via Freshly Brewed Thoughts by Laura Hilliger
Some 370 million years ago cladoxylopsid trees stood at least eight meters tall, capped by branches with twiggy appendages instead of leaves. They looked a bit like spindly palm trees. Today their scant remains reveal little about their insides; in most cases their innards had rotted before the trees fossilized, and storms had filled them with sand. But the recent find of two well-preserved fossils in China has exposed the trees’ inner workings—which are like no other species studied before.