Paleobotanical studies revealed evidence for the in situ formation of Gondwana coals, a previous unrecognised feature. The evidence included the presence of Vertebraria roots in shaly units both within ...
Allan Hills is known for its record of climate preserved in petrified logs 260 million years old in the Wellar coal measure. A study of the logs is part of a wider study on ancient forests in Jurassic ...
