7,000 year old bison teeth found at the Cherney Bison Site. For a donation of $300 or more you can get your very own bison tooth as a thanks for helping fund the excavation of this incredibly unique fossil site in Coon Rapids, Minnesota.

A flower beetle in baltic amber. We hope to raise money for a museum microscope so kids can examine insect specimens like this one!

Pegmatite is a type of igneus rock that frequently contains large crystals of quartz, feldspar, or mica. When looked at with a longwave UV flashlight, these minerals seem to glow! Kids at our museum can see this for themselves up close and personal.

Searching for fossils in the Badlands is an unforgettable adventure. There is not a house, telephone pole, or any sign of modern civilization, conditions are hot, and without amenities. Most of the fossils from this region are from the Eocene, like this hoplophoneus (a saber cat) skull fragment.

During the Silurian Period, 430 million years ago, equatorial reef systems developed in the seas. The reefs were home to all kinds of invertebrates and among the most plentiful were brachiopods, bryozoans, and gastropods, seen in this specimen in our collection.

Woolly mammoths have two sets of tusks that grow continuously throughout life, about 6 inches per year. They have growth rings that are similar in appearance to growth rings of a tree. The rings can also be used to reveal which month the animal died.

7,000 year old bison teeth found at the Cherney Bison Site. For a donation of $200 or more you can get your very own bison tooth as a thanks for helping fund the excavation of this incredibly unique fossil site in Coon Rapids, Minnesota.

Pegmatite is a type of igneus rock that frequently contains large crystals of quartz, feldspar, or mica. When looked at with a longwave UV flashlight, these minerals seem to glow! Kids at our museum can see this for themselves up close and personal.

This fossil is of a lobed-finned fish named Osteolepsis macrolepidotus and was found in Scotland. The Devonian Period (named after fossils first found in Devon, England), is known as "The age of fishes" and was fish transformed into three major groups: lobe-finned, ray-finned, and sharks.

Ammonites were abundant in the seas during the Jurassic Period. Ammonites are shelled cephalopods, a class of marine animals that include octopuses, squid, cuttlefishes and nautiluses. Ammonites have retractable tentacles for catching small prey, although some species filter-fed for small plankton.

A flower beetle in baltic amber. We hope to raise money for a museum microscope so kids can examine insect specimens like this one!

Adult Mammoths had one natural enemy–Neanderthals. This Neanderthal scraper in our collection was used for preparing large mammoth hides. The Mousterian style of manufacture reveals it to be 120,000-200,000 years old.

7,000 year old bison teeth found at the Cherney Bison Site. For a donation of $300 or more you can get your very own bison tooth as a thanks for helping fund the excavation of this incredibly unique fossil site in Coon Rapids, Minnesota.

This Dimetrodon footprint was found in a fossilized swamp in New Mexico and dates from the late Carboniferous to early Permian Period, and is 300 million years old. Dimetrodons lived during the Permian period and went extinct 40 million years before dinosaurs evolved.

7,000 year old bison teeth found at the Cherney Bison Site. For a donation of $200 or more you can get your very own bison tooth as a thanks for helping fund the excavation of this incredibly unique fossil site in Coon Rapids, Minnesota.

7,000 year old bison teeth found at the Cherney Bison Site. For a donation of $200 or more you can get your very own bison tooth as a thanks for helping fund the excavation of this incredibly unique fossil site in Coon Rapids, Minnesota.

Titanus giganteus is the world's largest beetle! They can grow up to 7 inches long and are native to tropical forests in South America.

Check out our write-up in @popsci.com! www.popsci.com/science/amat...

During the Silurian Period, 430 million years ago, equatorial reef systems developed in the seas. The reefs were home to all kinds of invertebrates and among the most plentiful were brachiopods, bryozoans, and gastropods, seen in this specimen in our collection.

Glossopteris were the dominant trees across the supercontinent Gondwana during the Permian Period. Come see this and many other fossils and minerals in our collection that tell the story of Antarctica when it was a rainforest 270 million years ago.

Titanus giganteus is the world's largest beetle! They can grow up to 7 inches long and are native to tropical forests in South America.

Acrocanthosaurus was the top predator of the early Cretaceous. This theropod dinosaur weighed 15,000 pounds, measured 38 feet tall, had a 51 inch long skull, and a running speed of 20 mph. Prickly spines ran along the top of its back forming a ridge that gave an armored appearance.

Abundant Eocene fossils of plants and animals are found in the Green River Formation of Wyoming, Colorado and Utah. This fossil Pseudosalix Hanleyi, with stems, leaves and flowers preserved, is harder to find than a T-rex tooth!

Pegmatite is a type of igneus rock that frequently contains large crystals of quartz, feldspar, or mica. When looked at with a longwave UV flashlight, these minerals seem to glow! Kids at our museum can see this for themselves up close and personal.

Searching for fossils in the Badlands is an unforgettable adventure. There is not a house, telephone pole, or any sign of modern civilization, conditions are hot, and without amenities. Most of the fossils from this region are from the Eocene, like this hoplophoneus (a saber cat) skull fragment.

7,000 year old bison teeth found at the Cherney Bison Site. For a donation of $200 or more you can get your very own bison tooth as a thanks for helping fund the excavation of this incredibly unique fossil site in Coon Rapids, Minnesota.

This fossil is an example of what is called a "mortality plate" as it contains the remains of several animals that all died around the same time. Trilobites were some of the first animals to evolve an exoskeleton, and as a result fossilize very well compared to other Cambrian creatures.

One of the trilobites from our "time vault" where kids can handle real fossils from all time periods!

A dagger fly trapped in Baltic amber. We hope to raise money for a museum microscope so kids can examine insect specimens like this one!

Searching for fossils in the Badlands is an unforgettable adventure. There is not a house, telephone pole, or any sign of modern civilization, conditions are hot, and without amenities. Most of the fossils from this region are from the Eocene, like this hoplophoneus (a saber cat) skull fragment.

During the Eocene Epoch, 25 million years ago, parts of North America as far north as Oregon were covered with a sub-tropical forest that was nearly identical to the one found in Central America today. These large Brontotherium teeth only hint at the majestic size of a well preserved, adult skull.

During the Silurian Period, 430 million years ago, equatorial reef systems developed in the seas. The reefs were home to all kinds of invertebrates and among the most plentiful were brachiopods, bryozoans, and gastropods, seen in this specimen in our collection.

A flower beetle in baltic amber. We hope to raise money for a museum microscope so kids can examine insect specimens like this one!

7,000 year old bison teeth found at the Cherney Bison Site. For a donation of $300 or more you can get your very own bison tooth as a thanks for helping fund the excavation of this incredibly unique fossil site in Coon Rapids, Minnesota.

This fossil is of a lobed-finned fish named Osteolepsis macrolepidotus and was found in Scotland. The Devonian Period (named after fossils first found in Devon, England), is known as "The age of fishes" and was fish transformed into three major groups: lobe-finned, ray-finned, and sharks.

Glossopteris were the dominant trees across the supercontinent Gondwana during the Permian Period. Come see this and many other fossils and minerals in our collection that tell the story of Antarctica when it was a rainforest 270 million years ago.

Millions of years ago during the Silurian period, the Sahara Desert was a shallow sea full of aquatic animals like crinoids. Don’t be fooled! Crinoids are commonly called "sea lilies" but they aren't plants! They are echinoderms, like starfish and sea urchins, and many species are still alive today!

This Dimetrodon footprint was found in a fossilized swamp in New Mexico and dates from the late Carboniferous to early Permian Period, and is 300 million years old. Dimetrodons lived during the Permian period and went extinct 40 million years before dinosaurs evolved.

7,000 year old bison teeth found at the Cherney Bison Site. For a donation of $300 or more you can get your very own bison tooth as a thanks for helping fund the excavation of this incredibly unique fossil site in Coon Rapids, Minnesota.

Millions of years ago during the Silurian period, the Sahara Desert was a shallow sea full of aquatic animals like crinoids. Don’t be fooled! Crinoids are commonly called "sea lilies" but they aren't plants! They are echinoderms, like starfish and sea urchins, and many species are still alive today!

Woolly mammoths have two sets of tusks that grow continuously throughout life, about 6 inches per year. They have growth rings that are similar in appearance to growth rings of a tree. The rings can also be used to reveal which month the animal died.

While hunting for fossils, the unexpected is sometimes discovered. These finds can range from pottery shards to this fulgurite, or "fossil lightning," formed when lightning strikes the ground.

This Dimetrodon footprint was found in a fossilized swamp in New Mexico and dates from the late Carboniferous to early Permian Period, and is 300 million years old. Dimetrodons lived during the Permian period and went extinct 40 million years before dinosaurs evolved.

A flower beetle in baltic amber. We hope to raise money for a museum microscope so kids can examine insect specimens like this one!

Lythronax translates to "gore king" and was a tyrannosaur that lived during the Late Cretaceous in Utah.

Titanus giganteus is the world's largest beetle! They can grow up to 7 inches long and are native to tropical forests in South America.

This Dimetrodon footprint was found in a fossilized swamp in New Mexico and dates from the late Carboniferous to early Permian Period, and is 300 million years old. Dimetrodons lived during the Permian period and went extinct 40 million years before dinosaurs evolved.

Searching for fossils in the Badlands is an unforgettable adventure. There is not a house, telephone pole, or any sign of modern civilization, conditions are hot, and without amenities. Most of the fossils from this region are from the Eocene, like this hoplophoneus (a saber cat) skull fragment.

Adult Mammoths had one natural enemy–Neanderthals. This Neanderthal scraper in our collection was used for preparing large mammoth hides. The Mousterian style of manufacture reveals it to be 120,000-200,000 years old.

7,000 year old bison teeth found at the Cherney Bison Site. For a donation of $300 or more you can get your very own bison tooth as a thanks for helping fund the excavation of this incredibly unique fossil site in Coon Rapids, Minnesota.