large pine cones

There is a growing need for all of us to seriously care for our environment. The health of our environment is going down due to rapid industrialization, urbanization, and increasing levels of pollution. Trees play a key role in keeping our environment in a good condition. This is why a lot of effort is placed upon planting trees as they provide us with oxygen, store carbon dioxide, support the soil, and sustain wildlife.

Therefore, in this blog, we will be taking a look at three of the most well-known trees that have gone extinct millions of years ago. By reading about these trees, we will realize the importance of protecting today’s trees facing imminent extinction. Let’s take a look at them.

Araucaria mirabilis

This was a species of coniferous tree which, it is believed, would have been 100 meters tall. They were present in Patagonia, Argentina about 160 million years ago. They met their demise through a volcanic eruption. The volcanic ash had covered these trees just about the time their pine cones had properly matured. These millions of years old pine cones incredibly preserved, and some have been collected and can be purchased online. If you have been thinking where to buy large pine cones, then you should check Buried Treasure Fossils as here you will be able to get your hands on old, genuine pinecones.


In today’s times, chances are you would have looked upon this particular type of tree with some bewilderment. Reason being, unlike coniferous and deciduous trees of today, Sigillaria did not spread or reproduce through seeds. Instead, these plants reproduced through spores and appeared like trees, in the late Carboniferous period, a period in which they happily thrived. Sigillaria were able to reach heights up to 30 meters, meaning they were quite tall.

Araucarioxylon arizonicum

These trees were a species of conifer. Chances are you must have heard or seen the stonelike version of this tree at the Petrified Forest National Park in Arizona, USA. Araucarioxylon trees were present some 200 million years ago. Now, they are Arizona’s state fossil. These trees were known to have a massive trunk and are at times called ‘rainbow wood’ because the fossilized parts of these trees have been discovered in different colors.

At Buried Treasure Fossils, you can get genuine fossils of sharks, dinosaurs, mammals, ammonites and much, much more. And of course, you can get fossils of ancient trees as well, for example, of Araucaria mirabilis pine cones.