Abstract The Late Ordovician (Katian-Hirnantian) through earliest Silurian (Rhuddanian)
interval was a time of varying climate and sea level, marked by a peak glacial episode in the …

Recent molecular clock data suggest with high probability a Cambrian origin of
Embryophyta (also called land plants), indicating that their terrestrialization most probably …

Abstract The Ordovician of Scandinavia (ie Denmark, Norway and Sweden) has been
investigated for over two centuries and, through time, various chronostratigraphic schemes …

This paper summarizes recent knowledge on the palaeontology, biostratigraphy, correlation,
sea-level and climate history and isotopic geochemistry of the Ordovician rocks in the …

The latest Ordovician and earliest Silurian carbonate succession of the East Baltic region
has served as a global reference for studying the Hirnantian mass extinction and global …

Terrestrialization probably began more than one billion years ago and irreversibly altered
biogeochemical processes at planetary scale. In this paper, we focus on the terrestrialization …

Abstract The Ordovician‐Silurian transition (∼ 455–430 Ma) is characterized by repeated
climatic perturbations, concomitant with major changes in the global oceanic redox state …

Early to mid Palaeozoic marine phytoplankton are represented by acritarchs and associated
forms, which had a global distribution from the early Cambrian to the early Carboniferous …

The present study investigates the lower Silurian (Rhuddanian-Aeronian) Longmaxi
Formation of the Sangzhi block South China's Upper Yangtze Platform to establish the role …

Description. Amb is circular to sub-circular. Laesurae straight, simple or accompanied by
labra, up to 3 pum in overall width, three-fifths to nine-tenths of the amb radius in length …