Palmer Land
The Latady Basin in the southern Antarctic Peninsula–Palmer Land–contains volcanic rock, evidencing a large magmatic event in the Middle Cretaceous referred to as the Palmer Land event. This area has yielded an array of both macro- and micro- plant and mollusk fossils representative of the Early Cretaceous, as well as the Middle to Late Jurassic. The area that is now the Antarctic Peninsula, throughout the Mesozoic, was subducting the proto-Pacific plate, causing volcanic activity.