Devonian of Korea

Empowerment of Medical Toxicology in South Korea

In a recent issue of the Asia Pacific Journal of Medical Toxicology (APJMT), the importance of empowering medical toxicology in the Asia Pacific Region has been discussed. In the editorial by Dr. Afshari, it has been stated that national societies of medical toxicology are important infrastructure for the development of medical toxicology, and the Asia Pacific Association of Medical Toxicology ...

Glyptolepis from the Middle Devonian of Scotland

The Rhipidistia (Osteichthyes, Crossopterygii) comprise three superfamilies of Paleozoic fossil fishes, the Holoptychoidea, Osteolepoidea and Rhizodontoidea. Of these the members of the Holoptychoidea (families Holoptychidae and Porolepidae) are by far the least well known, and consequently there exists a considerable gap in our knowledge of the evolution of the Rhipidistia as a whole. The aim ...

Microanatomy of Early Devonian book lungs.

The book lungs of an exceptionally preserved fossil arachnid (Trigonotarbida) from the Early Devonian (approx. 410 Myr ago) Rhynie cherts of Scotland were studied using a non-destructive imaging technique. Our three-dimensional modelling of fine structures, based on assembling successive images made at different focal planes through the translucent chert matrix, revealed for the first time foss...

Korea- Italy Workshop on Membranes: A Long Relationship and Friendship between Korea and Italy

Division Rhyniophyta - Upper Silurian to Middle Devonian

Among the oldest convincing fossils of early vascular land plants are those of the Division Rhyniophyta. The members of this division consist of: (1) simple axes with cuticle, stomates, epidermis, cortex and a terete (circular) centrarch xylem (xylem development occurs from the center of the stem to the periphery), without well-developed appendages or roots; (2) simple, isotomous branching syst...