterrestrialisation that predated trilete …

Key sources of information on the nature of early terrestrial ecosystems are the fossilized
remains of plants and associated organic encrustations, which are interpreted as either …

Compression fossils from the Silurian and Devonian of southern Britain, composed of
cuticles and tubes, were described by WH Lang as the genus Nematothallus and placed …

As part of a project investigating diversity in early terrestrial vegetation, new specimens of
the enigmatic, non-embryophyte Nematasketum diversiforme have been described from …

Sporangia, with their in situ cryptospores, spore masses, and a possible axis were identified
in marginal marine Ludlovian deposits from Gotland, Sweden by means of light-and …

A recently excavated field near the hamlet of Craswall in Herefordshire, south of Hay-on-
Wye, has yielded abundant fossil plants. They are preserved in sandstone and siltstone …

Short chains of discoidal, rarely spheroidal, structures, recovered by acid maceration of
Lower Devonian (Lochkovian) siltstones from the Welsh Borderland are interpreted as …