Dragonflies in the Carboniferous 

A correspondent has sent me the Newsletter of the British Dragonflies Society which contains an interesting aricle about Griffinflies. You can sign up for their Newsletter near the bottom of THIS PAGE.

To save you going through the rather long newsletter I have reformatted the Griffinfly section and you can get it HERE. Or read it below.

For me the greatest interest was the discussion on the gigantism of the beast and it relationship to the higher oxygen levels of the Carboniferous. Gigantism may have more to do with the lack of predators than with oxygen levels. - Very interesting!